Table 1. General characteristics of the participants in the study based on tertiles of DTAC.
| Characteristics | Tertile 1 (≤ 741.3) (n = 76) | Tertile 2 (741.3–1,185.7) (n = 75) | Tertile 3 (≥ 1,185.7) (n = 75) | p value | |
|---|---|---|---|---|---|
| Age (yr) | 67.7 ± 6.10 | 67.3 ± 5.97 | 66.0 ± 5.12 | 0.07 | |
| Weight (kg) | 71.0 ± 11.4a | 71.1 ± 11.1a,b | 75.7 ± 13.0b | 0.01* | |
| Height (cm) | 155 ± 7.70 | 155 ± 8.33 | 157 ± 7.92 | 0.10 | |
| WC (cm) | 99.0 ± 11.4 | 98.9 ± 9.20 | 99.6 ± 10.4 | 0.71 | |
| BMI (kg/m2) | 29.3 ± 4.15 | 30.2 ± 5.05 | 29.6 ± 4.38 | 0.65 | |
| Systolic blood pressure (mmHg) | 140 ± 19.9 | 144 ± 23.5 | 141 ± 22.5 | 0.53 | |
| Diastolic blood pressure (mmHg) | 83.1 ± 14.9 | 87.8 ± 16.3 | 83.0 ± 12.1 | 0.07 | |
| Sex | 0.19 | ||||
| Male | 19 (25.0) | 20 (26.7) | 26 (34.7) | ||
| Female | 57 (75.0) | 55 (73.3) | 49 (65.3) | ||
| Marital status | < 0.001* | ||||
| Single | 0 (0) | 0 (0) | 3 (4.0) | ||
| Married | 49 (64.5) | 53 (70.7) | 59 (78.7) | ||
| Divorced | 0 (0) | 2 (2.7) | 2 (2.7) | ||
| Widow | 27 (35.5) | 20 (26.7) | 11 (14.7) | ||
| Smoking | 0.02* | ||||
| None smoker | 67 (88.2) | 68 (90.7) | 56 (74.7) | ||
| Former and current smoker | 9 (11.8) | 7 (9.3) | 19 (25.3) | ||
| Physical activity | 0.88 | ||||
| Very low | 34 (44.7) | 37 (49.3) | 37 (49.3) | ||
| Low | 31 (40.8) | 22 (29.3) | 25 (33.3) | ||
| Medium and high | 11 (14.5) | 16 (21.3) | 13 (17.3) | ||
One-way analysis of variance for quantitative data and χ2 test for qualitative data have been used. Values are presented as mean ± standard deviations or number of subjects (%).
DTAC, dietary total antioxidant capacity; WC, waist circumference; BMI, body mass index.
*Significantly different between groups (p < 0.05); a,bTukey post hoc test: means with the same letter indicate no significant difference. Any difference between 2 means carrying different letters is significant at 0.05.