Table 5.
Multivariable linear regression models of the association between SIRI and length of stay in hospital and length of stay in ICU in acute myocardial infarction patients.
| Variable | Unadjusted | Model 1 | Model 2 | |||
|---|---|---|---|---|---|---|
| crude. Coefficient-95CI | crude. p-value | adj. Coefficient-95CI | adj. p-value | adj. Coefficient-95CI | adj. p-value | |
| Length of stay in hospital | ||||||
| ln-SIRI | −0.178 (−0.289–−0.067) | 0.0016 | −0.182 (−0.293–−0.07) | 0.0014 | −0.174 (−0.298–−0.049) | 0.0063 |
| SIRI quartile | ||||||
| Q1 | 0(Ref) | 0(Ref) | 0(Ref) | |||
| Q2 | 0.832 (0.082–1.583) | 0.0298 | 0.84 (0.087–1.592) | 0.0288 | 0.334 (−0.467–1.135) | 0.4135 |
| Q3 | −2.178 (−2.928–−1.428) | <0.001 | −2.216 (−2.97–−1.462) | <0.001 | −1.999 (−2.834–−1.165) | <0.001 |
| Q4 | 0.161 (−0.59–0.911) | 0.6747 | 0.152 (−0.604–0.908) | 0.6932 | −0.126 (−0.961–0.709) | 0.7669 |
| Length of stay in ICU | ||||||
| ln-SIRI | 0.119 (0.059–0.18) | 0.0001 | 0.127 (0.066–0.188) | <0.001 | 0.078 (0.009–0.146) | 0.0277 |
| SIRI quartile | ||||||
| Q1 | 0(Ref) | 0(Ref) | 0(Ref) | |||
| Q2 | 1.042 (0.632–1.452) | <0.001 | 1.080 (0.670–1.491) | <0.001 | 0.685 (0.243–1.128) | 0.0024 |
| Q3 | −0.208 (−0.618–0.202) | 0.3209 | −0.165 (−0.576–0.247) | 0.4327 | −0.182 (−0.644–0.279) | 0.4392 |
| Q4 | 1.431 (1.021–1.841) | <0.001 | 1.489 (1.077–1.902) | <0.001 | 0.989 (0.528–1.451) | <0.001 |
The adjusted variables were consistent with Models in the multivariate Cox regression analysis.