Table A-2. Determinants of Hospital Survival: Probit Analysis.
| Simple | Multivariate | |
|---|---|---|
|
|
|
|
| Acute Physiology Score | .0729** (10.78) |
.0853 ** (9.64) |
| Age over 40 (in years) | — | .033 ** (5.54) |
| Sex (Female=1) | — | .237 (1.53) |
| Smoking History (yes=1) | — | .473 ** (2.93) |
| Drinking History (yes=1) | — | -.244 (.179) |
| Preadmission Health and Operative Status1 | ||
| Type B Post-Operative | — | -.404 (1.37) |
| Type C Post-Operative | — | -.369 (1.03) |
| Type D Post-Operative | — | -.427 (1.26) |
| Type A Non-Operative | — | .432 (1.28) |
| Type B Non-Operative | — | -.048 (.16) |
| Type C Non-Operative | — | -.369 (1.05) |
| Type D Non-Operative | — | .708 * (2.22) |
| Principal Reason for Intensive Care2 | ||
| Cardiovascular | — | -.329 (1.66) |
| Respiratory | — | -.851 ** (3.07) |
| Gastrointestinal | — | -.111 (.42) |
| Renal | — | -.830 (1.55) |
| Hematologic | — | 1.18 (1.07) |
| Metabolic | — | -1.83 ** (3.63) |
| Intercept | -2.13 ** (15.82) |
-2.82 ** (9.22) |
| Percent of Cases Correctly Classified | 85% | 88% |
| N | 613 | 613 |
Note: Asymptotic t-ratios are in parentheses: significance levels are approximate.
*
p<.05.
**
p<.01.
1
The reference group for preadmission health type is Type A Post-operative.
2
The reference group for systems is Neurologic.