Table 2 General characteristics of the participants
Characteristics | C1(Regular cycles) | C2(Less regular cycles) | C3(Irregular cycles) | No. n (%) |
|---|---|---|---|---|
Number participants, n (%) | 49(24.9) | 131(66.5) | 17(8.6) | 197 |
Age (yr), mean\(\pm\)SD | 25.78 ± 4.52 | 25.65 ± 5.26 | 23.41 ± 5.14 | 25.72 ± 5.15 |
BMI(kg/m2), mean\(\pm\)SD | 22.5 ± 5.12 | 22.4 ± 5.63 | 20.6 ± 4.13 | 21.8 ± 4.78 |
Skin changes throughout the menstrual cycle, n (%) | ||||
 Yes | 36(73.5) | 109(83.8) | 10(58.8) | 155(79.1) |
 No | 13(26.5) | 21(16.2) | 7(41.2) | 41(20.9) |
Skin becomes worse before, during or after menstruation, n (%) | ||||
 1 week | 32(65.3) | 84(64.6) | 8(47.1) | 124(63.2) |
 before | 8(16.3) | 28(21.5) | 3(17.6) | 39(19.9) |
 1 week after | 2(4.1) | 7(5.4) | 0 | 9(4.6) |
 No obvious changes in skin | 7(14.3) | 11(8.5) | 6(35.3) | 24(12.2) |
Characteristics of worsened skin condition, n (%) | ||||
 Dry | 11(22.4) | 20(15.4) | 1(5.8) | 32(16.3) |
 Gloomy | 22(44.9) | 48(36.9) | 3(17.6) | 73(37.2) |
 Pigmentation | 6(12.2) | 11(8.5) | 2(11.7) | 19(9.7) |
 Prone to acne | 22(44.9) | 59(45.4) | 9(52.9) | 90(45.9) |
 Increased sebum secretion | 12(24.5) | 40(30.8) | 3(17.6) | 55(28.1) |
 Decreased sebum secretion | 2(4.1) | 2(1.5) | 0 | 4(2.0) |
 Other | 2(4.1) | 11(8.5) | 3(17.6) | 16(8.2) |
 No obvious changes in skin | 4(8.1) | 11(8.5) | 4(23.5) | 19(9.7) |
Treat body/skin before, during or after menstruation, n (%) | ||||
 Yes | 9(18.4) | 17(13.1) | 0 | 26(13.3) |
 No | 40(81.6) | 113(86.9) | 17(100) | 190(96.9) |