Table 1. Demographic characteristics of selected participants.
| Variable | White Men | Black Men | White Women | Black Women | P-value |
|---|---|---|---|---|---|
| Calibration set | N = 51 | N = 49 | N = 50 | N = 50 | |
| Age at baseline (yrs) | 75.7 (3.0) | 73.3 (2.7) | 74.3 (3.0) | 74.2 (3.1) | <0.01 |
| Height (cm) | 172.8 (5.8) | 172.1 (5.8) | 158.9 (5.2) | 158.9 (6.6) | <0.01 |
| Weight (kg) | 80.7 (12.8) | 77.5 (17.0) | 66.0 (12.6) | 71.6 (13.1) | <0.01 |
| BMI (kg/m2) | 27.1 (4.3) | 26.1 (5.3) | 26.2 (5.0) | 28.4 (4.9) | 0.07 |
| BMI Category (n) | |||||
| Underweight | 1 | 5 | 4 | 0 | |
| Normal | 16 | 16 | 14 | 10 | |
| Overweight | 22 | 16 | 26 | 26 | |
| Obese | 12 | 12 | 6 | 14 | |
| 6-year status (n) | |||||
| Living | 26 | 24 | 25 | 25 | |
| Deceased | 25 | 25 | 25 | 25 | |
| Sagittal diameter (cm) | 22.8 (3.2) | 21.9 (3.7) | 21.1 (2.8) | 22.7 (2.8) | 0.03 |
| Abdominal circ. (cm) | 101.1 (10.7) | 96.4 (14.8) | 96.4 (11.2) | 97.7 (12.3) | 0.18 |
| Validation set | N = 50 | N = 50 | N = 50 | N = 50 | |
| Age at baseline (yrs) | 74.7 (3.2) | 72.4 (2.6) | 74.0 (2.5) | 74.1 (2.8) | <0.01 |
| Height (cm) | 172.2 (5.4) | 172.7 (7.3) | 159.8 (5.4) | 159.8 (6.2) | <0.01 |
| Weight (kg) | 76.6 (9.8) | 78.7 (14.7) | 65.4 (13.5) | 72.6 (11.9) | <0.01 |
| BMI (kg/m2) | 25.8 (2.9) | 26.3 (4.3) | 25.7 (5.6) | 28.5 (4.9) | 0.08 |
| BMI Category (n) | |||||
| Underweight | 0 | 0 | 2 | 0 | |
| Normal | 24 | 20 | 22 | 14 | |
| Overweight | 20 | 22 | 16 | 20 | |
| Obese | 6 | 8 | 10 | 16 | |
| 6-year status (n) | |||||
| Living | 25 | 25 | 25 | 25 | |
| Deceased | 25 | 25 | 25 | 25 | |
| Sagittal diameter (cm) | 21.8 (2.6) | 22.2 (3.3) | 20.6 (3.4) | 22.4 (3.3) | 0.02 |
| Abdominal circ. (cm) | 98.9 (9.2) | 97.1 (12.5) | 97.2 (14.7) | 97.1 (11.9) | 0.86 |
400 total participants in a stratified case-control design were split evenly into training and validation sets. Continuous variables are reported as [mean (standard deviation)]. P-values reported are for overall group differences (one-way ANOVA).