In order to identify the high-risk groups in the communityCancer of the cervix is often chosen for aetiological studies, because of its widespread prevalence, ease of diagnosis and close association with physical relationship in marriage and childbearing.A substantial number of investigators in Western countries have shown that the major risk factors leading to cancer of the uterine cervix are: early age at first marriage, at first coitus and at first pregnancy and include multiparity, a low socio-economic status, sexual promiscuity, and co-habitation with uncircumcised male partners. The question arises as to whether these factors also apply, to a similar or a greater degree, to women in the developing countries, where the standard of living is low, evidence of malnutrition exists and the majority of women marry and begin to bear children at an early age. The few controlled studies on cervical cancer reported from India (Wynder et al., 1954; Rao et al., 1959; Lakhanpal and Chablani, 1968) offer conflicting evidence with regard to the effect of the risk factors mentioned above. The purpose of the present study was to examine closely the association of certain suspected risk factors in cervical cancer, in the female population of Greater Bombay, to identify the high-risk group in the community, and to compare the results of the study with reported Western experience.
Incidence of cervical cancerAlthough cancer of the cervix uteri occurs at all ages, it is mainly observed during middle life. An increase in the age-specific rates is first observed at around the age of 25, followed by a steady rise up to the age of 59. Thereafter an apparent decline becomes noticeable. In fact, most registers report a precipitous rise in incidence of cervical cancer around the age of 30 (Jussawalla et al., 1968).