International Journal of Epidemiology, Vol 26, 491-495, Copyright © 1997 by International Epidemiological Association
LN Biswas, B Manna, PK Maiti and S Sengupta
BACKGROUND: The association between sexual behaviour and cervical cancer is
well established. Despite a high incidence of cervical cancer in India, its
role has not been widely investigated in Indian women among whom the rate
of sexual promiscuity is known to be very low. A hospital-based
case-control study was carried out to investigate the role of sexual risk
factors in cervical cancer among rural Indian women. METHODS: A
case-control design was used in which a total of 268 subjects, comprising
134 women with invasive cervical cancer as cases and 134 control women were
studied. A multiple logistic regression model was used to analyse the data.
RESULTS: The risk factors found to be associated with cervical cancer were
early age at first coitus, extramarital sex partners of women and the time
interval since first exposure. In a multiple logistic regression model,
independent effects were observed for early age at first coitus, showing
maximum risk in women who reported their first intercourse at < 12 years
of age, compared to that of women at > or = 18 years (odds ratio [OR] =
3.5. 95% confidence interval [CI]: 1.1-10.9). Increased risk was also seen
for women who had extramarital sex relationships (OR = 5.5, 95% CI: 1.5-
19.5). The significant effect of early age at first coitus persisted after
adjustment for latency period which also showed its independent risk
association with cervical cancer in the multivariate analysis. CONCLUSION:
These findings confirm the association between early age at first coitus
and cervical cancer in women with a low rate of sexual promiscuity and
define the role of these risk factors in cervical carcinogenesis among
rural Indian women.
ARTICLES
Sexual risk factors for cervical cancer among rural Indian women: a case-control study
Department of Radiotherapy and Oncology, NRS Medical College, Calcutta, India.
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