Table 1.
Clinical characteristics of subjects
| Characteristic | All | Below-Average Intake | Above-Average Intake |
|---|---|---|---|
| n | 127 | 76 | 51 |
| Sex (men/women) | 71/56 | 36/40 | 35/16* |
| Age, yr | 60 ± 1 | 61 ± 1 | 58 ± 1† |
| Systolic BP, mmHg | 119 ± 1 | 118 ± 1 | 120 ± 2 |
| Diastolic BP, mmHg | 74 ± 1 | 72 ± 1 | 76 ± 1† |
| Body mass, kg | 72 ± 1 | 71 ± 2 | 74 ± 2 |
| Body mass index, kg/m2 | 24.3 ± 0.3 | 24.4 ± 0.4 | 24.2 ± 0.5 |
| Physical activity, MET h/wk | 50 ± 4 | 42 ± 5 | 62 ± 7* |
| Total cholesterol, mg/dl | 199 ± 2 | 199 ± 3 | 197 ± 4 |
| HDL cholesterol, mg/dl | 59 ± 1 | 60 ± 2 | 57 ± 2 |
| LDL cholesterol, mg/dl | 118 ± 2 | 117 ± 3 | 118 ± 3 |
| Triglycerides, mg/dl | 105 ± 4 | 101 ± 5 | 110 ± 7 |
| Fasting glucose, mg/dl | 89 ± 1 | 89 ± 1 | 90 ± 1 |
Values are means ± SE; n, no. of subjects. BP, blood pressure; MET, metabolic equivalent; HDL, high density lipoprotein; LDL, low-density lipoprotein.
*
P < 0.05 and
†
P < 0.01 vs. low-niacin group.