Table 2. Comparisons of skin care habits between the case and control groups.
| Rosacea N(%) | Control N(%) | p-value | ||
|---|---|---|---|---|
| Skin type | Neutral | 110 (8.8) | 529 (34.4) | <0.001 |
| Dry | 339 (27.2) | 244 (15.9) | ||
| Oily | 292 (23.5) | 284 (18.5) | ||
| Mixed | 504 (40.5) | 481 (31.3) | ||
| Skin care frequency | Hardly | 241 (19.4) | 279 (18.1) | <0.001 |
| 1 / day | 220 (17.7) | 365 (23.7) | ||
| 2 / day | 757 (60.8) | 828 (53.8) | ||
| ≥ 3 / day | 27 (2.2) | 66 (4.3) | ||
| Function of skin care products | Moisturizing | 884 (71.0) | 1162 (75.6) | 0.007 |
| Whitening | 261 (21.0) | 368 (23.9) | 0.063 | |
| Antiaging | 125 (10.0) | 195 (12.7) | 0.030 | |
| Oil-control | 254 (20.4) | 236 (15.3) | <0.001 | |
| Antiallergy | 200 (16.1) | 169 (11) | <0.001 | |
| Ways of buying products | Shopping mall/pharmacy | 783 (62.9) | 925 (60.1) | 0.139 |
| Salon | 140 (11.2) | 72 (4.7) | <0.001 | |
| Online | 142 (11.4) | 348 (22.6) | <0.001 | |
| Self-made | 24 (1.9) | 23(1.5) | 0.379 | |
| Direct selling | 92 (8) | 182 (11.8) | <0.001 | |
| Cleansing frequency | Hardly | 369 (29.6) | 411 (26.7) | <0.001 |
| 1~3 / week | 143 (11.5) | 357 (23.2) | ||
| 1 / day | 429 (34.5) | 582 (37.8) | ||
| ≥ 2 / day | 304 (24.4) | 188 (12.2) | ||
| Type of cleansers | Soap | 49 (3.9) | 106 (6.9) | 0.001 |
| Foam | 497 (39.9) | 516 (33.6) | 0.001 | |
| Emulsion | 216 (17.4) | 248 (16.1) | 0.389 | |
| Exfoliator | 241 (19.4) | 285 (18.5) | 0.580 | |
| Facial mask frequency | Hardly | 589 (47.3) | 775 (50.4) | <0.001 |
| 1 / week | 191 (15.3) | 377 (24.5) | ||
| 2~3 / week | 259 (20.8) | 261 (17.0) | ||
| 4~5/ week | 83 (6.7) | 37 (2.4) | ||
| ≥ 6/week | 123(9.9) | 88 (5.7) | ||
| Beauty salon frequency | Hardly | 944 (75.8) | 1289 (83.8) | <0.001 |
| ≤ 2 / month | 156 (12.5) | 197 (12.8) | ||
| 3~4 / month | 76 (6.1) | 40 (2.6) | ||
| > 1 / week | 69 (5.6) | 12 (0.8) | ||
| Type of skin care in the salon | Moisturizing | 224 (18.0) | 155 (10.1) | <0.001 |
| Whitening | 40 (3.2) | 68 (4.4) | 0.101 | |
| Antiaging | 18 (1.4) | 49 (3.2) | 0.003 | |
| Oil-control | 65 (5.2) | 30 (2.0) | <0.001 | |
| Antiallergy | 50 (4.0) | 31 (2.0) | 0.002 | |
| Exfoliator | 25 (2.0) | 16 (1.0) | 0.035 | |
| Other | 14(1.1) | 4(0.3) | 0.005 | |
| Make-up frequency | Hardly | 786 (63.1) | 988 (64.2) | <0.001 |
| 1~2 / week | 64 (5.1) | 211 (13.7) | ||
| 3~5 / week | 135 (10.8) | 201 (13.1) | ||
| ≥ 6 / week | 260 (20.9) | 140 (9.1) | ||
| Use foundation products | No | 812 (65.2) | 1042 (67.7) | 0.182 |
| Yes | 433 (34.8) | 498 (32.4) | ||
| Use make-up remover after making up | No | 930 (74.7) | 1118 (72.7) | 0.232 |
| Yes | 315 (25.3) | 420 (27.3) | ||
| Sunscreen cream frequency | Hardly | 880 (70.7) | 848 (55.1) | <0.001 |
| 1~2 / week | 125 (10.0) | 247 (16.1) | ||
| 3~5 / week | 67 (5.4) | 116 (7.5) | ||
| ≥ 6 / week | 173 (13.9) | 327 (21.3) |