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Table 1 Baseline and two follow-up surveys sample size and participants’ characteristics

From: The role of basic health insurance on depression: an epidemiological cohort study of a randomized community sample in Northwest China

  

Baseline

7-month

 

20-month

 
   

interviewed

no

p

interviewed

no

p

Sample

 

4079

2220

1859

 

1888

2191

 

City, No. (%)

lanzhou

2961 (72.6)

1603 (72.2)

1358 (73.1)

.55

1572 (71.7)

1389 (73.6)

.19

 

baiyin

1118 (27.4)

617 (27.8)

501 (26.9)

 

619 (28.3)

499 (26.4)

 

sex, No. (%)

Male

1919 (47.0)

1076 (48.5)

843 (45.3)

.05

1027 (54.4)

892 (40.7)

<.001

 

Female

2160 (53.0)

1144 (51.5)

1016 (54.7)

 

861 (45.6)

1299 (59.3)

 

age, No. (%)

16-35

777 (19.0)

326 (14.7)

451 (24.3)

<.001

517 (23.6)

260 (13.8)

<.001

 

36-45

1220 (29.9)

655 (29.5)

565 (30.4)

 

664 (30.3)

556 (29.4)

 
 

46-55

1048 (25.7)

617 (27.8)

431 (23.2)

 

525 (24.0)

523 (27.7)

 
 

56-65

674 (16.5)

388 (17.5)

286 (15.4)

 

324 (14.8)

350 (18.5)

 
 

> = 66

360 (8.8)

234 (10.5)

126 (6.8)

 

161 (7.3)

199 (10.5)

 

Ethnicity, No. (%)

Han

3848 (94.3)

2107 (94.9)

1741 (93.7)

.08

1774 (94.0)

2074 (94.7)

0.34

 

Minority

231 (5.7)

113 (5.1)

118 (6.3)

 

114 (6.0)

117 (5.3)

 

education, No. (%)

primary or less

759 (18.6)

444 (20.0)

315 (16.9)

.001

362 (19.2)

397 (18.1)

0.25

 

Junior high school

1482 (36.3)

825 (37.2)

657 (35.3)

 

705 (37.3)

777 (35.5)

 
 

High school

1384 (33.9)

735 (33.1)

649 (34.9)

 

625 (33.1)

759 (34.6)

 
 

College or above

454 (11.1)

216 (9.7)

238 (12.8)

 

196 (10.4)

258 (11.8)

 

Dibao, No. (%)

yes

3283 (80.5)

821 (37.0)

559 (30.1)

<.001

691 (36.6)

689 (31.4)

<.001

 

no

537 (13.2)

1399 (63.0)

1300 (69.9)

 

1197 (63.4)

1502 (68.6)

 

marriage, No. (%)

Married

257 (6.3)

1741 (78.5)

1542 (83.0)

 

1460 (77.4)

1823 (83.2)

<.001

 

Divorced

1286 (31.5)

407 (18.3)

130 (7.0)

.001

374 (19.8)

163 (7.4)

 
 

Never-married

1458 (35.7)

71 (3.2)

186 (10.0)

 

53 (2.8)

204 (9.3)

 

employment, No. (%)

retired

1335 (32.7)

750 (33.8)

536 (28.8)

<.001

645 (29.4)

641 (34.0)

<0.01

 

unemployed

1380 (33.8)

789 (35.5)

669 (36.0)

 

802 (36.6)

656 (34.7)

 
 

employed

2699 (66.2)

681 (30.7)

654 (35.2)

 

744 (34.0)

591 (31.3)

 

health insurance, No. (%)

no

2445 (59.9)

1331 (60.0)

1114 (59.9)

.98

1081 (57.3)

1364 (62.3)

.001

 

yes

1634 (40.1)

889 (40.0)

745 (40.1)

 

807 (42.7)

827 (37.7)

 

CES-D Baseline, No. (%)

<16

1742 (42.7)

917 (41.3)

825 (44.4)

.08

974 (44.5)

768 (40.7)

.06

 

16-20

766 (18.8)

416 (18.7)

350 (18.8)

 

405 (18.5)

361 (19.1)

 
 

21-25

684 (16.8)

373 (16.8)

311 (16.7)

 

364 (16.6)

320 (16.9)

 
 

≥26

887 (21.7)

514 (23.2)

373 (20.1)

 

448 (20.4)

439 (23.3)

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