مجله تحقیقات نظام سلامت
سال نهم شماره 1 (فروردین 1392)

Previous studies on the correlation between dietary intakes and stroke have mostly focused on the dietary glycemic index (GI) of potatoes and there is no information regarding the correlation between potato consumption and risk of stroke. Therefore، the aim of this study was to evaluate the correlation between potato consumption and risk of stroke in an Iranian population.

195 patients، who had had a stroke and were hospitalized in the neurology ward of Alzahra University Hospital، and 195 control patients from other wards of the hospital were selected by convenience non-random sampling method. Data on dietary intake were collected by the help of food frequency questionnaire. Other information was collected by the use of questionnaires.

Mean potato consumption was 31. 1 ± 3. 4 and 23. 4 ± 1. 3 g/d for cases and controls، respectively. Participants with the highest potato consumption were younger and more likely to be physically active. High potato consumption was associated with higher intakes of energy، fruits، vegetables، beans، and grains. After adjustment for age، sex، and total energy intake، we found that individuals with the highest potato consumption were more likely to have a stroke as compared with those with the lowest consumption (OR: 1. 9; 95% CI: 1. 0-3. 6). Even after additional control for smoking and physical activity، the correlation remained significant (OR: 1. 9; 95% CI: 1. 0-3. 6). Further adjustment for dietary intakes made the correlation non-significant (OR: 1. 1; 95% CI: 0. 5-2. 5). However، when BMI was taken into account in the final model، we found that individuals in the third quartile of potato consumption were significantly more likely to have a stroke (OR: 2. 2; 95% CI: 1. 0-4. 7).

We found evidence indicating a marginally significant independent correlation between potato consumption and risk of stroke. More studies are required to confirm this finding.

In order to match workers physiological characteristics with job demands and personnel to perform different jobs، maximum aerobic capacity (VO2-max) can be used. This study was conducted to develop a data bank of VO2-max among male workers of the industrial sector in Shiraz، Iran.

In this cross-sectional study، 500 healthy male workers employed in industries in the city of Shiraz participated voluntarily (20 to 59 years of age). Subjects were assessed by ergocycle test according to Astrand protocol for 6 minutes. A questionnaire consisting of two parts was used as data collecting tool. In the first part، demographic، and in the second part anthropometric and physiological characteristics were included.

5th، 50th، and 95th percentiles of VO2-max of workers were 2. 07، 2. 72، and 3. 02 L. min-1، respectively. The results showed that aerobic capacity decreases at a rate of ~10% per decade.

Developing such a data bank can be useful for personnel selection and assessment of workers’ physiological characteristics and job demand relevance.

Today job stress is one of the important phenomena of social life and a serious threat to the health of the workforce in the world. This study has been done with the aim of assess the prevalence of occupational stress and its relationship with the individual characteristics of workers in these industries.

This descriptive، cross-sectional study has been done in winter 2011; on 145 of the 450 employees working on a tunneling project located in the city of Karaj. In order to determine job stress the Health and Safety Executive (HSE) standard questionnaire has been used. For data analysis SPSS software Version 16 has been used and chi-square tests، Student’s t-test، and one-way analysis of variance were performed.

There was a significant relationship between job stress، and exercise، job-related education، and job experience (P < 0. 05). Therefore، people with job-related education، no job experience، and people who were accustomed to exercise had lower mean job stress. There was a significant correlation between job stress، and age، marital status، educational level، smoking، chronic disease، and body mass index (P > 0. 05).

Paying attention to job stress in the construction industry is essential. Training and exercise in construction projects can reduced job stress

This study aimed to assess the prevalence of anemia in unwanted and high risk pregnancies in the Isfahan Province، Iran.

This was a cross-sectional study. The sampling method used was multistage random sampling. The study population included all pregnant women referred to health centers، affiliated with Isfahan University of Medical Sciences، which had health records. In total، 7233 pregnant women were studied. Data was collected using the registration form and information obtained through maternal family documents. Their hemoglobin level was measured during pregnancy. SPSS software version 11. 5 was used. Descriptive and analytical statistics were performed.

The prevalence of anemia in the Isfahan Province was 9. 4%. The range of anemia was 2. 6% to 27. 2% and a significant difference between the prevalence of anemia was observed in different districts (P < 0. 001). There was a significant inverse relationship between the prevalence of anemia and maternal education (P < 0. 001). Moreover، there was a significant difference between the prevalence of anemia and age groups (P = 0. 006)، unwanted pregnancy and mothers age (P < 0. 001)، number of pregnancy (P = 0. 022)، prenatal care (P = 0. 016)، and pregnancy age (P < 0. 001). There was an indirect significant relation between prevalence of anemia and the mothers’ education (P < 0. 001). Logistic regression model revealed that pregnancy age، age of mother، unwanted pregnancy، pregnancy interval، and mothers’ education had significant effects on anemia.

Results of the present study highlighted the necessity of expanding prenatal care regarding appropriate dietary patterns and regular consumption of iron supplements، programs to promote iron supplements and folic acid before، during، and after pregnancy، and the importance of contraception in older women، and unwanted pregnancies