Table 2 Ordered multiple logistic regression analysis of depression-related factors

 Female

6481 (18.8%)

21,714 (63.1%)

3999 (11.6%)

2224 (6.5%)

Referent

1.0

–

 Male

5490 (21.3%)

15,999 (62.1%)

2820 (10.9%)

1472 (5.7%)

−0.307

0.736

(0.705–0.767)

< 0.001

 18–25

6163 (34.5%)

10,064 (56.4%)

1059 (5.9%)

572 (3.2%)

Referent

1.0

–

 26–35

3456 (18.7%)

13,318 (72.2%)

1088 (5.9%)

583 (3.2%)

0.601

1.824 (1.735–1.917)

< 0.001

 36–45

1112 (10.7%)

8227 (79.5%)

660 (6.4%)

346 (3.3%)

0.813

2.255 (2.128–2.389)

< 0.001

 46–55

953 (9.7%)

5173 (52.4%)

342 6 (34.7%)

312 (3.2%)

1.825

6.204 (5.833–6.597)

< 0.001

 56–65

287 (7.8%)

931 (25.3%)

586 (15.9%)

1883 (51.1%)

3.961

52.520 (48.416–56.971)

< 0.001

 Primary school

1356 (24.3%)

3312 (59.3%)

680 (12.2%)

237 (4.2%)

Referent

1.0

–

 Middle school

253 (14.6%)

1188 (68.6%)

208 (12.0%)

84 (4.8%)

0.579

1.783 (1.558–2.041)

< 0.001

 High school

3427 (18.0%)

12,083 (63.5%)

2197 (11.5%)

1321 (6.9%)

0.851

2.343 (2.196–2.500)

< 0.001

 Bachelor’s degree

6273 (20.2%)

19,529 (62.8%)

3392 (10.9%)

1904 (6.1%)

0.607

1.834 (1.728–1.947)

< 0.001

 Master’s degree or above

662 (24.0%)

1601 (58.1%)

342 (12.4%)

150 (5.4%)

–

–

> 0.05

 Worker

1716 (17.2%)

6618 (66.2%)

1065 (10.6%)

602 (6.0%)

Referent

1.0

–

 Farmer

644 (17.8%)

2056 (56.9%)

618 (17.1%)

297 (8.2%)

0.118

1.125 (1.030–1.229)

0.009

 Soldier

891 (16.9%)

3276 (62.3%)

780 (14.8%)

315 (6.0%)

0.243

1.275 (1.172–1.388)

< 0.001

 Medical staff

2093 (22.9%)

5359 (58.5%)

973 (10.6%)

728 (8.0%)

0.294

1.341 (1.236–1.456)

< 0.001

 Teacher

1336 (18.1%)

5121 (69.2%)

560 (7.6%)

379 (5.1%)

0.554

1.741 (1.622–1.868)

< 0.001

 Cadre

1119 (29.6%)

2099 (55.6%)

417 (11.0%)

142 (3.8%)

−0.391

0.676 (0.616–0.742)

< 0.001

 White collar

2912 (24.1%)

7156 (59.1%)

1200 (9.9%)

838 (6.9%)

–

–

> 0.05

 Other

1260 (14.2%)

6028 (67.8%)

1206 (13.6%)

395 (4.4%)

0.238

1.269 (1.193–1.350)

< 0.001

 Two parents

8897 (21.1%)

25,977 (61.7%)

4748 (11.3%)

2494 (5.9%)

Referent

1.0

–

 One parent

1889 (17.6%)

6854 (63.8%)

1243 (11.6%)

756 (7.0%)

0.323

1.382 (1.301–1.468)

< 0.001

 Other

1185 (16.1%)

4882 (66.5%)

828 (11.3%)

446 (6.1%)

0.448

1.566 (1.463–1.676)

< 0.001

 No

1950 (16.2%)

7990 (66.3%)

1467 (12.2%)

644 (5.3%)

Referent

1.0

–

 Yes

10,021 (20.8%)

29,723 (61.7%)

5352 (11.1%)

3052 (6.3%)

–

–

> 0.05

 Authoritarian

5723 (20.2%)

17,917 (63.1%)

2857 (10.1%)

1899 (6.7%)

Referent

1.0

–

 Neglectful

577 (22.7%)

1550 (60.9%)

320 (12.6%)

99 (3.9%)

–

–

> 0.05

Permissive

3492 (19.7%)

10,949 (61.8%)

2211 (12.5%)

1054 (6.0%)

