The other risk factors investigated did not differ qualitatively between squamous cell and adenocarcinomas; both types of cervical cancer were strongly related to the number of sexual partners and to duration of oral contraceptive use, and both were related to early age at first intercourse and to parity.
The following variables were included in the multivariate model: marital status, "living with", age at first sexual intercourse, age at first delivery, parity, number of lifetime partners, number of partners in the last six months, use of contraceptives in the last six months.
For squamous cell carcinoma, increased risk was associated with increased number of regular sexual partners, early age at first intercourse, use of oral contraceptives, high parity, early age at first birth and long-term smoking.
**The following variables have been included in the multivariate model: marital status, living with, mean age at first sexual intercourse, mean age at first delivery, parity, number of lifetime partners, number of partners in the last 6 months, use of contraceptives in the last 6 months.
We investigated the potential association with education, socioeconomic status, exposure to wood smoke, history of pregnancy, parity, age at first intercourse, lifetime number of sexual partners, number of previous screens, time since last Pap smear, history of sexually transmitted diseases, and occurrence of other genital infections that could influence the development of SIL.
In the multivariate analysis no significant association was found between parity, age at first sexual intercourse, number of sexual partners and screening attendance.
Age at first intercourse was strongly correlated with education (positively) and parity (negatively), but not with number of sexual partners.
*We adjusted for age, parity, education, age of 1st sexual intercourse, no of sexual partners, HIV status and HR-HPV.
Age-adjusted prevalence of abnormal cervical cytology was not significantly associated with the sexual history such as age at first intercourse, number of life time sexual partners and higher parity.
There was no difference in seropositivity for HPV 6/11/16/18 with respect to women's reported education level, marital status, smoking or drinking habits, parity, age at first menstruation or sexual intercourse, or contraceptive use.
