Table 5-2.
Pearson’s correlation of urinary 8-OHdG with each parameter
| Variable | All (n = 677) |
Male (n = 293) |
Female (n = 384) |
|||
|---|---|---|---|---|---|---|
| r | p | r | p | r | p | |
| Age (year) | 0.205 | <0.001** | 0.129 | 0.028* | 0.248 | <0.001** |
| Weight (kg) | −0.142 | <0.001** | −0.139 | 0.017* | −0.125 | 0.014* |
| BMI (kg/m2) | −0.099 | 0.010** | −0.126 | 0.031* | −0.068 | 0.186 |
| TC (mg/dl) | 0.112 | 0.004** | −0.044 | 0.452 | 0.076 | 0.136 |
| HDL-c (mg/dl) | 0.074 | 0.053 | 0.061 | 0.302 | 0.047 | 0.353 |
| LDL-c (mg/dl) | 0.105 | 0.006** | −0.007 | 0.905 | 0.186 | <0.001** |
| TG (mg/dl) | −0.014 | 0.707 | −0.075 | 0.201 | 0.068 | 0.186 |
| Hs-CRP (mg/dl) | 0.070 | 0.067 | −0.031 | 0.595 | 0.140 | 0.006** |
| Life style | ||||||
| Smoking (No./day × year) | 0.040 | 0.296 | 0.052 | 0.380 | 0.157 | 0.002** |
| Alcohol drinking (units/week) | 0.007 | 0.849 | −0.006 | 0.914 | 0.084 | 0.099 |
| Dietary antioxidant vitamins | ||||||
| Tocopherol (mg/day) | −0.057 | 0.136 | −0.102 | 0.083 | −0.031 | 0.551 |
| β-Carotene (µg/day) | −0.003 | 0.931 | −0.074 | 0.205 | 0.032 | 0.528 |
| Retinol (µg/day) | −0.029 | 0.453 | −0.084 | 0.152 | −0.012 | 0.811 |
| Vitamin C (mg/day) | −0.021 | 0.593 | −0.080 | 0.171 | −0.005 | 0.921 |
*p<0.05, **p<0.01
Log-transformed data in 8-isoprostane, 8-OHdG, TG, Hs-CRP, retinol and vitamin C.
BMI indicates body mass index; TC, total cholesterol; HDL-c, high-density lipoprotein cholesterol; LDL-c, low-density lipoprotein; TG, triglycerides; Hs-CRP, high-sensitivity C-reactive protein; Cre, creatinine.