Table 2.
Prevalence and odds ratios (and 95% CI) for the associations between demographic factors, health-related characteristics, sun exposure and sunburn history, and skin cancer history according to skin cancer prevention behaviors among males and females, Washington County, MD, 2007.
| Males | Females | |||||||
|---|---|---|---|---|---|---|---|---|
| Regular sunscreen use | Regular sun-protective clothing use | Regular sunscreen use | Regular sun-protective clothing use | |||||
| % | OR (95% CI)† | % | OR (95% CI)† | % | OR (95% CI)† | % | OR (95% CI)† | |
| Age | ||||||||
| 30–39 | 9.3 | 1.0 (referent) | 11.1* | 1.0 (referent) | 41.1* | 1.0 (referent) | 7.2* | 1.0 (referent) |
| 40–49 | 14.3 | 2.50 (0.69 – 9.00) | 16.0 | 2.69 (0.77 – 9.36) | 28.4 | 0.66 (0.45 – 0.97) | 9.3 | 1.15 (0.59 – 2.22) |
| 50–59 | 15.2 | 2.34 (0.68 – 8.08) | 22.1 | 3.36 (1.00 – 11.24) | 34.1 | 0.81 (0.57 – 1.16) | 13.7 | 1.67 (0.91 – 3.07) |
| 60–69 | 12.1 | 1.59 (0.46 – 5.50) | 26.8 | 4.35 (1.30 – 14.54) | 28.6 | 0.63 (0.44 – 0.90) | 18.8 | 2.21 (1.21 – 4.06) |
| 70–79 | 13.7 | 1.73 (0.49 – 6.06) | 30.8 | 4.73 (1.41 – 15.92) | 26.4 | 0.58 (0.40 – 0.85) | 20.8 | 2.34 (1.27 – 4.38) |
| ≥80 | 11.0 | 1.08 (0.29 – 3.98) | 39.5 | 5.66 (1.65 – 19.40) | 17.7 | 0.30 (0.19 – 0.47) | 24.6 | 2.43 (1.27 – 4.66) |
| Years of education | --‡ | 1.09 (1.05 – 1.14) | --‡ | 1.04 (1.01 – 1.08) | --‡ | 1.13 (1.10 – 1.16) | --‡ | 1.05 (1.02 – 1.09) |
| Cigarette Smoking | ||||||||
| Never | 13.2 | 1.0 (referent) | 28.5 | 1.0 (referent) | 28.9 | 1.0 (referent) | 17.3 | 1.0 (referent) |
| Former | 13.4 | 1.13 (0.86 – 1.49) | 27 | 0.77 (0.63 – 0.95) | 31.2 | 1.17 (1.00 – 1.37) | 17.4 | 0.99 (0.82 – 1.20) |
| Current | 3.8 | 0.33 (0.13 – 0.84) | 12.7* | 0.46 (0.28 – 0.77) | 21.6 | 0.69 (0.51 – 0.95) | 10.8 | 0.73 (0.48 – 1.10) |
| BMI | --‡ | 0.94 (0.92 – 0.97) | --‡ | 0.99 (0.97 – 1.01) | --‡ | 0.97 (0.96 – 0.98) | --‡ | 1.00 (0.99 – 1.01) |
| Days of 1 hr sun exposure | ||||||||
| ≤1 day per week | 16 | 1.0 (referent) | 35.4* | 1.0 (referent) | 27.8 | 1.0 (referent) | 21.9* | 1.0 (referent) |
| >1 day per week | 12.3 | 0.78 (0.56 – 1.08) | 24.3 | 0.77 (0.63 – 0.95) | 30.1 | 1.09 (0.92 – 1.30) | 12 | 0.72 (0.58 – 0.89) |
| Ever blistering sunburn | ||||||||
| No | 10.3 | 1.0 (referent) | 28.2 | 1.0 (referent) | 31.8 | 1.0 (referent) | 18.5 | 1.0 (referent) |
| Yes | 15.2 | 1.12 (0.84 – 1.50) | 24.8 | 1.08 (0.88 – 1.33) | 24.8* | 0.99 (0.85 – 1.16) | 14.3* | 1.22 (1.00 – 1.49) |
| Weekday hours in the midday sun | --‡ | 0.99 (0.88 – 1.12) | --‡ | 1.09 (0.99 – 1.19) | --‡ | 0.98 (0.90 – 1.06) | --‡ | 1.09 (0.97 – 1.22) |
| Weekend hours in the midday sun | --‡ | 1.04 (0.92 – 1.18) | --‡ | 0.88 (0.80 – 0.97) | --‡ | 1.04 (0.96 – 1.12) | --‡ | 0.81 (0.73 – 0.90) |
| Personal history of skin cancer | ||||||||
| No | 10.7 | 1.0 (referent) | 22.4 | 1.0 (referent) | 26.2 | 1.0 (referent) | 14.8 | 1.0 (referent) |
| Yes | 21.5 | 2.07 (1.54 – 2.78) | 41.8* | 1.84 (1.46 – 2.30) | 42.5* | 2.21 (1.83 – 2.67) | 27* | 1.71 (1.39 – 2.11) |
| Family history of skin cancer | ||||||||
| No | 11.6 | 1.0 (referent) | 26 | 1.0 (referent) | 27.6 | 1.0 (referent) | 16.6 | 1.0 (referent) |
| Yes | 18.7 | 1.41 (1.07 – 1.86) | 29.9 | 1.00 (0.80 – 1.25) | 32.5* | 1.00 (0.85 – 1.17) | 17.6 | 0.96 (0.79 – 1.16) |
†
Odds Ratio with 95% Confidence Interval. Adjusted for all covariates listed in table plus skin reaction to sunlight
‡
Measured continuously
*
p for trend <0.05