jafar hassanzadeh

The widespread utilization of high-resolution computed tomography (HRCT) for diagnosing and management of COVID-19 during the pandemic has prompted worries regarding a potential rise in future breast cancer cases. We aimed to estimate the Life Attributable Risk (LAR) of breast cancer in Shiraz, Iran, linked to HRCT use during the COVID-19 pandemic.

A cross-sectional study was conducted at Namazi Hospital in Shiraz from February 2, 2020, to December 31, 2022.The Imaging Performance Assessment of CT Scanners (ImPACT) patient dosimetry calculator was used to determine organ doses. LAR was computed utilizing the Biological Effects of Ionizing Radiation (BEIR) Committee models.

The sample size was 666, with ages spanning from 15 to 95 years. 25% (168) had HRCT more than once (2 to 8 times). The mean and 95% uncertainty limits (UL) for Total LAR of breast cancer, considering both single and multiple doses of radiation exposure, was 217 (95% UL, 194-244) per 100,000 persons.

According to our research, the risk of potential breast cancer should not be overlooked. It is advised to use the ultra-low-dose protocol over the low-dose in HRCT. Physicians, pulmonologists, and infectious disease specialists are advised to avoid unnecessary and repeated requests for chest HRCT in a short period.

It is necessary to examine different dimensions of psychometrics in different sciences, and paying attention to the accuracy and precision of the results can lead to the construction of reliable and valid tools; In this article, exploratory factor analysis has been done using SPSS software, version 26.

This research was a brief report that was conducted between 30 January 2023 to 10 October 2023. Reliability means reproducibility and continuity of results in the same conditions, and validity means matching the test with the purpose for which it was designed. Validity includes face, content, criterion and construct validity. To determine construct validity, various methods are used including: convergent validity, divergent validity, internal consistency and factor analysis. Factor analysis is a method that aims to simplify a complex set of data and allows researchers to find a specific pattern among many variables and complex relationships between them which includes exploratory factor analysis and confirmatory factor analysis. Exploratory factor analysis is a statistical technique that is used to estimate hidden factors or variables and reduce the large number of variables.

exploratory factor analysis is a statistical method that is used by reducing the number of variables and exploring the underlying structure of a large set of variables with the aim of discovering factors or hidden variables, and its basic assumption is that any variable may be related to any factor. It tries to use factor loadings to discover the factorial structure of the data and by identifying the basic structures, grouping the factors by considering the common meaning of the variables.

Reliability means repeatability and validity of the degree of accuracy of the results which are measured through different methods. Exploratory factor analysis uses construct validity measurement methods to simplify the data and provide more reliable and valid tools, so it is very important to pay attention to the accurate and correct measurement of the results in the validation of health system tools.

 Cardiovascular diseases (CVDs) account for one-third of all deaths worldwide.

 In this cross-sectional study, we extracted all death records from the Electronic Death Registration System categorized as ischemic heart disease (IHD) based on age, gender, and the year of death according to ICD-10 for this cross-sectional analysis. The Fars province is situated in southern Iran with a population of about 4 million. An analysis of years of life lost (YLL) resulting from premature death from IHD was conducted using the World Health Organization’s 2015 YLL framework. The trend of the YLL rates was investigated using joinpoint regression.

 In the Fars province, IHD was the cause of 46969 deaths throughout a 16-year study period, (2004 to 2019). Among these, 26,503 (56.4%) were men. The crude death rates per 100000 population for men and women were 84.2 and 66.5, respectively. The total YLL due to premature death due to IHD, during the 16-year study period, was 287625 in male, 209665 in female. The joinpoint regression showed a declining trend in the YLL rate associated with premature death. Annual Percent Change (APC) was -0.6% (95% CI -6.9 to 6.1, P=0.851) for males and -1.5% (95% CI -5.2 to 2.2, P=0.418) for females.

 The trends of the standardized mortality rate, YLL, and crude mortality rate held steady throughout a 16-year period. Planning for comprehensive primary and secondary prevention and increasing public knowledge of IHD are necessary.

