A–C, Proportion of women who used self-sampling within each category, sociodemographic characteristics, and screening history. (A) People in the household, socioeconomic status, and position in the household. (B) Age, and migration background. (C) Screening history, screening region, and income percentile. The orange line denotes the overall proportion of women who used self-sampling across all participants (6.8%). Women are counted once for each variable, that is, the same woman will appear in her respective age, screening history, and sociodemographic variable category. The total in each variable is 857,866 women.