[''Liva"--population survey of female sexual habits]

Sexual and contraceptive habits, e.g. early age at first intercourse, multiple sexual partners and non-use of condoms, are well-established risk factors for sexually transmitted infections and unwanted pregnancy. The aim was to examine if and how educational level and degree of urbanization are related to age at first intercourse, lifetime number of sexual partners and condom use.

We used data from a large population-based questionnaire survey conducted during 2004-2005, including a random sample of 20,478 women (18-45 years) (participation rate: 81.4%). We used multiple logistic regression analysis to estimate odds ratios (OR) of early sexual debut (≤ 15 years old), having had > 5 lifetime sexual partners and never-use of condoms associated with educational level and degree of urbanization. The OR of having had an early sexual debut was almost twofold higher among women with a lower educational level (OR = 1.93; 95% CI: 1.73-2.15) than among women with higher educational level, and the OR of having had > 5 lifetime sexual partners was highest among women in the capital centre (OR = 2.36; 95% CI: 2.16-2.57) compared with women in the small provincial town areas. Furthermore, the OR of never-use of condoms was 2.53 (95% CI: 2.15-2.97) for women with a lower educational level compared with those with a higher educational level (mutually adjusted for age, degree of urbanization and educational level).

Low educational level is associated with young age at first sexual intercourse and never-use of condoms, and living in an area of high urbanization is associated with a higher lifetime number of sexual partners. This information may be of importance for prevention in relation to women's reproductive health.