Table 2

Descriptive characteristics of study population by health insurance status in two wave follow-up interviews
7 months later 20 months later
Non-insurance Insurance to none Non to insurance Insurance Non-insurance Insurance to none Non to Insurance Insurance
Sample 1170 (52.7) 162 (7.3) 164 (7.4) 724 (32.6) 445 (23.6) 155 (8.2) 636 (33.7) 652 (34.5)
city, No. (%) Lanzhou 896 (55.9) 117 (7.3) 133 (8.3) 457 (28.5) 366 (26.3) 127 (9.1) 505 (36.4) 391 (28.1)
Baiyin 274 (44.4) 45 (7.3) 31 (5.0) 267 (43.3) 79 (15.8) 28 (5.6) 131 (26.3) 261 (52.3)
sex, No. (%) Male 467 (43.4) 83 (7.7) 79 (7.3) 447 (41.5) 205 (20.0) 90 (8.8) 289 (28.1) 443 (43.1)
Female 703 (61.5) 79 (6.9) 85 (7.4) 277 (24.2) 240 (27.9) 65 (7.5) 347 (40.3) 209 (24.3)
age, No. (%) 16-35 219 (67.2) 18 (5.5) 20 (6.1) 69 (21.2) 71 (27.3) 16 (6.2) 109 (41.9) 64 (24.6)
36-45 405 (61.8) 53 (8.1) 38 (5.8) 159 (24.3) 166 (29.9) 27 (4.9) 203 (36.5) 160 (28.8)
46-55 306 (49.6) 38 (6.2) 55 (8.9) 218 (35.3) 111 (21.2) 49 (9.4) 172 (32.9) 191 (36.5)
56-65 149 (38.4) 41 (10.6) 28 (7.2) 170 (43.8) 56 (16.0) 38 (10.9) 100 (28.6) 156 (44.6)
≥66 91 (38.9) 12 (5.1) 23 (9.8) 108 (46.2) 41 (20.6) 25 (12.6) 52 (26.1) 81 (40.7)
nationality, No. (%) Han 1096 (52.0) 157 (7.5) 156 (7.4) 698 (33.1) 409 (23.1) 145 (8.2) 597 (33.7) 623 (35.1)
Minority 74 (65.5) 5 (4.4) 8 (7.1) 26 (23.0) 36 (31.6) 10 (8.8) 39 (34.2) 29 (25.4)
education, No. (%) primary school or less 279 (62.8) 25 (5.6) 35 (7.9) 105 (23.6) 107 (29.6) 25 (6.9) 139 (38.4) 91 (25.1)
Junior high school 470 (57.0) 56 (6.8) 62 (7.5) 237 (28.7) 171 (24.3) 48 (6.8) 256 (36.3) 230 (32.6)
High school 358 (48.7) 58 (7.9) 52 (7.1) 267 (36.3) 145 (23.2) 55 (8.8) 201 (32.2) 224 (35.8)
College or more 63 (29.2) 23 (10.6) 15 (6.9) 115 (53.2) 22 (11.2) 27 (13.8) 40 (20.4) 107 (54.6)
marriage, No. (%) Married 851 (48.9) 132 (7.6) 125 (7.2) 633 (36.4) 306 (21.0) 127 (8.7) 453 (31.0) 574 (39.3)
Divorced 264 (64.9) 23 (5.7) 34 (8.4) 86 (21.1) 115 (30.7) 26 (7.0) 162 (43.3) 71 (19.0)
Never-married 54 (76.1) 7 (9.9) 5 (7.0) 5 (7.0) 24 (45.3) 2 (3.8) 20 (37.7) 7 (13.2)
employment, No. (%) Retired 236 (31.5) 67 (8.9) 66 (8.8) 381 (50.8) 87 (13.6) 77 (12.0) 153 (23.9) 324 (50.5)
Unemployed 655 (83.0) 38 (4.8) 41 (5.2) 55 (7.0) 246 (37.5) 28 (4.3) 332 (50.6) 50 (7.6)
employed 279 (41.0) 57 (8.4) 57 (8.4) 288 (42.3) 112 (19.0) 50 (8.5) 151 (25.5) 278 (47.0)
Dibao, No. (%) Yes 667 (81.2) 41 (5.0) 50 (6.1) 63 (7.7) 258 (37.3) 28 (4.1) 331 (47.9) 74 (10.7)
No 503 (36.0) 121 (8.6) 114 (8.1) 661 (47.2) 187 (15.6) 127 (10.6) 305 (25.5) 578 (48.3)
Life events, No. (%) No 906 (53.0) 123 (7.2) 123 (7.2) 556 (32.6) 334 (23.3) 121 (8.4) 488 (34.1) 489 (34.1)
1 150 (50.8) 18 (6.1) 22 (7.5) 105 (35.6) 62 (23.7) 22 (8.4) 87 (33.2) 91 (34.7)
≥2 114 (52.5) 21 (9.7) 19 (8.8) 63 (29.0) 49 (25.3) 12 (6.2) 61 (31.4) 72 (37.1)
smoke, No. (%) No 857 (55.0) 117 (7.5) 118 (7.6) 466 (29.9) 309 (24.7) 108 (8.6) 450 (35.9) 386 (30.8)
Yes 313 (47.3) 45 (6.8) 46 (6.9) 258 (39.0) 136 (21.4) 47 (7.4) 186 (29.3) 266 (41.9)
drink, No. (%) No 1136 (54.0) 153 (7.3) 156 (7.4) 660 (31.4) 434 (24.4) 147 (8.3) 611 (34.3) 588 (33.0)
Yes 33 (29.5) 9 (8.0) 7 (6.3) 63 (56.3) 11 (10.5) 8 (7.6) 24 (22.9) 62 (59.0)
Physical activity, No. (%) yes 355 (45.8) 63 (8.1) 47 (6.1) 310 (40.0) 127 (19.5) 68 (10.5) 193 (29.7) 262 (40.3)
No 815 (56.4) 99 (6.9) 117 (8.1) 414 (28.7) 318 (25.7) 87 (7.0) 443 (35.8) 390 (31.5)
BMI, No. (%) <19 181 (66.8) 19 (7.0) 16 (5.9) 55 (20.3) 63 (27.3) 18 (7.8) 101 (43.7) 49 (21.2)
19-24 801 (51.1) 113 (7.2) 117 (7.5) 538 (34.3) 296 (22.5) 109 (8.3) 435 (33.1) 476 (36.2)
≥25 188 (49.5) 30 (7.9) 31 (8.2) 131 (34.5) 86 (25.2) 28 (8.2) 100 (29.3) 127 (37.2)
4-weeks disease, No. (%) No 779 (50.6) 102 (6.6) 113 (7.3) 547 (35.5) 301 (22.9) 105 (8.0) 436 (33.2) 470 (35.8)
acute disease in 4 weeks 67 (59.8) 10 (8.9) 10 (8.9) 25 (22.3) 29 (27.9) 5 (4.8) 32 (30.8) 38 (36.5)
acute disease > 4 weeks 21 (63.6) 4 (12.1) 3 (9.1) 5 (15.2) 9 (31.0) 2 (6.9) 14 (48.3) 4 (13.8)
Chronic 293 (56.6) 42 (8.1) 37 (7.1) 146 (28.2) 100 (23.5) 39 (9.2) 150 (35.2) 137 (32.2)

Tian et al.

Tian et al. BMC Psychiatry 2012 12:151   doi:10.1186/1471-244X-12-151

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