Table 3 Estimated odds ratios (OR) of death and 95% confidence interval using naive, propensity score matching, or IPTW approaches
Model | Adjustment in the original set | PS-matched sample | IPT-Weighted sample | ||
|---|---|---|---|---|---|
Covariates | OR (95%CI) p-value | No pairs | OR (95%CI) p-value | Sum of weights | OR (95%CI) p-value |
X1 = age | 0.44 (0.14;1.42) p = 0.17 | 22 | 0.27 (0.06;1.23) p = 0.091 | 327.5 | 0.39 (0.11;1.32) p = 0.13 |
X2 = beta2micro | 0.47 (0.15;1.47) p = 0.19 | 23 | 0.27 (0.05;1.41) p = 0.12 | 330.0 | 0.48 (0.14;1.65) p = 0.25 |
X3 = time to relapse | 0.24 (0.07;0.84) p = 0.026 | 23 | 0.19 (0.05;0.65) p = 0.0088 | 349.1 | 0.27 (0.08;0.92) p = 0.039 |
X1 + X2 | 0.49 (0.15;1.57) p = 0.23 | 22 | 0.48 (0.09;2.58) p = 0.39 | 317.9 | 0.41 (0.12;1.36) p = 0.15 |
X1 + X3 | 0.22 (0.06;0.85) p = 0.028 | 18 | 0.20 (0.03;1.17) p = 0.073 | 456.0 | 0.23 (0.05;1.00) p = 0.052 |
X2 + X3 | 0.26 (0.07;0.93) p = 0.039 | 23 | 0.19 (0.05;0.68) p = 0.011 | 340.8 | 0.26 (0.08;0.86) p = 0.028 |
X1 + X2 + X3 | 0.24 (0.06;0.93) p = 0.040 | 20 | 0.41 (0.08;2.1) p = 0.28 | 432.1 | 0.21 (0.05;0.86) p = 0.031 |