Musculoskeletal Disorders (MSDs) are damage to the tissue of the musculoskeletal system that disrupt the flow and functionality of the human body. The current study evaluated changes in years of life lost (YLL) due to MSDs and mortality rates associated with MSDs in the 16 year-period from 2004 to 2019.

In this descriptive study, YLL for MSDs for the years 2004-2019 in Fars province was calculated using the YLL template from World Health Organization (WHO), and the number of total deaths due to MSDs in Fars province was obtained from the electronic population-based death registration system (EDRS).

Between the years 2004 and 2019, 746 deaths due to MSDs occurred in Fars province. The crude mortality rate increased in men from 1.29 (per 100,000 population) in 2004 to 1.47 in 2019 (p-value for trend=0.057) and in women from 1.18 in 2004 to 2.58 in 2019 (p-value for trend <0.001). Total YLL due to MSDs over the same period was 4,690 and 6,852 (0.14 and 0.22 per 1000 population) in men and women, respectively (female/male gender ratio =1.46).

The findings revealed that YLL due to MSDs was higher in females than males. The highest and lowest YLL due to MSDs was seen in the age group of 40-49 and 0-9 years, respectively. To minimize the effects of MSDs, further adjustment in the policies and regulations tailored for appropriate age groups and populations is recommended.

There is an increase in the incidence of breast and gynecologic cancers in Iran during the last three decades. Literature is inadequate about the Years of Life Lost (YLL) attributed to these cancers in Iran.

Mortality data due to these cancers amongst females aged >20 yr from 2004 to 2019 was acquired from “Electronic Death Registry System”, Fars Province, Iran. Using local health centers’ databases and national census reports from 1996 to 2016, the age-standardized incidence rate (ASR) per 100,000 people were estimated. YLLs were calculated using the WHO’s 2015 “YLL template”.

During 2004–2019, 1886 and 829 deaths occurred due to breast and gynecologic cancers, respectively. The ASR due to breast and gynecologic cancers showed a significant increasing trend (P<0.001 for each). The total YLL due to breast, cervical/uterine/vaginal/vulvar, and ovary cancers’ deaths in the 16-year period were 33,077, 7,172 and 6,584 yr, respectively. The highest YLLs were observed in 50-59-year-old females, followed by 40-49- and 60-69-year-old females. The 16- year trend of YLL rate due to premature mortality in breast cancer, ovary cancer and cervix cancer was increasing: annual percent change (APC) was 7.6% (95% CI: 5.5-9.7, P<0.001), 19.0% (95% CI: 12.2-26.1, P<0.001) and 9.2% (95% CI: -9.2 to 31.3, P>0.05, respectively.

Mortality rate and YLLs due to breast and gynecologic cancers have been increased in southern Iran during the last twenty years. Early detection programs and allocating treatments at early stages should be prioritized.

Unintentional falls are one of the main causes of death and a significant burden on victims, fami-lies, and communities. This study aimed to determine thetrend analysis ofmortality rate and years of life lost (YLL) due to unintentional falls in Fars Province, Iran.

All deaths due to unintentional fall in Fars Province, central Iran from the electronic population-based death registration system (EDRS) were obtained. Crude and age-standardized mortality rate, YLL and YLL rate data were calculated andto examine the trend, joinpointregression was used.

During the 16-year study period (2004-2019), 1816 deaths due to falls occurred in Fars Province. Crude mortality rate had stable trend in men and increasing trend in women. The total years of life lost due to falls, were 25,437 in men and 5,720 in women. According to the joinpoint regression analysis, the 16-year trend of YLL rate due to premature mortality was decreasing in males. The annual percent change (APC) was -2.8% (95% CI -4.5 to -1.0, P=0.005). However, there were stable trends for females, APC was 3.5% (95% CI -1.8 to 9.1, P=0.181).

Due to the increase in mortality caused by falls in women and stable trend in men, there is an ur-gent need to plan and implement preventive strategies to reduce the incidence of injuries caused by falls. Home and behavioral modifications such as increasing home lighting, providing handrails on stairs and bathrooms, and educating the people may play an important role in reducing fall deaths.

