Table 6 Subgroup analysis for all-cause mortality at longest follow-up for AVR patients, multivariable Cox regression analysis
From: The effects of body mass index on outcomes for patients undergoing surgical aortic valve replacement
Events | No. at risk | Hazard ratio | 95% CI | P value | ||
|---|---|---|---|---|---|---|
Lower | Upper | |||||
SUBGROUP ANALYSIS | ||||||
Female (N = 1416) | ||||||
20–25 (Normal BMI) | 73 | 325 | Reference | |||
< 20 | 17 | 55 | 1.820 | 1.056 | 3.138 | 0.031 |
25–30 | 89 | 417 | 0.919 | 0.670 | 1.260 | 0.599 |
30–35 | 55 | 315 | 0.765 | 0.532 | 1.101 | 0.150 |
> =35 | 68 | 304 | 1.055 | 0.733 | 1.517 | 0.774 |
Male (N = 3364) | ||||||
20–25 (Normal BMI) | 156 | 647 | Reference | |||
< 20 | 12 | 53 | 1.111 | 0.615 | 2.008 | 0.728 |
25–30 | 288 | 1304 | 1.017 | 0.835 | 1.239 | 0.867 |
30–35 | 182 | 884 | 0.950 | 0.761 | 1.185 | 0.648 |
> =35 | 91 | 476 | 1.090 | 0.830 | 1.431 | 0.535 |
Severe Aortic stenosis (N = 3002) | ||||||
20–25 (Normal BMI) | 172 | 605 | Reference | |||
< 20 | 21 | 61 | 1.548 | 0.978 | 2.449 | 0.062 |
25–30 | 276 | 1064 | 0.958 | 0.789 | 1.163 | 0.663 |
30–35 | 175 | 762 | 0.906 | 0.727 | 1.130 | 0.381 |
> =35 | 127 | 510 | 1.122 | 0.875 | 1.440 | 0.364 |
Severe Aortic Insufficiency(N = 905) | ||||||
20–25 (Normal BMI) | 40 | 225 | Reference | |||
< 20 | 3 | 36 | 0.649 | 0.197 | 2.138 | 0.477 |
25–30 | 60 | 359 | 1.230 | 0.813 | 1.861 | 0.326 |
30–35 | 31 | 181 | 0.982 | 0.602 | 1.602 | 0.942 |
> =35 | 19 | 104 | 1.456 | 0.818 | 2.590 | 0.201 |