Table 1.
The characteristics of categorical lifestyle factors and urinary 8‐hydroxydeoxyguanosine (8‐OH‐dG) levels and urinary 7‐methylguanine (m7Gua) levels in 361 male subjects
| Variables | Category | n | % | Urinary markers † | |||
|---|---|---|---|---|---|---|---|
| 8‐OH‐dG | P * | m7Gua | P * | ||||
| Sleep | Deficient | 10 | 2.8 | 4.37 ± 0.25 | 0.53 | 8.03 ± 0.47 | 0.26 |
| Slightly deficient | 181 | 50.1 | 4.19 ± 0.12 | 8.98 ± 0.21 | |||
| Sufficient | 170 | 47.1 | 4.20 ± 0.11 | 8.60 ± 0.19 | |||
| Holiday | Little or none | 2 | 0.6 | 5.41 ± 1.20 | 1.00 | 9.49 ± 0.12 | 0.15 |
| Once a week | 51 | 14.1 | 3.96 ± 0.21 | 9.42 ± 0.40 | |||
| Twice a week | 308 | 85.3 | 4.23 ± 0.08 | 8.66 ± 0.15 | |||
| Fatigue | Always | 18 | 5.0 | 3.66 ± 0.32 | 0.86 | 8.07 ± 0.36 | 0.37 |
| Sometimes | 256 | 70.9 | 4.17 ± 0.09 | 8.87 ± 0.17 | |||
| Rarely | 87 | 24.1 | 4.39 ± 0.17 | 8.62 ± 0.25 | |||
| Rhythm | Irregular | 66 | 18.3 | 4.05 ± 0.19 | 0.25 | 8.28 ± 0.27 | 0.24 |
| Mostly regular | 215 | 59.6 | 4.20 ± 0.10 | 8.87 ± 0.19 | |||
| Regular | 80 | 22.2 | 4.30 ± 0.16 | 8.91 ± 0.28 | |||
| Refreshing | Difficult | 13 | 3.6 | 4.40 ± 0.38 | 0.48 | 7.85 ± 0.56 | 0.36 |
| Moderate | 255 | 70.6 | 4.13 ± 0.09 | 8.86 ± 0.17 | |||
| Easy | 93 | 25.8 | 4.33 ± 0.17 | 8.67 ± 0.23 | |||
| Size of a meal | Full stomach every time | 24 | 6.6 | 3.87 ± 0.27 | 0.85 | 8.84 ± 0.55 | 0.55 |
| No pattern | 198 | 54.8 | 4.29 ± 0.11 | 8.90 ± 0.20 | |||
| Moderation every time | 139 | 38.5 | 4.12 ± 0.11 | 8.58 ± 0.20 | |||
| Healthy | Rerely | 46 | 12.7 | 4.25 ± 0.20 | 0.11 | 8.57 ± 0.37 | 0.72 |
| Meal | Consider sometimes | 187 | 51.8 | 4.33 ± 0.12 | 8.87 ± 0.20 | ||
| Combination | Consider every time | 128 | 35.5 | 3.99 ± 0.11 | 8.70 ± 0.23 | ||
| Skipping meals | One meal every day | 63 | 17.5 | 4.37 ± 0.20 | 0.62 | 9.32 ± 0.39 | 0.10 |
| 2 or 3 meals a week | 103 | 28.5 | 4.09 ± 0.15 | 8.88 ± 0.28 | |||
| Rarely | 195 | 54.0 | 4.20 ± 0.10 | 8.53 ± 0.16 | |||
| Light‐colored | Rarely | 17 | 4.7 | 4.32 ± 0.42 | 0.78 | 9.30 ± 0.94 | 0.35 |
| Vegetable | Once a day | 268 | 74.2 | 4.22 ± 0.09 | 8.83 ± 0.16 | ||
| Each meal | 76 | 21.1 | 4.09 ± 0.14 | 8.43 ± 0.29 | |||
| Green‐ and yellow‐collored vegetables | Rarely | 26 | 7.2 | 4.10 ± 0.32 | 0.75 | 9.93 ± 0.68 | 0.06 |
| 2 or 3 times a week | 244 | 67.6 | 4.21 ± 0.10 | 8.74 ± 0.16 | |||
| Everyday | 91 | 25.2 | 4.18 ± 0.12 | 8.53 ± 0.25 | |||
| Fruit | Rarely | 140 | 38.8 | 4.24 ± 0.12 | 0.03 | 8.54 ± 0.22 | 0.06 |
| 2 or 3 times a week | 187 | 51.8 | 4.28 ± 0.11 | 9.07 ± 0.20 | |||
| Everyday | 34 | 9.4 | 3.57 ± 0.19 | 8.10 ± 0.36 | |||
| Meat, fish, egg, etc. | Rarely | 11 | 3.0 | 4.72 ± 0.49 | 0.16 | 8.15 ± 0.55 | 0.05 |
| Twice a day | 194 | 53.7 | 4.25 ± 0.11 | 9.08 ± 0.19 | |||
| Each meal | 156 | 43.2 | 4.09 ± 0.11 | 8.43 ± 0.21 | |||
| Milk | Rarely | 118 | 32.7 | 4.32 ± 0.16 | 0.23 | 8.86 ± 0.24 | 0.68 |
| 2 or 3 times a week | 171 | 47.4 | 4.10 ± 0.10 | 8.82 ± 0.21 | |||
| Everyday | 72 | 19.9 | 4.23 ± 0.15 | 8.53 ± 0.29 | |||
| Oil | Rarely | 9 | 2.5 | 4.41 ± 0.58 | 0.55 | 9.30 ± 1.20 | 0.26 |
| 2 or 3 times a week | 192 | 53.2 | 4.15 ± 0.12 | 8.95 ± 0.19 | |||
| Eeveryday | 160 | 44.3 | 4.24 ± 0.10 | 8.52 ± 0.20 | |||
| Seaweed | Rarely | 58 | 16.1 | 3.99 ± 0.18 | 0.75 | 8.42 ± 0.34 | 0.50 |
| 2 or 3 times a week | 266 | 73.7 | 4.26 ± 0.09 | 8.86 ± 0.16 | |||
| Everyday | 37 | 10.2 | 4.04 ± 0.21 | 8.69 ± 0.49 | |||
| Physical activity‐1 | Light | 192 | 53.2 | 4.39 ± 0.11 | 0.03 | 8.71 ± 0.17 | 0.35 |
| Moderate | 119 | 33.0 | 4.09 ± 0.12 | 9.07 ± 0.28 | |||
| Moderately heavy | 12 | 3.3 | 3.85 ± 0.48 | 8.23 ± 0.67 | |||
| Heavy | 38 | 10.5 | 3.68 ± 0.19 | 8.32 ± 0.41 | |||
*
One‐way analysis of variance.
†
Data are mean ± SE: 8‐OH‐dG (µg/g creatinine), m
7
7 Gua (mg/g creatinine).