–

–

> 0.05

 Democratic

2179 (18.9%)

7297 (63.2%)

1431 (12.4%)

644 (5.6%)

−0.192

0.825 (0.775–0.878)

< 0.001

 Yes

7036 (20.3%)

21,089 (61.0%)

4101 (11.9%)

2355 (6.8%)

Referent

1.0

–

 No

4935 (19.3%)

16,624 (64.9%)

2718 (10.6%)

1341 (5.2%)

0.292

1.340 (1.279–1.403)

< 0.001

 None

1402 (22.6%)

3437 (55.4%)

897 (14.5%)

463 (7.5%)

Referent

1.0

–

 1–2

4413 (20.3%)

13,675 (62.8%)

2288 (10.5%)

1415 (6.5%)

0.533

1.705 (1.561–1.863)

< 0.001

  > 3

6156 (19.1%)

20,601 (64.0%)

3634 (11.3%)

1818 (5.6%)

0.250

1.284 (1.182–1.394)

< 0.001

 Peace and tranquility

3254 (17.0%)

12,078 (63.1%)

2576 (13.5%)

1227 (6.4%)

Referent

1.0

–

 Occasional quarrels

7119 (21.2%)

21,177 (63.1%)

3384 (10.1%)

1890 (5.6%)

−0.132

0.876 (0.839–0.915)

< 0.001

 Frequent quarrels

1598 (21.3%)

4458 (59.5%)

859 (11.5%)

579 (7.7%)

−0.410

0.664 (0.617–0.714)

< 0.001

 Autocratic

8670 (19.2%)

28,464 (62.9%)

5397 (11.9%)

2739 (6.1%)

Referent

1.0

–

 Laissez-faire

553 (23.5%)

1506 (64.1%)

153 (6.5%)

137 (5.8%)

0.490

1.632 (1.481–1.797)

< 0.001

 Democratic

2748 (21.8%)

7743 (61.6%)

1269 (10.1%)

820 (6.5%)

−0.086

0.917 (0.863–0.975)

0.005

 Unmarried

2680 (21.4%)

7710 (61.5%)

1368 (10.9%)

772 (6.2%)

Referent

1.0

–

 Married

6156 (21.0%)

18,280 (62.4%)

3137 (10.7%)

1726 (5.9%)

−0.212

0.809 (0.765–0.856)

< 0.001

 Divorced

1540 (14.5%)

6806 (63.9%)

1639 (15.4%)

667 (6.3%)

0.273

1.313 (1.225–1.408)

< 0.001

 Remarried

1312 (20.9%)

3963 (63.3%)

560 (8.9%)

430 (6.9%)

−0.160

0.852 (0.788–0.921)

< 0.001

 Widowed

283 (19.5%)

954 (65.7%)

115 (7.9%)

101 (7.0%)

−0.347

0.707 (0.601–0.832)

< 0.001

 0–2

4672 (20.5%)

14,057 (61.7%)

2553 (11.2%)

1508 (6.6%)

Referent

1.0

–

 3–5

3132 (18.4%)

10,500 (61.8%)

2156 (12.7%)

1215 (7.1%)

0.388

1.474 (1.403–1.548)

< 0.001

 6–8

1243 (14.9%)

5714 (68.3%)

1034 (12.4%)

375 (4.5%)

0.137

1.146 (1.077–1.221)

< 0.001

  > 9

2924 (24.3%)

7442 (61.8%)

1076 (8.9%)

598 (5.0%)

−0.209

0.812 (0.767–0.859)

< 0.001

 Negative attention bias

12.24 ± 3.36

12.3 ± 3.28

13.70 ± 3.65

13.17 ± 3.81

0.047

1.048 (1.042–1.054)

< 0.001

 Negative memory bias

12.04 ± 3.13

12.04 ± 3.24

12.27 ± 3.20

12.90 ± 3.35

−0.012

0.988 (0.982–0.994)

< 0.001

 Rumination

6.55 ± 2.37

6.62 ± 2.42

7.57 ± 2.58

7.14 ± 2.62

0.022

1.022 (1.014–1.030)

< 0.001

 Confirmed growth rate

0.45 ± 0.18

0.53 ± 0.15

0.56 ± 0.20

0.59 ± 0.26

1.938

6.946 (6.243–7.728)

< 0.001

 Death growth rate

3.41 ± 2.01

2.06 ± 0.88

3.63 ± 1.59

4.40 ± 1.48

0.025

1.0245 (1.014–1.037)

< 0.001