Hitherto, no instrumental research has been designed to measure the addiction potential for children in Iran. Therefore, the questionnaires designed to investigate addiction were examined in this systematic review article.

In the present systematic review, all Iranian and foreign research on addiction potential for children were examined until March 2022. Using separate keywords and their Latin synonyms according to Mesh terms, an extensive search was conducted in databases: PubMed, Magiran, Iranmedex, Medline, Google Scholar, SID, and Irandoc. In total, 173 Farsi and English papers were included in the initial list, and after evaluation according to the Meta-analysis of Observational Studies in Epidemiology (MOOSE) checklist and acceptance criteria, 43 final papers were selected for systematic review. 

Through searching in Persian and English databases and using related keywords, 173 papers were found in the initial search and after removing duplicates and unrelated studies, 43 papers were selected for systematic review. In this research, papers related to the addiction potential between 1998 and 2019 were considered, and among these, 22 papers particularly dealt with addiction. In the conducted studies, the awareness, attitude, talent, and factors affecting addiction were mostly measured and in some papers, addiction potential was measured.

Designing psychometrically appropriate tools is necessary to measure the addiction potential of children in Iran. Due to the unavailability of appropriate tools and the fact that the previous versions are not up to date and are not checked regularly, for better and more complete decision-making in the health policy-making process more investigation in this field is necessary.

Gastrointestinal cancers can cause major health problems globally since their burden is increas-ing in many countries. We aimed to investigate the trend of years of life lost due to gastrointestinal cancers in Fars Province, southern Iran during the 2004-2019.

In this cross-sectional survey study, we obtained the information regarding all deaths due to gastro-intestinal cancers in Fars Province from the electronic population-based death registration system (EDRS).Years of Life Lost(YLL) was calculated using the YLL template of 2015 by the WHO. To examine the trend for different years, join point regression based on the log-linear model was used. Joinpoint regression analysis describes changing trends over successive periods of time and the increasing or decreasing rate within each period.

During the years of 2004-2019, 9742 deaths due to gastrointestinal cancers occurred in Fars Prov-ince. 6013 (61.72%) cases were male and 3729 (38.28%) cases were female (Male / Female Sex Ratio: 1.61). Overall, 4152 cases (42.63%) were due to gastric cancer and 2112 cases (21.68%) were due to liver cancer. Total years of life lost due to premature death from gastrointestinal cancers during the 16-year study period was 73565 yr (2.33 per 1000 persons) in men, 52766 yr (1.71 per 1000 persons) in women, and 126331 yr (2.02 per 1000 persons) in both sexes.

Among all cancers, the highest mortality rates in both sexes belong to gastric cancer. This study showed the trend of YLL rate of malignant neoplasms of liver and intrahepatic bile ducts, esophagus, oral cavity, and colon cancer were increasing in both sexes, however, the trend of YLL rate for malignant neo-plasms of the small intestine was decreasing in both sexes. Variation of GI cancers patterns and trends around the Fars Province indicated that a more comprehensive control plan is needed to control these variations

We aimed to determine the mortality rate and Years of Life Lost (YLL) due to lung cancer in Fars, Iran, during the period from 2004 to 2019.

All deaths due to lung cancer in Fars Province, Iran from the electronic population-based death registration system (EDRS) were obtained. Crude mortality rate, age-standardized mortality rate, YLL and YLL rate data were calculated and trends examined.

During 2004-2019, 3346 deaths occurred due to lung cancer in Fars Province, which was 10.8% (3346/30936) of the total cancer deaths in this period. Crude mortality rate of lung cancer had increased 70% and 53% in male and female respectively from 2004 to 2019. The total YLL of lung cancer during the 16-year study period was 28,094 (0.9 per 1000) in men, 14,174 (0.5 per 1000) in women, and 42,268 (0.8 per 1000) in both sexes (sex ratio male/female=2). According to the join point regression, the 16- year trend of YLL rate due to premature mortality was increasing: APC was 2.5% (95% CI 0.9 to 4.2, P=0.005) for males, 1.4% (95% CI 0.3 to 2.6, P=0.017) for females.

