Table 3. Univariate and multivariate logistic regression analysis of the prevalence of using grade III hospital for inpatient and outpatient treatments.
| Inpatient (N = 372) | Outpatient (N = 1307) | |||||||
| N | n (%) | OR (P) | aOR (P) | N | n (%) | OR (P) | aOR (P) | |
| Gender | ||||||||
| Female | 187 | 85(45.5) | 1 | 1 | 678 | 213(31.4) | 1 | 1 |
| Male | 184 | 104(56.5) | 1.560(0.033) | 1.136(0.608) | 628 | 211(33.6) | 1.105(0.400) | 0.961(0.788) |
| Age | ||||||||
| 45–50 | 87 | 44(50.6) | 1 | 1 | 458 | 138(30.1) | 1 | 1 |
| 51–60 | 89 | 39(43.8) | 0.762(0.370) | 1.054(0.888) | 402 | 139(34.6) | 1.226(0.164) | 1.478(0.028) |
| 61–70 | 73 | 38(52.1) | 1.061(0.852) | 2.375(0.048) | 214 | 64(29.9) | 0.989(0.953) | 1.758(0.027) |
| >70 | 118 | 65(55.1) | 1.199(0.523) | 3.087(0.014) | 209 | 72(34.4) | 1.219(0.266) | 1.817(0.031) |
| Marital status | ||||||||
| Single/Divorced/Widowed | 53 | 22(41.5) | 1 | 1 | 139 | 39(28.1) | 1 | 1 |
| Married | 318 | 167(52.5) | 1.558(0.140) | 2.137(0.050) | 1166 | 385(33.0) | 1.264(0.239) | 1.785(0.025) |
| Education | ||||||||
| No schooling | 46 | 18(39.1) | 1 | 1 | 117 | 22(18.8) | 1 | 1 |
| Primary | 91 | 39(42.9) | 1.167(0.676) | 1.015(0.973) | 231 | 42(18.2) | 0.960(0.888) | 0.832(0.590) |
| Junior high | 85 | 43(50.6) | 1.593(0.211) | 1.343(0.534) | 332 | 89(26.8) | 1.582(0.086) | 1.148(0.681) |
| Senior high | 73 | 38(52.1) | 1.689(0.170) | 1.254(0.652) | 254 | 86(33.9) | 2.210(0.003) | 1.172(0.658) |
| Junior college and more | 74 | 50(67.6) | 3.241(0.003) | 1.653(0.376) | 364 | 185(50.8) | 4.463(0.000) | 1.854(0.103) |
| Occupation | ||||||||
| Governments | 43 | 28(65.1) | 1 | 1 | 217 | 96(44.2) | 1 | 1 |
| Enterprises | 38 | 24(63.2) | 0.918(0.854) | 1.066(0.902) | 204 | 93(45.6) | 1.056(0.781) | 1.724(0.016) |
| Farmers | 67 | 23(34.3) | 0.280(0.002) | 0.994(0.992) | 283 | 22(7.8) | 0.106(0.000) | 0.458(0.032) |
| Small private business | 14 | 8(57.1) | 0.714(0.592) | 0.785(0.748) | 72 | 17(23.6) | 0.390(0.002) | 0.843(0.640) |
| Others | 29 | 16(55.2) | 0.659(0.397) | 1.123(0.859) | 94 | 31(33.0) | 0.620(0.065) | 1.655(0.137) |
| Retired | 124 | 66(53.2) | 0.610(0.178) | 0.501(0.157) | 275 | 120(43.6) | 0.976(0.894) | 1.510(0.109) |
| Unemployed | 53 | 23(43.4) | 0.411(0.036) | 0.952(0.935) | 144 | 37(25.7) | 0.436(0.000) | 1.250(0.491) |
| Areas | ||||||||
| Rural areas | 146 | 51(34.9) | 1 | 1 | 533 | 75(14.1) | 1 | 1 |
| Urban areas | 225 | 138(61.3) | 2.955(0.000) | 2.366(0.025) | 773 | 349(45.1) | 5.026(0.000) | 2.088(0.001) |
| Regions | ||||||||
| Eastern | 183 | 96(52.5) | 1 | 1 | 711 | 214(30.1) | 1 | 1 |
| Central | 82 | 38(46.3) | 0.783(0.358) | 0.822(0.523) | 273 | 98(35.9) | 1.301(0.080) | 1.950(0.000) |
| Western | 107 | 55(51.4) | 0.959(0.862) | 1.008(0.979) | 323 | 112(34.7) | 1.233(0.142) | 1.641(0.004) |
| Use insurance | ||||||||
| No | 47 | 22(46.8) | 1 | 1 | 694 | 192(27.7) | 1 | 1 |
| Yes | 323 | 165(51.1) | 1.187(0.584) | 1.091(0.805) | 602 | 231(38.4) | 1.628(0.000) | 1.213(0.183) |
| Per capita income (thousand Yuan) | – | – | 1.016(0.002) | 1.012(0.028) | – | – | 1.014(0.000) | 1.011(0.000) |
N: number of subjects; n: number treated at grade III hospitals. OR (P): odds ratio (p-value) from univariate logistic regression; aOR (P): adjusted odds ratio (p-value) from multivariate logistic regression.