Table 1.
Baseline characteristics
| BRI | P value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total | Q1 | Q2 | Q3 | Q4 | |||||||
| Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | ||
| n | 40 959 | 10 241 | 10 239 | 10 240 | 10 239 | ||||||
| Age, years | 47·23 | 19·16 | 36·14 | 17·39 | 47·23 | 18·39 | 52·36 | 18·18 | 53·20 | 17·69 | <0·001 |
| n | % | n | % | n | % | n | % | n | % | ||
| Gender-female | 20 431 | 49·9 | 4754 | 46·4 | 4573 | 44·7 | 4785 | 46·7 | 6319 | 61·7 | <0·001 |
| Race | <0·001 | ||||||||||
| Mexican American | 7767 | 19·0 | 1359 | 13·3 | 1986 | 19·4 | 2265 | 22·1 | 2157 | 21·1 | |
| Other Hispanic | 3042 | 7·4 | 584 | 5·7 | 812 | 7·9 | 835 | 8·2 | 811 | 7·9 | |
| Non-Hispanic White | 18 483 | 45·1 | 4709 | 46·0 | 4611 | 45·0 | 4615 | 45·1 | 4548 | 44·4 | |
| Non-Hispanic Black | 8749 | 21·4 | 2524 | 24·6 | 1921 | 18·8 | 1945 | 19·0 | 2359 | 23·0 | |
| Other | 2918 | 7·1 | 1065 | 10·4 | 909 | 8·9 | 580 | 5·7 | 364 | 3·6 | |
| Smoking | 17 804 | 46·8 | 3880 | 45·7 | 4499 | 46·3 | 4785 | 48·2 | 4640 | 46·7 | 0·005 |
| Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | ||
| BMI | 28·42 | 6·55 | 21·97 | 2·47 | 25·90 | 2·48 | 29·33 | 2·91 | 36·51 | 6·08 | <0·001 |
| Systolic blood pressure, mmHg | 123·95 | 19·23 | 116·56 | 16·47 | 122·94 | 18·69 | 127·29 | 19·61 | 129·03 | 19·56 | <0·001 |
| Diastolic blood pressure, mmHg | 69·83 | 13·27 | 67·62 | 11·79 | 69·90 | 13·26 | 70·73 | 13·82 | 71·10 | 13·84 | <0·001 |
| eGFR, mg/min/1·73 m2 | 88·61 | 26·72 | 95·66 | 25·49 | 88·43 | 26·03 | 85·36 | 25·94 | 85·09 | 28·00 | <0·001 |
| Total cholesterol, mmol/l | 5·04 | 1·10 | 4·68 | 0·99 | 5·13 | 1·10 | 5·21 | 1·10 | 5·11 | 1·11 | <0·001 |
| HDL cholesterol, mmol/l | 1·35 | 0·40 | 1·52 | 0·42 | 1·38 | 0·41 | 1·29 | 0·38 | 1·23 | 0·34 | <0·001 |
| n | % | n | % | n | % | n | % | n | % | ||
| Comorbidities | |||||||||||
| Hypertension | 17 130 | 41·9 | 1839 | 18·0 | 3655 | 35·7 | 5158 | 50·4 | 6478 | 63·3 | <0·001 |
| CVD | 3666 | 9·7 | 339 | 4·1 | 755 | 7·8 | 1168 | 11·8 | 1404 | 14·2 | <0·001 |
| Diabetes | 5824 | 14·2 | 259 | 2·5 | 903 | 8·8 | 1653 | 16·1 | 3009 | 29·4 | <0·001 |
| Treatment | |||||||||||
| Antihypertensive drugs | 10 433 | 25·5 | 786 | 7·7 | 2078 | 20·3 | 3158 | 30·8 | 4411 | 43·1 | <0·001 |
| Hypoglycaemic agents | 3469 | 8·5 | 145 | 1·4 | 498 | 4·9 | 946 | 9·2 | 1880 | 18·4 | <0·001 |
| Lipid-lowering drugs | 5321 | 13·0 | 353 | 3·4 | 1113 | 10·9 | 1714 | 16·7 | 2141 | 20·9 | <0·001 |
| Antiplatelet drugs | 720 | 1·8 | 61 | 0·6 | 140 | 1·4 | 224 | 2·2 | 295 | 2·9 | <0·001 |
| Outcomes | |||||||||||
| CVD mortality | 985 | 2·4 | 115 | 1·1 | 222 | 2·2 | 331 | 3·2 | 317 | 3·1 | <0·001 |
| All-cause mortality | 4715 | 11·5 | 706 | 6·9 | 1139 | 11·1 | 1393 | 13·6 | 1477 | 14·4 | <0·001 |
eGFR, estimated glomerular filtration rate; BRI, body roundness index.
Q1:0·68∼3·58, Q2:3·59∼4·87, Q3:4·88∼6·38, Q4:6·39∼23·48.
Values are mean with sd or number with percent.