The mortality rate and YLL due to lung cancer in Fars Province is increasing, although the standardized mortality has a constant trend. Tobacco control is the most effective and least expensive way to reduce the number of lung cancer patients worldwide. National and local media can also play an important role in informing people about the risk factors.

Although the incidence of leukemia’s is not high, many of these cancers lead to death over a short period. This is a cross-sectional study on leukemia deaths in southern Iran.

All deaths due to leukemia in the Fars province were obtained from the population-based electronic death registration system (EDRS). Crude and age-standardized mortality rate (ASMR), YLL, and YLL rate data were calculated, and joinpoint regression was used to examine the trend.

Totally, 3141 deaths from leukemia occurred in the Fars province during the study period (2004-2019). Of these, 61.5% (1933 cases) pertained to men. The crude mortality rate was 6.1 (95% CI: 5.8 to 6.4) in men and 3.9 (95% CI: 3.7 to 4.2) in women. Also, ASMR was 6.6 (95% CI: 6.3 to 6.9) and 4.2 (95% CI: 4.0 to 4.4) in men and women, respectively. The total YLLs due to leukemia were 32 804 in men and 23 064 in women. The joinpoint regression analysis demonstrated that the trend of YLL rate due to premature mortality was stable: the annual percent change (APC) was -1.2% (95% CI: -2.5 to 0.2, P = 0.090) for males, and -1.0% (95% CI: -2.9 to 0.9, P = 0.274) for females.

The mortality and YLL due to leukemia had a stable trend. However, this trend has been decreasing or increasing in some age groups. Determining and controlling essential risk factors, especially the environmental factors of leukemia, may reduce its burden in the Fars province. 

 This study was conducted to determine the mortality rate and the years of life lost (YLL) due to unintentional poisoning in Fars province in the south of Iran.

Study Design: 

A cross-sectional study.

 In this study, data from all of the deaths due to unintentional poisoning in the south of Iran between 2004 and 2019 was extracted from the population-based Electronic Death Registry System (EDRS). The Joinpoint Regression method was used to examine the trend of the crude mortality rate, the age-standardized mortality rate (ASMR), and the YLL rate.

 During the 16-year study period (2004-2019), 1466 deaths due to poisoning occurred in Fars province. Of this number, 75.2% (1103 cases) were in men, and 37.5% (550 cases) were in the age group of 15-29 years. The total YLL due to poisoning during the 16-year study period were 25149 and 8392 in men and women, respectively. According to the joinpoint regression analysis, the 16-year trend of YLL rate due to premature mortality was stable. Moreover, the annual percent change (APC) was -0.7% (95% CI: -4.0 to 2.7, P=0.677) for males and - 0.3% (95% CI: -3.8 to 3.3, P=0.862) for females.

 The trend of crude mortality rate, ASMR and YLL due to unintentional poisonings was stable. Considering the high rate of mortality and YLL due to unintentional poisoning in the age group of 15-29 years, it is essential to take necessary actions in this age group.

Traditionally, mortality rates are used to estimate public health problems and determine the relative significance of different causes of mortality, but they cannot necessarily determine the burden of premature death.  We aimed to investigate the 16-year trend of burden of premature mortality in Southern Iran.

In this cross-sectional study, all deaths due to various causes of death in Fars Province from the electronic population-based death registration system (EDRS) were obtained. Crude and age-standardized mortality rate, Years of Life Lost (YLL) and YLL rate data were calculated and to examine the trend, joinpoint regression was used.  

During the study period, 281,903 deaths occurred, of which, 59.85% (n=168,735) occurred in men. Also, 42.18% of these deaths (n=118,610) occurred due to cardiovascular diseases (CVDs). The total number of YLLs due to premature death was 4,154,828 years. Of these, 2,591,564 years (62.37%) were in men. The highest number of YLL was due to CVDs, external causes of death and cancer. Trend of YLL rate due to premature mortality was decreasing: the annual percent change (APC) was -2.1% (95% CI -2.6 to -1.6, P<0.001) for males, -0.9% (95% CI -1.4 to -0.4, P=0.002) (P=0.002) for females.

