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. 2021 Oct 20;297:156–168. doi: 10.1016/j.jad.2021.10.013

Table 2.

Sociodemographic and Results of the PHQ-9, GAD-7 and PHQ-15.

Variables Depression (PHQ-9)
Anxiety  (GAD-7)
Somatization symptoms (PHQ-15)
No symptom Minimal symptom Mild symptom Moderate symptom Severe symptom x2 P No symptom Low symptom Medium symptom High symptom x2 P No symptom Low symptom Medium symptom High symptom x2 P
Total 21,625 (64.2%) 7951 (23.6%) 2626 (7.8%) 994 (2.9%) 510 (1.5%) 25,498 (75.6%) 6241 (18.5%) 1313 (3.9%) 654 (1.9%) 16,958(50.3%) 8619(25.6%) 5310(15.8%) 1991(5.9%)
Gender Female 16,027 (62.0%) 6437 (24.9%) 2174 (8.4%) 814 (3.1%) 408 (1.6%) 3270.295 0.000⁎⁎ 19,107 (73.9%) 5120 (19.8%) 1096 (4.2%) 537 (2.1%) 188.476 0.000⁎⁎ 11,887 (46.0%) 7067 (27.2%) 4488 (17.4%) 2418 (9.4%) 861.051 0.000⁎⁎
Male 5598 (71.3%) 1514 (19.3%) 452 (5.8%) 180 (2.3%) 102 (1.3%) 6391 (81.5%) 1121 (14.3%) 217 (2.8%) 117 (1.5%) 5071 (64.6%) 1552 (19.8%) 822 (10.5%) 401 (5.1%)
Age 18–25 4016 (62.3%) 1600 (24.8%) 523(8.1%) 203(3.2%) 101(1.6%) 274.136 0.000⁎⁎ 4922(76.4%) 1152(17.9%) 265(4.1%) 104(1.6%) 138.178 0.000⁎⁎ 3187(49.5%) 1736(26.9%) 1012(15.7%) 508(7.9%) 62.892 0.000⁎⁎
26–30 5516 (60.6%) 2357 (25.9%) 792(8.7%) 294(3.2%) 147(1.6%) 6747(74.1%) 1794(19.7%) 377(4.1%) 188(2.1%) 4416(48.5%) 2438(26.8%) 1472(16.2%) 780(8.6%)
31–40 6896 (63.4%) 2649 (24.3%) 858(7.9%) 317(2.9%) 161(1.5%) 8023(73.7%) 2187(20.1%) 443(4.1%) 228(2.1%) 5477(50.3%) 2754(25.3%) 1750(16.1%) 900(8.3%)
41–50 3713 (69.4%) 1042 (19.5%) 377(7.0%) 138(2.6%) 78(1.5%) 4188(78.3%) 889(16.6%) 169(3.2%) 102(1.9%) 2800(50.3%) 1277(23.9%) 809(15.1%) 462(8.6%)
>50 1484 (77%) 303 (15.7%) 76(3.9%) 42(2.2%) 23(1.2%) 1618(83.9%) 219(11.4%) 59(3.1%) 32(1.7%) 1078(55.9%) 414(21.5%) 267(13.8%) 169(8.8%)
Nationality Han 20,915(64.2%) 7684(23.6%) 2523(7.7%) 963(3.0%) 496(1.5%) 9.907 0.624 24,649(75.7%) 6031(18.5%) 1264(3.9%) 637(2.0%) 8.496 0.485 16,375(50.3%) 8325(25.6%) 5145(15.8%) 2736(8.4%) 19.744 0.020*
Tujia 500(64.0%) 183(23.4%) 67(8.6%) 22(2.8%) 9(1.2%) 604(77.3%) 136(17.4%) 31(4.0%) 10(1.3%) 429(54.9%) 192(24.6%) 110(14.1%) 50(6.4%)
Miao 117(59.1%) 55(27.8%) 20(10.1%) 3(1.5%) 3(1.5%) 143(72.2%) 39(19.7%) 12(6.1%) 4(2.0%) 91(46.0%) 61(30.8%) 24(12.1%) 22(11.1%)
Else 93(63.7%) 29(19.9%) 16(11.0%) 6(4.1%) 2(1.4%) 102(69.9%) 35(24.0%) 6(4.1%) 3(2.1%) 63(43.2%) 41(28.1%) 31(21.2%) 11(7.5%)
Marriage married 15,648(66.0%) 5356(22.6%) 1731(7.3%) 661(2.8%) 318(1.3%) 123.381 0.000⁎⁎ 18,033(76.0%) 4339(18.3%) 890(3.8%) 452(1.9%) 8.369 0.039 12,097(51.0%) 5915(24.9%) 3700(15.6%) 2002(8.4%) 21.898 0.000⁎⁎
single or divorced 5977(59.8%) 2595(26.0%) 895(9.0%) 333(3.3%) 192(1.9%) 7465(74.7%) 1902(19.0%) 423(4.2%) 202(2.0%) 4861(48.6%) 2704(27.1%) 1610(16.1%) 817(8.2%)
Educational background undergraduate or less 20,783(64.2%) 7602(23.5%) 2531(7.8%) 959(3.0%) 487(1.5%) 5.599 0.231 24,504(75.7%) 5963(18.4%) 1273(3.9%) 622(1.9%) 8.578 0.035* 16,190(50.0%) 8292(25.6%) 5148(15.9%) 2732(8.4%) 31.932 0.000⁎⁎
