Univariate analysis of risk factors for HR-HPV infection in (A) in 1983/84 cohort and (B) 1988/89 cohort. In this analysis, the Mann Witney measure (0.0 to 1.0) reflects the probability that a randomly selected patient from the test group is better off than a randomly selected patient from the control group. Benchmark values are: 0.36 medium-sized inferiority, 0.44 small inferiority, 0.50 equality, 0.56 small superiority, 0.64 medium-sized (relevant) superiority, and 0.71 large superiority. For non-inferiority the benchmark is defined as MW-measure = 0.36 (medium-sized inferiority), for superiority the benchmark is defined as MW-measure = 0.50 (equality). The medium-sized superiority (inferiority) is – per definition – a medically relevant group-difference .