Table 3.
Subgroup analysis of clinical characteristics according to BMI.
| BMI<18.5 (n= 98) | 18.5≤BMI<24 (n= 799) | 24≤BMI<28 (n= 539) | BMI≥28 (n= 165) | All | P value | |
|---|---|---|---|---|---|---|
| Male (%) | 32 (32.65) | 382 (47.81) | 327 (60.67) | 95 (57.58) | 836 (52.22) | 0.141 |
| Age (mean ±SD) | 46.69±16.37 | 53.00±13.73 | 57.00±11.61 | 55.00±11.48 | 54.00±13.24 | 0.030 |
| BMI (mean ±SD) | 17.22±0.95 | 21.61±1.50 | 25.68±1.14 | 30.35±2.20 | 23.61±13.56 | 0.001 |
| Medical history | ||||||
| Diabetes (%) | 4 (4.08) | 64 (8.01) | 106 (19.67) | 37 (22.42) | 211 (13.18) | 0.841 |
| Hypertension (%) | 15 (15.31) | 45 (5.63) | 207 (38.40) | 86 (52.12) | 353 (22.05) | 0.008 |
| Hyperlipemia (%) | 14 (14.29) | 145 (18.15) | 134 (24.86) | 55 (33.33) | 348 (21.74) | 0.962 |
|
Previous surgery history (%) |
23 (23.47) | 169 (21.15) | 268 (49.72) | 80 (48.48) | 540 (33.73) | 0.201 |
| Smoking (%) | 12 (12.24) | 160 (20.03) | 150 (27.83) | 51 (30.91) | 373 (23.30) | 0.923 |
| NYHA class (%) | <0.001 | |||||
| Ⅰ | 13 (13.27) | 87 (10.89) | 99(18.37) | 17 (10.30) | 136 (8.49) | |
| Ⅱ | 25 (25.51) | 250 (31.29) | 180 (33.40) | 47 (28.48) | 502 (31.36) | |
| Ⅲ | 54 (55.10) | 429 (53.69) | 235 (43.60) | 84 (50.91) | 802 (50.09) | |
| Ⅳ | 6 (6.12) | 33 (4.13) | 25 (4.64) | 17 (10.20) | 81 (5.06) | |
| CAG (%) | 21 (21.43) | 278 (34.79) | 258 (47.87) | 78 (47.27) | 635 (39.66) | 0.255 |
| AKI (%) | 24 (24.49) | 150 (18.77) | 103 (19.11) | 41 (24.85) | 318 (19.86) | 0.147 |
BMI, body mass index; NYHA, New York Heart Association (classification); CAG: coronary arteriongraphy; AKI, acute kidney injury.