Dietary intake and lifestyle behaviour in different phenotypes of polycystic ovarian syndrome: a case–control study

Background The present study aimed to compare dietary intake and lifestyle behaviour in women with polycystic ovarian syndrome (PCOS) and healthy women. Methods One hundred and sixty healthy women (partner with male infertility) were recruited to a control group; 168 women with PCOS (diagnosed on ultrasound) were recruited to a case study group for this cross‐sectional comparative study. The case group was classified into three phenotypes based on the presence or absence of menstrual disorder (M), hyperandrogenism (HA) and polycystic ovary according to sonography (PCO): HA+PCO (n = 53), PCO+M (n = 57) and M+HA+PCO (n = 66). Dietary intake and lifestyle behaviour were measured using a food frequency questionnaire and a lifestyle questionnaire. Results The mean energy (P