Table 3.
The results of multiple factor logistic regression analysis
| Variables | Estimate (b) | Standard Error | Chi-Square | Pr > ChiSq | OR | 95% Wald CL (LL-HL) | |
|---|---|---|---|---|---|---|---|
| Intercept | -1.5183 | 0.2507 | 36.6908 | <0001 | |||
| Patient referred to the upper level institutions | 0.7116 | 0.1522 | 21.8706 | <0001 | 2.037 | 1.512 | 2.745 |
| HC is owned by the government | 0.7001 | 0.1608 | 18.9623 | <0001 | 2.014 | 1.47 | 2.76 |
| New physician with postgraduate certificate | 0.6541 | 0.2579 | 6.4339 | 0.0112 | 1.923 | 1.16 | 3.189 |
| Total member of current staff | 0.4558 | 0.2226 | 4.1908 | 0.0406 | 1.577 | 1.02 | 2.44 |
| Nurse receiving the community nursing training | 0.4447 | 0.1866 | 5.6811 | 0.0171 | 1.56 | 1.082 | 2.249 |
| Biochemistry analysis instrument | 0.4384 | 0.1571 | 7.7855 | 0.0053 | 1.55 | 1.139 | 2.109 |
| Dentist | 0.3835 | 0.1632 | 5.5232 | 0.0188 | 1.467 | 1.066 | 2.02 |
| Temporary member of staff | 0.3596 | 0.1451 | 6.1453 | 0.0132 | 1.433 | 1.078 | 1.904 |
| Percentage of health insurance in total income | 0.3162 | 0.1588 | 3.9653 | 0.0464 | 1.372 | 1.005 | 1.873 |
| Rehabilitation physiotherapy facilities | 0.3115 | 0.1538 | 4.1023 | 0.0428 | 1.365 | 1.01 | 1.846 |
| Percentage of women in childbearing age in total population served | 0.2457 | 0.1245 | 3.8933 | 0.0485 | 1.278 | 1.002 | 1.632 |
| Physician with 2-year education certificate | -0.2372 | 0.1579 | 2.2569 | 0.133 | 0.789 | 0.579 | 1.075 |
| Percentage of pregnant women in total population served | -0.2762 | 0.1356 | 4.1501 | 0.0416 | 0.759 | 0.582 | 0.99 |
| House is owned by HC | -0.2815 | 0.1302 | 4.6745 | 0.0306 | 0.755 | 0.585 | 0.974 |
| HS not owned by HC, but receiving HC guide | -0.3375 | 0.1514 | 4.9696 | 0.0258 | 0.714 | 0.53 | 0.96 |
| Nurse with 3-year education certificate | -0.3387 | 0.1686 | 4.0377 | 0.0445 | 0.713 | 0.512 | 0.992 |
| Physician with less than two year education certificate | -0.3498 | 0.1588 | 4.8493 | 0.0277 | 0.705 | 0.516 | 0.962 |
| HC is a unit of corporate sole | -0.4391 | 0.1478 | 8.8288 | 0.003 | 0.645 | 0.483 | 0.861 |
| Nurse with 2-year education certificate | -0.48 | 0.161 | 8.8829 | 0.0029 | 0.619 | 0.451 | 0.848 |
| Percentage of people with pension in total population served | -0.5643 | 0.144 | 15.3659 | <0001 | 0.569 | 0.429 | 0.754 |
| Percentage of fiscal income in total income | -0.6278 | 0.1382 | 20.6426 | <0001 | 0.534 | 0.407 | 0.7 |
| Both the outpatient and inpatient are designated | -0.6308 | 0.2112 | 8.9166 | 0.0028 | 0.532 | 0.352 | 0.805 |
| Clinical doctors | -0.9034 | 0.2118 | 18.1933 | <0001 | 0.405 | 0.268 | 0.614 |
Notes: For every numerical variable: 0 = lower than the average mean value; 1 = higher than the average mean value; For every categorical variable: 0 = no 1 = yes; CL: confident limits; LL: Low Limit; HL: High Limit; OR > 1: it means that this variable is a protective factor for the HC with high OW or a factor to increase the OW of HC with high OW comparing to the HC with low OW; OR < 1: it means that this variable is a risk factor for the HC with high OW or a factor to decrease the OW of HC with high OW comparing to the HC with low OW.