Table 3 Comparison of mortality after matching propensity scores

IPTW-logistic

1st cluster

2nd cluster

1.120 (1.014–1.415)

0.034

3rd cluster

1.673 (1.217–2.299)

0.002

4th cluster

2.327 (1.781–3.040)

< 0.001

5th cluster

2.138 (1.550–2.948)

< 0.001

IPTW-XGboost

1st cluster

2nd cluster

1.193 (1.011–1.408)

0.037

3rd cluster

1.640 (1.165–2.309)

0.005

4th cluster

2.348 (1.822–3.025)

< 0.001

5th cluster

1.925 (1.328–2.789)

0.001