Table 4. Simple and multiple linear regression analyses for the hospital length of stay in hospitalized CAP in Korea.
| Characteristics | Simple linear | Multiple linear | |||||
|---|---|---|---|---|---|---|---|
| β | Exp(β) (95% CI) | P value | β | Exp(β) (95% CI) | P value | ||
| Male sex | −0.452 | 0.636 (0.572–0.708) | < 0.001 | −0.273 | 0.761 (0.658–0.881) | < 0.001 | |
| Hospital types | |||||||
| Hospital | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | |
| General hospital | 0.358 | 1.430 (1.207–1.695) | < 0.001 | 0.536 | 1.709 (1.411–2.070) | < 0.001 | |
| Tertiary hospital | −0.421 | 0.656 (0.546–0.788) | < 0.001 | −0.267 | 0.766 (0.571–1.026) | 0.074 | |
| CCI scores | 0.324 | 1.382 (1.343–1.423) | < 0.001 | 0.175 | 1.190 (1.148–1.233) | < 0.001 | |
| CURB-65 scores | 1.369 | 3.930 (3.686–4.190) | < 0.001 | 1.280 | 3.551 (3.290–3.829) | < 0.001 | |
| CAP scores | 0.0002 | 1.046 (1.021–1.072) | < 0.001 | −0.164 | 0.866 (0.813–0.922) | < 0.001 | |
| QA | |||||||
| 1st QA | Ref. | Ref. | Ref. | Ref. | Ref. | Ref. | |
| 2nd QA | −0.823 | 0.439 (0.386–0.499) | < 0.001 | −0.528 | 0.590 (0.491–0.708) | < 0.001 | |
| 3rd QA | −0.719 | 0.487 (0.423–0.560) | < 0.001 | −0.549 | 0.577 (0.476–0.700) | < 0.001 | |
Exp(β) = exponentiation coefficient β, CI = confidence interval, CCI = Charlson comorbidity index, CAP = community-acquired pneumonia, QA = quality assessment.