From: Risk of uterine, ovarian and breast cancer following pelvic inflammatory disease: a nationwide population-based retrospective cohort study
Uterine cancer group
(N = 70)
Control group
(N = 280)
OR = 1.64
(95 % CI 0.90–2.97)
P = 0.11
PID (%)
20 (28.57)
55 (19.64)