Factors associated with severe dysmenorrhea
Body mass index (BMI) (p = .007), active smoking (p = .006), young age at menarche (p < .001), long (p = .022) and heavy (p < .001) periods were significantly associated with grade 3 dysmenorrhea in univariate analysis (Table 3).
Multivariate analysis showed a significant correlation between severe dysmenorrhea and BMI (leanness), young age at menarche, heavy menstruation, the presence of inter-menstrual pain and contraceptive use (Table 3).