Table 1.
Baseline characteristics of the participants, weighted.
| Characteristic | Fiber intake, g/day | ||
|---|---|---|---|
| Tertile1 (7.51 ±0.07 g/day) | Tertile2 (14.90 ±0.05 g/day) | Tertile3 (28.79 ±0.25 g/day) | |
| Age (years) | 46.88 ± 0.49 | 48.14 ± 0.52 | 47.82 ± 0.57 |
| Sex, n (%) | |||
| Male | 40.01 | 46.22 | 58.27 |
| Female | 59.99 | 53.78 | 41.73 |
| Race, n (%) | |||
| Mexican American | 5.34 | 7.36 | 10.41 |
| Other races | 13.48 | 12.78 | 15.77 |
| Non-hispanic White | 66.89 | 70.22 | 66.21 |
| Non-hispanic Black | 14.30 | 9.65 | 7.61 |
| Marital status, n (%) | |||
| Married/living with partner | 58.55 | 63.72 | 68.22 |
| Widowed/divorced/separated | 21.54 | 19.43 | 13.88 |
| Never married | 19.92 | 16.85 | 17.90 |
| Educational level, n (%) | |||
| < High school | 15.32 | 11.73 | 10.91 |
| High school | 25.99 | 22.87 | 16.70 |
| >High school | 58.69 | 65.40 | 72.39 |
| PIR, n (%) | |||
| <1.2 | 23.50 | 16.29 | 16.28 |
| ≥1.2 | 76.50 | 83.71 | 83.72 |
| BMI, n (%) | |||
| <25 kg/m2 | 26.70 | 28.09 | 30.65 |
| 25–30 kg/m2 | 30.16 | 33.28 | 35.00 |
| ≥30 kg/m2 | 43.14 | 38.63 | 34.35 |
| Current smoker, n (%) | |||
| Yes | 8.21 | 5.46 | 4.82 |
| No | 5.36 | 6.76 | 9.04 |
| Unknown | 86.43 | 87.78 | 86.14 |
| Systolic blood pressure (mmHg) | 122.59 ± 0.41 | 121.78 ± 0.42 | 121.90 ± 0.44 |
| Diastolic blood pressure (mmHg) | 70.31 ± 0.41 | 70.70 ± 0.36 | 70.97 ± 0.38 |
| Glucose (mg/dl) | 99.78 ± 0.91 | 99.41 ± 0.69 | 99.50 ± 0.82 |
| Cholesterol (mg/dl) | 192.35 ± 0.97 | 193.18 ± 1.07 | 192.18 ± 1.12 |
| Triglycerides (mg/dl) | 147.47 ± 2.77 | 149.05 ± 3.20 | 151.26 ± 3.59 |
| HDL (mg/dl) | 54.02 ± 0.55 | 54.84 ± 0.48 | 53.47 ± 0.48 |
| Glycohemoglobin (%) | 5.62 ± 0.02 | 5.63 ± 0.02 | 5.63 ± 0.03 |
| Energy intake (kcal/day) | 1,601.75 ± 16.63 | 2,145.46 ± 21.92 | 2,742.15 ± 25.63 |
| Vigorous activity, n (%) | |||
| Yes | 23.21 | 23.02 | 22.73 |
| No | 76.79 | 76.98 | 77.27 |
| Diabetes, n (%) | |||
| Yes | 10.05 | 9.54 | 8.94 |
| No | 87.09 | 88.56 | 88.64 |
| Borderline | 2.86 | 1.90 | 2.42 |
| Hypertension, n (%) | |||
| Yes | 32.78 | 33.47 | 31.10 |
| No | 67.22 | 66.53 | 68.90 |
| Hypercholesteremia, n (%) | |||
| Yes | 32.75 | 34.77 | 35.28 |
| No | 67.25 | 65.23 | 64.72 |
| Sleeping disorder, n (%) | |||
| Yes | 31.85 | 29.97 | 27.71 |
| No | 68.15 | 70.03 | 72.29 |
| Hypoglycemic drugs, n (%) | |||
| Yes | 7.01 | 8.16 | 7.09 |
| No | 12.59 | 10.39 | 11.70 |
| Unknown | 80.39 | 81.45 | 81.21 |
| Antihypertensive drugs, n (%) | |||
| Yes | 23.39 | 25.12 | 21.76 |
| No | 5.04 | 3.98 | 4.34 |
| Unknown | 71.57 | 70.90 | 73.90 |
| Lipid-lowing drugs, n (%) | |||
| Yes | 18.30 | 18.75 | 17.75 |
| No | 5.71 | 5.77 | 6.53 |
| Unknown | 75.99 | 75.48 | 75.72 |
| Preventive aspirin use, n (%) | |||
| Yes | 2.03 | 2.52 | 3.36 |
| No | 39.63 | 38.61 | 39.07 |
| Unknown | 58.35 | 58.86 | 57.57 |
| Nonfatal cardiovascular event, n (%) | |||
| Yes | 6.50 | 5.45 | 4.25 |
| No | 93.50 | 94.55 | 95.75 |
Mean ± standard error (SE) for continuous variables and percentage (%) for categorical variables.
PIR, poverty to income ratio; BMI, body mass index; HDL, high-density lipoprotein.