Although the trend of premature death has been decreasing during the years of study, but the seven major causes of premature death in 2004 to 2019 were non-communicable diseases, especially ischemic heart diseases, stroke, external cause of morbidity, and cancer.  Furthermore, our findings indicate a change in the role of non-communicable diseases in premature mortality in recent years.

Traffic accidents are one of the most critical health problems and the ninth leading cause of death globally. We aimed to determine the Mortality rate and the number of Years of Life Lost (YLL) due to road traffic accidents.

In this retrospective cohort study, mortality rate and YLL due to road traffic accidents were exam-ined in Fars province, central Iran during the years 2004-2019. Mortality statistics were collected through death registration of ministry of health and medical education for Fars Province. Age Standardized mortality Rate (ASR) was calculated and join point regression analysis carried out to examine the trend of YLL rate. Data were analyzed using Excel spreadsheet version 2016 and Join point Regression Program 4.9.0.0.

During the 16-year study period, 25,858 deaths due to road traffic accidents occurred in the province. 79.2% (20483 cases) were in men, and 33.7% (8703 cases) were aged 15-29 years. Total YLL during the 16-year study period were 458,975 (14.6 per 1000 people) in men, 117,999 (3.8 per 1000 people) in women. According to the join point regression, the 16- year trend of YLL rate due to premature mortality was decreasing: AAPC was -4.9% (95% CI: -8.8 to -0.9; P=0.018) for male, and -3.5% (95% CI: -6.3 to-0.5; P=0.011) for female.

Considering that the number of deaths, mortality rate and YLL has decreased in Fars province during the 16 years under study. Therefore, because the mortality rate due to road traffic accidents in Iran is higher than the global average, the need for training programs for drivers, compliance with standards and retro-fitting of vehicles, road safety, driving supervision and the use of seat belts are essential.

 According to the Global Burden of Disease Study (GBD), cerebrovascular diseases are the second leading cause of death in the world. This is a cross-sectional study on deaths due to cerebrovascular diseases in southern Iran.

 In this cross-sectional study, data on all deaths caused by cerebrovascular diseases in the Fars province between 2004 and 2019 was extracted from the Electronic Death Registry System (EDRS). To eliminate or minimize the influence of age composition, standardized mortality rate was used based on the 2013 Segi standard populations of low- and middle-income countries. In order to measure the years of life lost (YLL) from cerebrovascular diseases, the standardized life table was considered. The Joinpoint Regression method was used to examine the trend of the crude and standardized mortality rate and the YLL rate.

 Over the study period, 24,051 deaths occurred due to cerebrovascular diseases in Fars with 12,586 cases in men (52.3%). The trend of standardized mortality rate in males and females was decreasing (P value=0.001 and<0.001 for males and females, respectively). All YLL due to premature mortality from cerebrovascular disease during the 16-year study period were 119,436 (3.8 per 1000 persons) in men, and 111,172 (3.6 per 1000 persons) in women. Based on the joinpoint regression, the 16-year trend of YLL rate due to premature death was decreasing: annual percent change (APC) was -1.6% (95% CI -3.4 to 0.3, P=0.098) for males, and -2.0% (95% CI -3.6 to -0.4, P=0.017) for females.

 The trend of mortality rate and YLL caused by cerebrovascular diseases has decreased in our study. Necessary measures, mainly primary and secondary prevention, should be taken to continue the diminishing trend of cerebrovascular diseases.

Background: 

Burns constitute one of the most important etiologies of infection and mortality worldwide, with the most significant number of cases in low- and middle-income countries. This is a cross-sectional study on deaths due to burns in southern Iran.

Methods: 

In this study, data on all deaths due to burns in southern Iran between 2004 and 2019 was extracted from the population-based Electronic Death Registry System (EDRS). The Joinpoint Regression method was used to examine the trend of crude mortality rate, standardized mortality rate, and years of life lost (YLL) rate. In order to measure YLL, the number of deaths and life expectancy for different age and gender groups were used, for which the standard life table was considered.

