Table 2.

Adjusted ORs for urinary 8-OHdG levels (≥8 μg/g creatinine, n = 127) and lifestyle

Adjusted OR (95% CI)
Sunlight-exposure time
1 d before (n = 29)a0.51 (0.15–1.71)
2 d before (n = 53)b1.83 (0.69–4.85)
Ratio of sunlight-exposed skin area to the whole body
1 d before (n = 57)a0.93 (0.35–2.45)
2 d before (n = 65)b0.62 (0.23–1.67)
Sunlight intensity
1 d before (n = 44)a4.35 (1.59–11.91)c
2 d before (n = 54)b10.87 (3.17–37.36)c
L*-value (lightness)
Sole (n = 77)0.61 (0.23–1.62)
Forehead (n = 13)12.17 (2.64–56.08)c
Difference (n = 46)2.95 (1.02–8.48)c
Sunscreen
Regular use (n = 56)1.94 (0.32–11.77)

NOTE: Models were adjusted for age, sex, smoking, drinking, and BMI.

  • aOne day before the day of urine sample collection.

  • bTwo days before the day of urine sample collection.

  • cP < 0.05.