Table 1.
Demographic characteristics | Responders (n = 578), n (%) | Nonresponders (n = 134), n (%) | Overall population (N = 712), n (%) |
---|---|---|---|
Race/ethnicity | n = 573 | n = 131 | n = 704 |
White | 525 (91.6) | 118 (90.1) | 643 (91.3) |
Asian | 29 (5.1) | 7 (5.3) | 36 (5.1) |
American Indian or Alaska Native | 7 (1.2) | 1 (0.8) | 8 (1.1) |
Black, of African heritage/African American | 4 (0.7) | 2 (1.5) | 6 (0.9) |
Other | 8 (1.4) | 3 (2.3) | 11 (1.6) |
Ethnicity | n = 466 | n = 109 | n = 575 |
Non Hispanic | 463 (99.4) | 108 (99.1) | 571 (99.3) |
Hispanic | 3 (0.6) | 1 (0.9) | 4 (0.7) |
Smoking status | n = 550 | n = 124 | n = 674 |
Smoker | 136 (24.7) | 16 (12.9) | 152 (22.6) |
Ex-Smoker | 190 (34.5) | 44 (35.5) | 234 (34.7) |
Nonsmoker | 224 (40.7) | 64 (51.6) | 288 (42.7) |
Age (years) | n = 563 | n = 134 | n = 697 |
Missing | 15 | 0 | 15 |
Mean ± SD | 52 ± 12 | 53 ± 12 | 53 ± 12 |
Median | 53 | 54 | 53 |
Range | [18–99] | [25–86] | [18–99] |
Systolic blood pressure (mm Hg) | n = 570 | n = 134 | n = 704 |
Mean ± SD | 133 ± 14 | 132 ± 15 | 133 ± 14 |
Median | 130 | 130 | 130 |
Diastolic blood pressure (mm Hg) | n = 566 | n = 133 | n = 699 |
Mean ± SD | 83 ± 10 | 82 ± 10 | 82 ± 10 |
Median | 80 | 80 | 80 |
Height (cm) | n = 510 | n = 125 | n = 635 |
Mean ± SD | 176 ± 8 | 176 ± 8 | 176 ± 8 |
Median | 176 | 176 | 176 |
Weight (kg) | n = 527 | n = 126 | n = 653 |
Mean ± SD | 94 ± 15 | 93 ± 15 | 94 ± 15 |
Median | 94 | 92 | 93 |
BMI (kg/m2) | n = 510 | n = 125 | n = 635 |
Mean ± SD | 31 ± 4 | 30 ± 4 | 31 ± 4 |
Median | 31 | 30 | 31 |
Waist circumference (cm) | n = 541 | n = 123 | n = 664 |
Mean ± SD | 107 ± 12 | 106 ± 13 | 107 ± 12 |
Median | 106 | 105 | 106 |
Abdominal obesitya | n = 543 | n = 123 | n = 666 |
353 (65) | 78 (63.4) | 431 (64.7) | |
Elevated blood pressureb | n = 545 | n = 120 | n = 665 |
322 (59.1) | 56 (46.7) | 378 (56.8) | |
Metabolic syndromec | n = 557 | n = 126 | n = 683 |
283 (50.8) | 62 (49.2) | 345 (50.5) | |
Type 2 diabetes | n = 574 | n = 132 | n = 706 |
116 (20.2) | 35 (26.5) | 151 (21.4) | |
Type 1 diabetes | n = 557 | n = 126 | n = 683 |
8 (1.4) | 3 (2.4) | 11 (1.6) | |
Reduced HDL-Cd | n = 490 | n = 105 | n = 595 |
or drug treatment for reduced HDL-C | 243 (49.6) | 47 (44.8) | 290 (48.7) |
Elevated triglyceridese | n = 491 | n = 109 | n = 600 |
209 (42.6) | 51 (46.8) | 260 (43.3) |
BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; SD, standard deviation.
Classified as: Waist circumference ≥102 cm (non-Asian men) and ≥90 cm (Asian men).
Classified as: Systolic blood pressure ≥130 mm Hg or diastolic blood pressure ≥85 mm Hg, or drug treatment for hypertension.
Presence of metabolic syndrome based on 3 criteria (modified NCEP ATP III criteria [32]).
<40 mg/dL or 1.03 mmol/L.
≥150 mg/dL or 1.7 mmol/L.