. 2009 Nov 18;21(3):387–391. doi: 10.1007/s10552-009-9470-4

Table 2.

Selected factors and the risk of non-melanoma skin cancer (multivariable model)

Baseline covariates	Odds ratio (OR)^a and 95% CI	p-value
Age (per 1 year)	1.01 (0.98–1.04)	0.50
BMI (per 1 kg/m²)	0.86 (0.73–1.02)	0.09
Current cigarette smoking (yes/no)	0.22 (.029–1.65)	0.14
Outdoor walking	0.99 (0.98–1.001)	0.08
Clinic site
Minneapolis vs. San Diego	0.41 (0.23–0.73)	0.003
Portland vs. San Diego	0.46 (0.27–0.78)	0.004

^aOR are for each covariate in a multivariable model adjusted for quintiles of 25(OH)D, age, BMI, season of blood draw, clinic site, outdoor walking activity (continuous variable), and cigarette smoking (yes/no)