Presence of

dysmenorrhea (%)

chi-square

df

p-value

Cramer’s V

yes

no

Average ≥ 10 (passed)

456 (75.6)

197 (81.7)

2.78

1

0.096

0.076 (small)

Average < 10 (failed)

147 (24.6)

44 (18.3)