Table 2.
Demographic and clinical characteristics of subjects.
| Characteristics |
PDM patients (n = 33) |
Healthy controls (n = 36) | T-test (p-value) |
|---|---|---|---|
| Age (year) | 24.24 ± 2.525 | 24.25 ± 2.170 | 0.989 |
| Menstrual cycle (day) | 30.09 ± 3.086 | 29.31 ± 2.109 | 0.218 |
| Menstrual days (day) | 4~7 | 4~7 | 0.117 |
| Onset age of PDM (year) | 16.36 ± 2.881 | NA | NA |
| History of PDM (year) | 7.88 ± 3.389 | NA | NA |
| VAS-P | 65.03 ± 16.337 | NA | NA |
| VAS-A | 55.30 ± 21.504 | NA | NA |
Values are mean ± standard deviation (SD); the menstrual days are described as minimum and maximum. PDM, primary dysmenorrhea; VAS-P, visual analog scale for pain; VAS-A, visual analog scale for anxiety.