Results: 

During this study, 2175 deaths due to burns occurred, 50.6% (1106 cases) of which were in men and 38.7% (841 cases) were in the 15-29 age group. The crude and the standardized mortality rate had a decreasing trend during the study years. The total number of YLL was 25260 (0.8 per 1000) in men, 25,785 (0.8 per 1000) in women, and 51,045 (0.8 per 1000) in both genders during the 16 years of the study.

Conclusion: 

Considering the high mortality rate in the 15-29 age group, which consists of the active and productive labor force, necessary actions are needed in order to improve safety equipment and to make the workplace safe.

the present study aimed to investigate gender difference in the perceived cause (intrinsic or extrinsic) of falls leading to fracture (FLF) and its association with selected social, health, and environmental factors.

All patients aged 60 years or older who were admitted to two referral hospitals due to FLF from August 1, 2018, to the end of May 2019, were included in the study. An interview-administered questionnaire was used to collect the required data from 300 participants (136 men and 164 women).

When compared to men, women were less physical active, were less smoker, had lower education, had more vision problems, used more sedatives, and were more satisfied with their life (P less than 0.05 for all). No statistical difference was observed between men and women about the perceived cause of Fall.

Although women and men were the same in the perceived cause of fall, they had considerably riskier lifestyles and lower health status. These factors include education, vision condition, physical activity, occupation, and taking sleeping pills. On the other hand, men were more smoker and alcohol user.

The rapid response of governments to overcome COVID-19 is increasingly important. In this study, we investigated the epidemiological changes of Covid-19 and the vaccination status of this disease in the Eastern Mediterranean Region (EMRO).

This research is a descriptive ecologic study. Data on vaccination status in the EMRO region were collected and Also the daily cases, daily COVID-19 mortality, the total number of deaths, and cases from January 3, 2020, to June 13, 2022.

Iran had the highest number of known cases and deaths, while Bahrain and Tanzania had the highest cumulative rates of cases and deaths, respectively. The highest average monthly incidence rate changes were observed in Iraq, with 41.74%. Iran had the highest average monthly death rate changes with 25.75% and the highest number of known cases and deaths.The United Arab Emirates had the highest total vaccinations per 100 individuals and the highest percentage of persons fully vaccinated.

It appears that cooperation among countries in the region regarding vaccination can lead to a decline in the disease and ultimately control its spread. Furthermore, there is a noticeable decrease in the percentage of monthly changes after the start of vaccination in the EMRO countries. The gradual increase in some countries during the last segment highlights the importance of booster vaccinations.

Given that COVID-19 spreads worldwide, it has become a public health priority. This study aims to investigate the correlation between social capital and the epidemiological indicators of COVID-19. 

This survey is an ecological study, so all studied variables are aggregated. To collect the variables in the study, a data set was provided, which included the information of each country based on the cumulative deaths, case fatality rate, recovery rate, and the number of performed COVID-19 tests. We drew scatter plots of the social capital for the studied countries based on COVID-19 indices. 

In all the studied countries, the highest cumulative incidence rate of COVID-19 cases was in Montenegro (60310.56 per million), while the lowest cumulative incidence rate of cases was in Tanzania (8.42 per million). The highest and lowest cumulative incidence rate of death due to COVID-19 was in Belgium (1425.15 per million) and Burundi (0.08 per million), respectively. Also, social capital has a significant direct correlation with the cumulative incidence rate of cases (r=0.42, P<0.001), the cumulative incidence rate of death (r=0.31, P<0.001), and the number of performed COVID-19 diagnostic tests per million. Social capital was correlated with recovery and mortality rates (r= -0.21, P=0.007).

Considering that social capital has a statistically significant relationship with the indices of case fatality and recovery rates, it is possible to increase social capital with appropriate interventions by relevant individuals and organizations to improve the pandemic management in different countries.

This study was conducted to determine the mortality rate and years of life lost (YLL) due to homicide in Fars province. Study Design: This was a cross-sectional study.

All data related to deaths due to homicide in Fars province were obtained from the Populationbased Electronic Death Registration System. Crude and age-standardized mortality rate, YLL, and YLL rate data were calculated and joinpoint regression was used to examine the trend.

