Table 1.
Demographic variables by galectin-3 quartile (Q) in the cohort random sample*
| Galectin-3 quartile | |||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | P value | |
| Sample size | |||||
| Unweighted | 220 | 237 | 222 | 268 | |
| Weighted | 6636 | 6502 | 6326 | 6401 | |
| Age (mean, years) | 61.0 | 64.5 | 65.5 | 68.0 | <0.001 |
| Race (% white) | 70 | 59 | 56 | 52 | 0.003 |
| Sex (% male) | 58 | 42 | 42 | 36 | <0.001 |
| Physical activity frequency (%) | |||||
| None | 23 | 35 | 34 | 41 | 0.01 |
| 1–3 times per week | 41 | 33 | 41 | 32 | |
| 4+ times per week | 36 | 32 | 25 | 28 | |
| BMI (mean, kg/m2) | 27.8 | 29.2 | 30.6 | 29.6 | <0.001 |
| History of heart disease (% yes) | 11 | 14 | 16 | 24 | 0.007 |
| Hypertension (% yes) | 46 | 59 | 63 | 75 | <0.001 |
| SBP (mean, mmHg) | 125 | 127 | 128 | 129 | 0.002 |
| Diabetes (% yes) | 7 | 22 | 26 | 30 | <0.001 |
| LVH by ECG (% yes) | 5 | 9 | 7 | 10 | 0.24 |
| Atrial fibrillation | 6 | 12 | 10 | 8 | 0.36 |
| Income (%) <$20 000 | 11 | 15 | 15 | 22 | <0.001 |
| Education (%) <high school | 6 | 11 | 11 | 18 | 0.001 |
BMI, body mass index; ECG, electrocardiography; LVH, left ventricular hypertrophy; SBP, systolic blood pressure, mmHg.
*
Analyses weighted to reflect distributions in the analytic cohort.