[Results of the Leiden mass screening for cervix uteri carcinoma; the 'young' (24-34 years) versus the 'old' (35-54 years) group of women].

The population screening for cervical carcinoma in the Leiden region took place in the period 1977-1988. It involved four screenings of women in the age group 35-54 years, and two screenings of women in the age group 25-34 years, with a screening interval of 3 years. We conclude that screening for cervical carcinoma is useful. Cytological investigation of young women (under 35 years) is indicated. This conclusion is based in part on the data of the regional and national cancer registries and on the mortality figures in The Netherlands. Data on HPV infection in Dutch males and females were also taken into account.