Table 1 Demographic and clinical information data (n = 333)

Age, years

-1.521

0.128

<35

311(93.39)

13.00(8.00,17.00)

≥ 35

22(6.61)

10.00(6.00,16.00)

Occupation

10.915

0.028

Business or Service personnel

140(42.40)

12.00 (8.00,17.75)

Enterprises and institutions

51(15.31)

14.00 (9.00,18.00)

Individual businesses

63(18.92)

14.00 (10.00,19.00)

Workers

22(6.61)

8.00 (5.75,14.25)

Housewives or Unemployed

57(17.12)

11.00 (6.00,16.50)

Years of education, years

1.196

0.550

≤ 12

71 (21.32)

12.00 (8.00,16.50)

13 ~ 15

132 (39.64)

12.00 (7.00,18.00)

≥ 16

130 (39.04)

13.00 (9.00,17.00)

Household income, RMB/month

3.285

0.511

< 3000

64(19.22)

12 (8.00, 17.00)

3000 ~ 5000

146(43.84)

14(8.00, 17.00)

5001 ~ 7000

72(21.62)

11.50 (7.50,19.00)

7001 ~ 10,000

24(7.21)

11.00 (6.00,15.50)

> 10,000

27(8.11)

13.00 (9.50,15.00)

BMI, kg/m2

15.273

0.002

<18.5

14 (4.20)

12.00 (8.00,17.00)

18.5 ~ 23.9

131 (39.34)

10.00 (7.00,15.00)

24 ~ 27.9

103 (30.93)

13.00 (8.00,18.50)

≥ 28

85 (25.53)

15.00 (11.00,19.00)

Menstrual disturbances

2.700

0.007

Yes

244(73.27)

13.00(9.00,18.00)

No

89(26.73)

10.00(6.00,17.00)

Family history

2.240

0.025

(mother)

Yes

77(23.12)

14.00(11.00,18.00)

No

256(76.88)

12.00(8.00,17.00)

Hair loss

35.904

<0.001

No

136(40.84)

10.00 (6.00,14.50)

Mild

167(50.15)

14.00 (10.00,18.00)

Moderate

26 (7.81)

17.00 (11.00,24.00)

Severe

4 (1.20)

18.00 (14.00,23.50)

Acne

92.317

<0.001

No

151(45.35)

9.00 (6.00,14.00)

extremely mild

121(36.34)

13.00 (10.00,18.00)

Mild

38(11.41)

17.00 (15.00,25.00)

Moderate

17(5.10)

26.00 (19.00,31.00)

Severe

6(1.80)

31.00 (29.00,38.00)

Hirsutism

4.797

<0.001

Yes

147(44.14)

15.00 (10.00,21.50)

No

186(55.86)

11.00 (6.00,16.00)