Prevalence of for Precancerous and Invasive Cancer Lesions of Cervix Tabriz 2003-2005

Cervical cancer is one of the most common female genital tract malignancies and one of the most common causes of female death. The majority of cervical cancers develop through a series of gradual, precancerous lesions. Screening asymptomatic women with regular Pap smear allows diagnosis of the readily treatable preinvasive phase. In regard of stopping the cervical cancer screening programs in health care centers of Iran cities, this study was undertaken to determine the precancerous lesions incidence and assess the effect of demographic, pathologic, and family economic factors on developing lesions. This cross sectional, descriptive study was carried out in 2003- 2005 on 6024 women under coverage of Tabriz health care centers. Pap smear was done in all subjects and questionnaires were filled by health providers. The data were analyzed with SPSS statistical software. Of 6024 Pap smears 62 (1.02%) demonstrated precancerous lesions of which 41(0.68%) were ASCUS (Atypical Squamous Cells of Undetermined Significance), 11 (0.18%) were LSIL (Low Grade Squamous Intraepithelial Lesion) and 10(0.16%) were HSIL (High Grade Squamous Intraepithelial Lesion). No invasive cancer case was observed in this study. According to the present study, the following factors increased the risk of precancerous lesions: multiparity≥3, abortion≥1, gravida≥3, and multi partnership. The protective effect of condom as a barrier contraceptive was observed. These results indicated that screening of asymptomatic women could be of great importance.