Table 1

Prevalence of primary dysmenorrhea according to different ages among college girls

AgeNon-PDPDThe prevalence of PD
TotalMildModerateSevereTotalMildModerateSevere
16–17 (n=326)17814850861245.415.326.43.7
18–19 (n=1719)8378823294658851.319.127.15.1
20–21 (n=487)227260771493453.415.830.67.0
22–23 (n=23)71667369.526.130.413.0
All ages (n=2555)1249130646270713751.118.127.75.4
  • PD, primary dysmenorrhea.