Demographic and scale measurements of participants with and without dysmenorrhea
| With dysmenorrhea (n=807) | Without dysmenorrhea (n=48) | T | P values | |
| Age | 16.87 (0.88) | 16.98 (1.02) | −0.82 | 0.412 |
| MA | 12.80 (1.03) | 12.92 (1.05) | −0.76 | 0.448 |
| BMI | 19.97 (2.29) | 19.94 (2.21) | 0.07 | 0.947 |
| ULS | 46.28 (8.38) | 42.56 (8.53) | 2.98 | 0.003** |
| Depression† | 7.85 (3.43) | 6.08 (2.92) | 3.49 | 0.001** |
| Anxiety† | 9.09 (3.52) | 7.04 (3.28) | 3.93 | <0.001** |
| Stress† | 7.26 (3.83) | 6.10 (3.87) | 2.04 | 0.042* |
| DASS-21† | 24.20 (9.43) | 19.23 (8.59) | 3.57 | <0.001** |
| ICDS | 11.38 (4.94) | 9.75 (4.68) | 2.22 | 0.026* |
| CMSS-sev | 12.26 (9.25) | 0 | – | – |
| CMSS-fre | 10.85 (8.92) | 0 | – | – |
*p<0.05; ** p<0.01.
†Depression, anxiety and stress are all subscales of DASS, DASS-21 represents the total scores of whole DASS-21 scale.
BMI, body mass index; CMSS, Cox Menstrual Symptom Scale; CMSS-fre, CMSS frequency subscale scores; CMSS-sev, CMSS severity subscale scores; DASS-21, Depression Anxiety Stress Scale; MA, menarche age; ULS, UCLA Loneliness Scale.