Table 1.
Baseline characteristics of SDA and non-SDA, North America, 2006–2012
| Factor | N | Non-SDA (mean ± SD) | N | SDA (mean ± SD) | Test statistic | p value |
|---|---|---|---|---|---|---|
| Male | 1881 | 33.3 % | 513 | 33.7 % | Χ 2(1) = 0.071 | 0.790 |
| Age | 5643 | 57.4 ± 12.8 | 1521 | 57.5 ± 13.8 | t(2276) = −0.387 | 0.699 |
| Married | 3493 | 73.7 % | 1121 | 75.5 % | Χ 2(3) = 5.896 | 0.117 |
| Smoker | 133 | 0.6 % | 9 | 2.6 % | Χ 2(4) = 96.74 | <0.001 |
| Weight (lb) | 5132 | 194.7 ± 50.2 | 1365 | 186.3 ± 51.5 | t(6495) = 5.470 | <0.001 |
| BMI (kg/m2) | 5127 | 31.48 ± 7.42 | 1363 | 30.10 ± 7.39 | t(6488) = 6.103 | <0.001 |
| SBP (mm Hg) | 5088 | 133.8 ± 19.1 | 1364 | 132.4 ± 19.3 | t(6450) = 2.292 | 0.022 |
| DBP (mm Hg) | 5084 | 79.91 ± 11.41 | 1366 | 79.28 ± 11.57 | t(6448) = 1.785 | 0.074 |
| TC (mg/dL) | 5218 | 193.2 ± 41.9 | 1400 | 190.4 ± 41.0 | t(6616) = 2.264 | 0.023 |
| LDL (mg/dL) | 5090 | 116.7 ± 35.5 | 1378 | 114.5 ± 35.6 | t(6466) = 2.245 | 0.041 |
| HDL (mg/dL) | 5214 | 49.20 ± 15.28 | 1400 | 48.10 ± 13.55 | t(2442) = 2.604 | 0.009 |
| TC:HDL ratio | 5212 | 4.215 ± 1.372 | 1400 | 4.224 ± 1.400 | t(6610) = −0.225 | 0.822 |
| TG (mg/dL) | 5206 | 142.9 ± 89.0 | 1399 | 143.4 ± 89.7 | t(6603) = −0.165 | 0.869 |
| FPG (mg/dL) | 5181 | 102.9 ± 30.7 | 1381 | 97.78 ± 26.41 | t(2470) = 6.146 | <0.001 |
| Pulse (beats/min) | 4970 | 71.71 ± 11.01 | 1335 | 70.65 ± 10.67 | t(6303) = 3.147 | 0.002 |