Objectives: Sexually transmitted infections' (STIs) rate vary in St. Petersburg, Estonia and Finland; the aim was to compare the determinants of self-reported sexually transmitted infections in these areas.
Methods: Data from four population-based questionnaire surveys were used (Finland in 1992 and 1999; St.
Objectives: To compare the risk factors of self-reported abortion in St Petersburg, Estonia and Finland, which are neighbouring areas having different abortion rates.
Methods: Data from four population-based questionnaire surveys (Finland 1992 and 1999; St Petersburg 2003; Estonia 2004) were used. With the exception of the 1992 Finnish survey (based on interviews) all were postal surveys.