Table 1 Demographic and clinical characteristics of the two study groups before and after stabilized inverse probability of treatment weighting (IPTW)
Before IPTW | After IPTW | |||||
|---|---|---|---|---|---|---|
Shunt surgery (n = 376) | No-shunt surgery (n = 1677) | SMD | Shunt surgery (n = 375.0) | No-shunt surgery(n = 1677.4) | SMD | |
Age (year) | ||||||
Average | 73.69 ± 7.18 | 76.54 ± 7.62 | 0.385 | 75.53 ± 7.41 | 76.14 ± 7.61 | 0.081 |
60–69 | 108 (28.7%) | 343 (20.5%) | 0.193 | 81 (21.6%) | 367 (21.9%) | 0.008 |
70–79 | 185 (49.2%) | 704 (42%) | 0.145 | 166 (44.3%) | 728 (43.4%) | 0.018 |
80 + | 83 (22.1%) | 630 (37.6%) | 0.344 | 128 (34.1%) | 582 (34.7%) | 0.012 |
Sex | ||||||
Male | 215 (57.2%) | 953 (56.8%) | 0.007 | 210 (56.1%) | 954 (56.9%) | 0.016 |
Female | 161 (42.8%) | 724 (43.2%) | 0.007 | 165 (43.9%) | 723 (43.1%) | 0.016 |
Monthly income (NTD) | ||||||
≤ 15839 | 59 (15.7%) | 405 (24.2%) | 0.213 | 83 (22.2%) | 379 (22.6%) | 0.010 |
15840–24999 | 222 (59%) | 906 (54%) | 0.101 | 209 (55.6%) | 922 (55%) | 0.013 |
25000–39999 | 53 (14.1%) | 207 (12.3%) | 0.052 | 47 (12.6%) | 213 (12.7%) | 0.004 |
≥ 40000 | 42 (11.2%) | 159 (9.5%) | 0.056 | 36 (9.6%) | 164 (9.8%) | 0.004 |
Incidence year | ||||||
2001–2006 | 114 (30.3%) | 535 (31.9%) | 0.034 | 119 (31.7%) | 531 (31.6%) | 0.002 |
2007–2012 | 115 (30.6%) | 606 (36.1%) | 0.118 | 133 (35.5%) | 588 (35.1%) | 0.009 |
2013–2018 | 147 (39.1%) | 536 (32%) | 0.150 | 123 (32.8%) | 558 (33.3%) | 0.011 |
Comorbidity | ||||||
CCI score | 2.06 ± 1.8 | 1.78 ± 1.8 | 0.155 | 1.85 ± 1.69 | 1.83 ± 1.80 | 0.011 |
Coronary artery disease | 54 (14.4%) | 309 (18.4%) | 0.110 | 66 (17.6%) | 296 (17.7%) | 0.002 |
Chronic kidney disease | 31 (8.2%) | 136 (8.1%) | 0.005 | 29 (7.7%) | 137 (8.2%) | 0.017 |
Hypertension | 261 (69.4%) | 1027 (61.2%) | 0.172 | 231 (61.6%) | 1052 (62.7%) | 0.024 |
Type II diabetes mellitus | 105 (27.9%) | 499 (29.8%) | 0.040 | 109 (29.1%) | 493 (29.4%) | 0.007 |