Table 4 Ordinary least square and two-stage least square estimates of the outcomes with multiple imputation
90-day readmission | Barthel index at discharge | Log-transformed length of stay | ||||
|---|---|---|---|---|---|---|
Coefficient (95% CI) | P-value | Coefficient (95% CI) | P-value | Coefficient (95% CI) | P-value | |
Ordinary least square | −0.021 (−0.036, −0.005) | 0.0092 | −0.009 (−0.025, 0.007) | 0.2644 | −0.424 (−0.463, −0.386) | <0.0001 |
Two-stage least square | −0.053 (−0.159, 0.053) | 0.3269 | 0.059 (−0.057, 0.174) | 0.3188 | −0.934 (−1.156, −0.712) | <0.0001 |
F statistics | 247.8 | <0.0001 | 247.8 | <0.0001 | 247.8 | <0.0001 |
Hausman specification test | 0.559 | 0.217 | <0.0001 | |||