During 2004-2019, 2148 deaths due to homicide occurred in Fars province, and (1782 cases (83.0%) were men. The crude mortality rate in men decreased by 44.0% from 2004 to 2019, but a stable trend was observed in women. The total YLL due to homicide during these 16 years was 43 230 (1.37 per 1000 people) in men and 8931 (0.29 per 1000 people) in women. According to the joinpoint regression analysis, the 16-year trend of the YLL rate due to premature mortality in men was decreasing, and the annual percent change (APC) was -4.00% (95% confidence interval [CI]: -6.60 to -1.20, P = 0.008). However, women demonstrated stable trends in this respect, and APC was -0.50% (95% CI: -3.10 to 2.20, P = 0.704).

The crude and standardized mortality rates and the number of YLL due to homicide in the study period had a significant decreasing trend in men but a stable trend in women. To control this issue, officials and policymakers should identify the areas of homicide and control its risk factors such as economic and social issues, drug addiction, and the state of violence.

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) can be transmitted through direct, indirect, or close contact with infected people by contaminated respiratory droplets or saliva. This study aimed to investigate the epidemiology of coronavirus disease 2019 (COVID-19) and the secondary attack rate (SAR) in the cases’ close contact. A total of 431 confirmed COVID-19 patients were randomly selected using systematic random sampling from 15 May to 13 June 2020. The required data were extracted from the CORONALAB database of the Center for Disease Control and Prevention (CDC) at Shiraz University of Medical Sciences. Detection of COVID-19 was performed using Real- Time Polymerase Chain Reaction (RT-PCR) and nasopharyngeal swabs. SAR was also calculated for different groups. Among the index cases, 64.27% were male, 24.80% were public sector employees, and 4.87% were admitted to the intensive care unit. In addition, most of them aged 30-39 years. The SAR was 11.56% (95% CI: 9.86% to 13.25%) in the close contacts. Accordingly, the highest SAR was observed among the friends, 19.05% (95% CI: 7.17% to 30.92%), followed by the spouses of COVID-19 cases, 16.67% (95% CI: 10.81% to 22.51%). Furthermore, diabetes (6.03%) and cardiovascular disease (5.1%) were the most common comorbidities among the index cases. The findings suggested that the SAR was relatively lower among the close contacts. Considering the familial and non-familial relationships between the index cases and their close contacts were the major causes of disease transmission. Therefore, it is crucial to conduct tracing for COVID-19 contacts in all cases with whom patients have had close contact.

Oral health conditions are a group of complications that are partially associated with breast cancer (BC) treatments. However, evidence on the sociodemographic risk factors of oral health conditions among BC patients is scarce. This study aimed to investigate the relationship between the socioeconomic status (SES) and dental health in a population of Iranian female BC patients in 2020. A cross-sectional study was conducted in Kerman, Iran. Indices of decayed, extracted, and filled teeth were measured based on clinical examination by a general dentist. Data were collected through structured face-to-face interviews, review of the patients’ medical records, and clinical examination for six months. Data were analyzed by applying univariate and multivariable generalized negative binomial regression (GNBReg). Data were analyzed using the Stata. Data from 1760 BC patients were collected, 1707 of whom were included in the analysis. The mean age of the participants was 46.3 ± 9.8 years. The mean of the total decayed, missing, and filled teeth, and the number of decayed teeth (DT), missing teeth (MT), and filled teeth (FT) were 12.8 ± 5.8, 3.5 ± 3.1, 4.6 ± 5.2, and 4.6 ± 4.4 teeth, respectively. Regarding SES, the number of participants with high, high-middle, low-middle, and low SES were 421, 432, 395 and 459, respectively. According to univariate analysis, there was no significant difference between different SES in mean DMFT (decayed, missing, and filled teeth), while SES was significantly associated with DT, MT and FT among the study participants. Female BC patients in Iran have lower levels of dental health regardless of their SES. As those from different socioeconomic classes are seeking different and mostly inadequate or unsuitable dental healthcare services, tailored interventional programs are needed to address the dental healthcare needs of patients in each socioeconomic class.

