Table 1 Preoperative Characteristics of study participants stratified by BMI
From: The effects of body mass index on outcomes for patients undergoing surgical aortic valve replacement
Independent Variables | BMI < 20 (N = 108) | BMI 20–24.9 (N = 972) | BMI 25–29.9 (N = 1721) | BMI 30–34.9 (N = 1199) | BMI ≥ 35 (N = 780) | P value |
|---|---|---|---|---|---|---|
Age (years) | 60.1 ± 20.3 | 64.6 ± 16.7 | 66.2 ± 14.0 | 66.3 ± 12.2 | 64.3 ± 11.4 | < 0.001 |
Male (%) | 53(49.1) | 647(66.6) | 1304(75.8) | 884(73.7) | 476(61.0) | < 0.001 |
Chronic Lung Disease (%) | 38(35.2) | 309(31.8) | 510(29.6) | 379(31.6) | 283(36.3) | 0.021 |
Chronic Renal Insufficiency (%) | 10(9.3) | 94(9.7) | 176(10.2) | 135(11.3) | 91(11.7) | 0.586 |
Hypertension (%) | 60(55.6) | 576(59.3) | 1193(69.3) | 912(76.1) | 645(82.7) | < 0.001 |
Hyperlipidemia (%) | 60(55.6) | 646(66.5) | 1272(73.9) | 944(78.7) | 612(78.5) | < 0.001 |
Diabetes(%) | 10(9.3) | 134(13.8) | 320(18.6) | 372(31.0) | 315(40.4) | < 0.001 |
Current smoker(%) | 20(18.5) | 147(15.1) | 528(30.7) | 184(15.3) | 104(13.3) | 0.012 |
Prior MI (%) | 1(0.9) | 24(2.5) | 80(4.6) | 64(5.3) | 41(5.3) | 0.003 |
Prior PCI (%) | 7(6.5) | 47(4.8) | 130(7.6) | 121(10.1) | 70(9.0) | < 0.001 |
Prior CABG (%) | 4(3.7) | 34(3.5) | 71(4.1) | 66(5.5) | 23(2.9) | 0.050 |
PVD (%) | 2(1.9) | 49(5.0) | 68(4.0) | 53(4.4) | 19(2.4) | 0.048 |
CVD (%) | 7(6.5) | 106(10.9) | 180(10.5) | 99(8.3) | 65(8.3) | 0.074 |
Dialysis (%) | 4(3.7) | 19(2.0) | 14(0.8) | 12(1.0) | 9(1.2) | 0.012 |
Malignancy (%) | 2(1.9) | 34(3.5) | 61(3.5) | 52(4.3) | 28(3.6) | 0.617 |
Liver Disease (%) | 1(0.9) | 10(1.0) | 20(1.2) | 6(0.5) | 6(0.8) | 0.433 |
GI disease (%) | 20(18.5) | 147(15.1) | 281(16.3) | 184(15.3) | 104(13.3) | 0.335 |
Ejection Fraction | 0.094 | |||||
< 20% | 2(1.9) | 13(1.3) | 19(1.1) | 9(0.8) | 8(1.0) | |
20–34% | 10(9.3) | 88(9.1) | 134(7.8) | 91(7.6) | 54(6.9) | |
35–50% | 28(25.9) | 196(20.2) | 354(20.6) | 213(17.8) | 127(16.3) | |
> 50% | 63(58.3) | 634(65.2) | 1140(66.2) | 847(70.6) | 562(72.1) | |
Unavailable | 5(4.6) | 41(4.2) | 74(4.3) | 39(3.3) | 29(3.7) |