Table 4. Comparison of lesions distribution and triggering factors between genders.
| Total N = 12031 n(% = n/N) | Male (N1 = 7206) n1(% = n1/N1) | Female (N2= 4825) n2(% = n2/N2) | p | |
|---|---|---|---|---|
| Triggering factors | ||||
| Season | 7243 (60.2) | 4388 (60.9) | 2861 (59.3) | 0.203 |
| stress | 4151 (34.5) | 2414 (33.5) | 1790 (37.1) | < 0.001 |
| Smoking | 626 (5.2) | 533 (7.4) | 92 (1.9) | < 0.001 |
| Alcohol | 2214 (18.4) | 1794 (24.9) | 405 (8.4) | < 0.001 |
| Sphagitis | 3296 (27.4) | 1816 (25.2) | 1486 (31.0) | < 0.001 |
| Lesions distribution | ||||
| Leg | 9348 (77.7) | 5355 (74) | 3993 (83) | < 0.001 |
| Scalp | 9024 (75.0) | 5797 (80) | 3227 (67) | < 0.001 |
| Elbow | 8069 (67.1) | 4757 (66) | 3312 (69) | 0.183 |
| Thigh | 8042 (66.8) | 4558 (63) | 3484 (72) | < 0.001 |
| Forearm | 7620 (63.3) | 4402 (61) | 3218 (67) | < 0.05 |
| Back | 7602 (63.2) | 4173 (58) | 3429 (71) | < 0.001 |
| Upper arm | 7298 (60.7) | 4104 (57) | 3194 (66) | < 0.001 |
| Waist | 6639 (55.2) | 3719 (52) | 2920 (61) | < 0.001 |
| Abdomen | 6405 (53.2) | 3442 (48) | 2963 (61) | < 0.001 |
| Knee | 6293 (52.3) | 3635 50) | 2658 (61) | < 0.05 |
| Bottom | 5867 (48.8) | 3303 (46) | 2564 (55) | < 0.001 |
| Chest | 5782 (48.1) | 3273 (45) | 2509 (53) | < 0.001 |
| Ear canal | 3863 (32.1) | 2374 (33) | 1489 (52) | 0.085 |
| Palm | 1244 (10.3) | 733 (10) | 511 (31) | 0.505 |
| Foot Plate | 1170 (9.7) | 667 (9) | 503 (11) | 0.055 |
| perineuma | 1145 (9.5) | 680 (9) | 465 (10) | 0.738 |
| Mucosab | 186 (1.5) | 123 (2) | 63 (1) | 0.085 |
| Glans | 526 (4.4) | 526 (7) |
Chi-square test, significant at p < 0.05.
a, include scrotum in men.
b, especially indicate lip mucosa.