Abdominal obesity is associated with increased risk of myocardial infarction and death events. Thus, obtaining data on the status of abdominal obesity is important in risk factor assessment and prevention of non-communicable diseases. This study aimed to evaluate the validity of using pictograms to classify abdominal obesity indices (waist circumference [WC], waist-hip ratio [WHR], and waist-height ratio [WHtR]) into normal and at-risk categories and determine the effects of demographic characteristics on this validity.

This cross-sectional study used data from Pars Cohort Study (PCS). Participants chose the most similar pictogram scores to their body size at 15, 30 years, and current age. Optimal normal/at-risk cut-off values for pictograms were calculated using sensitivity/specificity plots. Receiver operating characteristic curves were used to evaluate the validity of pictograms. Validity measures were analyzed across different subgroups of demographic characteristics.

A total of 9263 participants (46% males) were included in the study. The estimated area under the curves were 84% for WC, 77% for WHR, and 89% for WHtR in males, and 84% for WC, 73% for WHR, and 90% for WHtR in females. Optimal pictogram cutoffs to classify central obesity for WC, WHR, and WHtR were 4, 4, and 5 in males and 4, 4, and 6 in females, respectively. The majority of demographic characteristics were not associated with the validity of pictograms.

Using pictograms to determine normal and at-risk categories of abdominal obesity indices is valid among adult population with a wide range of demographic characteristics. However, the results need to be interpreted with caution in those with a positive history of weight fluctuation.

  Mental health problems are common among adolescents. Proper screening and rehabilitation could improve adolescents’ function at the present time and in the future. This study aimed to assess the prevalence of psychiatric disorders and the associated familial factors among high school students. The present cross-sectional study was conducted on 630 high school students (315 boys and 315 girls) aged 13-17 years in Jahrom, Iran. The participants were selected using random cluster sampling. The data were collected using the self-report version of strength and difficulties questionnaire (SDQ), and were analyzed using the SPSS statistical software, version 16.0. The results showed that 22.38% of the students had total difficulty (14.9% of boys, and 29.8% of girls). The highest prevalence was related to peer relationship problems (23%) followed by conduct problems (18.1%), hyperactivity (11.1%), pro-social behaviors (6.3%), and emotional problems (5.7%). The results of multivariate logistic regression analysis revealed that female gender (odds ratio [OR]: 2.52, 95% confidence interval [CI]: 1.68-3.66) increased the odds; while grade 9 (OR=0.52, 95% CI: 0.32-0.83), and number of siblings (OR: 0.88, 95% CI: 0.78-0.99) decreased the odds of mental health problems (p<0.05). According to the results, the prevalence of behavioral disorders was relatively high among the students. The number of sibling, being girl and being in nine grade significantly contributed to the prevalence of behavioral disorders. In order to reduce these disorders, familial intervention and educational programs are recommended to be designed and implemented to prevent and treat behavioral disorders among students.

Acute appendicitis is the major cause of abdominal pain which indicates urgent surgery. Commonly, it is diagnosed through clinical signs and symptoms and blood test. This study aimed to assess the  accuracy of acute appendicitis diagnosis through signs and symptoms, Alvarado score system, and ultrasonography method. This was a cross-sectional study. Medical profiles of 696 patients with abdominal pain suspected of acute appendicitis referred to Shahid Faghihi hospital were reviewed from June to October 2016. A checklist was used for data collection. The gold standard for diagnosis of acute appendicitis was patient’s pathology report. For signs and symptoms, Alvarado score system and ultrasonography method sensitivity, specificity, positive and negative predictive value, and the Youden’s index were calculated based on true positive and true negative values. Among 696 patients suspected of acute appendicitis, 371 (53.3%) were men and 325 (46.7%) women. The mean age for women and men was 30.14+11.49  and 30.53+11.61 years, respectively. Sensitivity and specificity for ultrasonography and Alvarado score system were 68.1% and 78.9%, 76.1%, and 59.9%, respectively. The areas under roc curve and the Youden’s index for ultrasonography and Alvarado score system were 0.73, 0.47, and 0.71, 0.55, respectively.   The results showed that ultrasonography and Alvarado score system were effective pre-surgical diagnostic tests for patients suspected of acute appendicitis.