Table 1 Demographics of the 254 nurses with perimenstrual headache
From: The role of purity and frequency in the classification of perimenstrual headache
N (%) or Median (IQR) | |
|---|---|
Age | 29 (25, 34) |
BMI | 21.0 (19.5, 23.2) |
Ethnicity | |
Han | 239 (94.1) |
Not Han | 15 (5.9) |
Marital status | |
Unmarried | 131 (51.6) |
Others | 123 (48.4) |
Education | |
Below college | 77 (30.3) |
College and above | 177 (69.7) |
Working years | 7 (3, 12) |
Department | |
Internal medicine | 147 (57.9) |
Surgery department | 76 (29.2) |
Others | 31 (12.2) |