postgraduate or more 833(62.5%) 346(26.0%) 95(7.1%) 35(2.6%) 23(1.7%) 984(73.9%) 276(20.7%) 40(3.0%) 32(2.4%) 762(57.2%) 323(24.2%) 161(12.1%) 86(6.5%)
Profession Doctor 9125(66.1%) 3131(22.7%) 976(7.1%) 369(2.7%) 202(1.5%) 156.017 0.000⁎⁎ 10,614(76.9%) 2451(17.8%) 491(3.6%) 247(1.8%) 76.800 0.000⁎⁎ 7589(55.0%) 3264(23.6%) 1956(14.2%) 994(7.2%) 346.903 0.000⁎⁎
Nurse 9390(61.3%) 3858(25.2%) 1335(8.7%) 510(3.3%) 231(1.5%) 11,327(73.9%) 3016(19.7%) 671(4.4%) 310(2.0%) 6939(45.3%) 4140(27.0%) 2726(17.8%) 1519(9.9%)
Technician 1374(66.3%) 474(22.9%) 156(7.5%) 41(2.0%) 28(1.4%) 1599(77.1%) 376(18.1%) 62(3.0%) 36(1.7%) 1081(52.20%) 573(27.6%) 299(14.4%) 120(5.8%)
Administrator 598(65.4%) 213(23.3%) 54(5.9%) 34(3.7%) 16(1.7%) 683(74.6%) 170(18.6%) 35(3.8%) 27(3.0%) 476(52.0%) 245(26.8%) 129(14.1%) 65(7.1%)
Backoffice 304(75.2%) 63(15.6%) 26(6.4%) 4(1.0%) 7(1.7%) 340(84.2%) 48(11.9%) 11(2.7%) 5(1.2%) 233(57.7%) 100(24.8%) 41(10.1%) 30(7.4%)
else 834(70.3%) 212(17.9%) 79(6.7%) 36(3.0%) 26(2.2%) 935(78.8%) 180(15.2%) 43(3.6%) 29(2.4%) 640(53.9%) 297(25.0%) 159(13.4%) 91(7.7%)
Career class formal staff 11,180(64.0%) 4082(23.4%) 1383(7.9%) 545(3.1%) 277(1.6%) 6.488 0.166 13,121(75.1%) 3278(18.8%) 700(4.0%) 368(2.1%) 8.926 0.030* 8901(51.0%) 4340(24.8%) 2712(15.5%) 1514(8.7%) 15.662 0.001⁎⁎
Temporary staff 10,445(64.3%) 3869(23.8%) 1243(7.7%) 449(2.8%) 233(1.4%) 12,377(76.2%) 2963(18.2%) 613(3.8%) 286(1.8%) 8057(49.6%) 4279(26.4%) 2598(16.0%) 1305(8.0%)
Job title junior 15,184(64.0%) 5626(23.7%) 1863(7.8%) 698(2.9%) 363(1.5%) 11.231 0.189 18,069(76.1%) 4303(18.1%) 927(3.9%) 435(1.8%) 24.779 0.000⁎⁎ 11,939(50.3%) 6148(25.9%) 3702(15.6%) 1945(8.2%) 10.36 0.110
middle 4854(63.8%) 1807(23.7%) 600(7.9%) 230(3.0%) 119(1.6%) 5615(73.8%) 1529(20.1%) 292(3.8%) 174(2.3%) 3794(49.9%) 1899(25.0%) 1241(16.3%) 676(8.9%)
senior 1585(67.2%) 518(21.9%) 163(6.9%) 66(2.8%) 28(1.2%) 1812(76.8%) 409(17.3%) 94(4.0%) 45(1.9%) 1223(51.8%) 572(24.2%) 367(15.6%) 198(8.4%)
Employment year <=5 6930(63.3%) 2694(24.6%) 866(7.9%) 299(2.7%) 157(1.4%) 91.785 0.000⁎⁎ 8392(76.7%) 1966(18.0%) 414(3.8%) 174(1.6%) 56.709 0.000⁎⁎ 5614(51.3%) 2934(26.8%) 1616(14.8%) 782(7.1%) 67.933 0.000⁎⁎
6–10 5830(61.3%) 2425(25.5%) 798(8.4%) 313(3.3%) 150(1.6%) 6969(73.2%) 1970(20.7%) 369 (3.9%) 208(2.2%) 4605(48.4%) 2443(25.7%) 1617(17.0%) 851(8.9%)
>10 8857(66.9%) 2829(21.4%) 962(7.3%) 382(2.9%) 203(1.5%) 10,126(76.5%) 2305(17.4%) 530 (4.0%) 272(2.1%) 6735(50.9%) 3237(24.5%) 2075(15.7%) 1186(9.0%)
Job-related stress low 10,221(79.5%) 1927(15.0%) 484(3.8%) 160(1.2%) 69(0.5%) 3270.295 0.000⁎⁎ 11,350(88.3%) 1208(9.4%) 222(1.7%) 81(0.6%) 2802.87 0.000⁎⁎ 8195(63.7%) 2958(23.0%) 1260(9.8%) 448(3.5%) 2638.27 0.000⁎⁎
medium 8441(56.7%) 4289(28.8%) 1440(9.7%) 485(3.3%) 239(1.6%) 10,458(70.2%) 3430(23.0%) 686(4.6%) 320(2.1%) 6367(42.7%) 4159(27.9%) 2893(19.4%) 1475(9.9%)
high 856(33.5%) 846(33.1%) 443(17.3%) 248(9.7%) 161(6.3%) 1180(46.2%) 893(35.0%) 287(11.2%) 194(7.6%) 723(28.3%) 597(23.4%) 619(24.2%) 615(24.1%)

p-value < 0.05;.

⁎⁎

p-value < 0.001.