Table 3 The addressing of nonlinear association between hemoglobin and 28-day mortality
OR, 95%CI, P value | |
|---|---|
Fitting model using binary logistic regression model | 0.99 (0.97, 1.01) 0.2176 |
Fitting model using two-piecewise linear model | |
Inflection points | 10.4, 12.8 |
<10.4 | 0.90 (0.87, 0.94) < 0.0001 |
≥10.4 to < 12.8 | 1.17 (1.00, 1.35) 0.0586 |
≥ 12.8 | 1.07 (1.01, 1.15) 0.0424 |
P for log likely ratio test | < 0.001 |