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