[Epidemiological study on the prevalence of cervical intraepithelial neoplasia among married women aged 25-54 years in Beijing between 2007-2008].
OBJECTIVE
To investigate prevalence of cervical intraepithelial neoplasia (CIN) among the married women aged 25-54 years in Beijing.


METHODS
With method of cross sectional survey, 6339 married women at age of 25 to 54 years were selected randomly in 137 communities of 12 districts or counties in Beijing from March 2007 to September 2008. The cervical smear cytology and high-risk human papillomavirus (HPV) infection of cervical secretion were detected. Women with abnormal cervical cytology were underwent colposcopy and cervical biopsy.


RESULTS
Among 6339 women, 9.58% (607/6339) cases had abnormal cytological results, the colposcopy and cervical biopsy showed the rate of CIN was 5.84% (370/6339) in total selected women and 60.96% (370/607) in women with abnormal cervical cytology, including 4.65%(295/6339) in CIN I, 0.80% (51/6339) in CIN II, 0.38% (24/6339) in CIN III; 0.06% (4/6339) in early invasive carcinoma (SCC). Based on geographical distribution, the rate of cervical lesions was 4.46% (42/942) in urban areas, 6.27% (188/3000) in suburbs and 6.01% (144/2397) in outer suburbs (P > 0.05).


CONCLUSIONS
It was found that the incidence of CIN was 5.84% in married women aged 25-54 years in Beijing, which did not show significant prevalence in urban, suburb and outer suburbs region.
Zhang
Wei-yuan
WY
Department of Obstetrics and Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China. zhangwy9921@hotmail.com
Wu
Ming-hui
MH
Zhang
Song-wen
SW
Zhou
Bao-li
BL
Li
Chang-dong
CD
Wang
Jian-dong
JD
Zhu
Li
L
Pan
Jing
J
D000328:Adult; D001706:Biopsy / Q000379:methods; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology / Q000821:virology; D002681:China / Q000453:epidemiology; D003127:Colposcopy; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D027383:Papillomaviridae / Q000302:isolation & purification; D030361:Papillomavirus Infections / Q000175:diagnosis / Q000453:epidemiology; D011230:Precancerous Conditions / Q000453:epidemiology* / Q000473:pathology / Q000821:virology; D015995:Prevalence; D012307:Risk Factors; D012494:Sampling Studies; D011795:Surveys and Questionnaires; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology* / Q000473:pathology / Q000821:virology; D014626:Vaginal Smears; D002578:Uterine Cervical Dysplasia / Q000453:epidemiology* / Q000473:pathology / Q000821:virology