Table II.
Baseline characteristics of study population
| Men | Women | |||||||
|---|---|---|---|---|---|---|---|---|
| Acne (n = 64) | No acne (n = 818) | Total (n=882) | p-value | Acne (n = 86) | No acne (n = 941) | Total (n = 1,027) | p-value | |
| Socioeconomic status, n (%) | 0.645 | 0.404 | ||||||
| Basic/secondary* | 39 (60.9) | 522 (63.8) | 561 (63.6) | 55 (64.0) | 556 (59.3) | 611 (59.7) | ||
| Tertiary* | 25 (39.1) | 296 (36.2) | 321 (36.4) | 31 (36.0) | 381 (40.7) | 412 (40.3) | ||
| Smoking, n (%) | 0.951 | 0.602 | ||||||
| Never smoked | 28 (45.2) | 372 (47.4) | 400 (47.2) | 50 (59.5) | 516 (57.0) | 566 (57.2) | ||
| Former > 6 months | 19 (30.6) | 218 (27.8) | 237 (28.0) | 15 (17.9) | 208 (23.0) | 223 (22.5) | ||
| Former ≤ 6 months | 1 (1.6) | 18 (2.3) | 19 (2.2) | 2 (2.4) | 11 (1.2) | 13 (1.3) | ||
| Current smokers | 14 (22.6) | 177 (22.5) | 191 (22.6) | 17 (20.2) | 170 (18.8) | 187 (18.9) | ||
| Alcohol consumption, g/day, mean (SD) | 19.0 (36.5) | 16.9 (23.5) | 17.1 (24.7) | 0.284 | 5.6 (8.3) | 6.5 (9.3) | 6.4 (9.2) | 0.527 |
| Physical activity, n (%) | 0.014 | 0.374 | ||||||
| Inactive | 22 (35.5) | 145 (18.5) | 167 (19.7) | 14 (16.5) | 208 (23.0) | 222 (22.4) | ||
| Slightly active | 20 (32.3) | 314 (40.1) | 334 (39.5) | 39 (45.9) | 339 (37.4) | 378 (38.1) | ||
| Active | 17 (27.4) | 285 (36.4) | 302 (35.7) | 31 (36.5) | 343 (37.9) | 374 (37.7) | ||
| Very active | 3 (4.8) | 40 (5.1) | 43 (5.1) | 1 (1.2) | 16 (1.8) | 17 (1.7) | ||
*
Socioeconomic status was defined by education.
The information on smoking, physical activity, alcohol consumption was self-reported (26).
SD: standard deviation.
Some data are missing because some study cases have denied the subsequent use of data.