TABLE 1.

Baseline characteristics of Japanese study participants with and without a diagnosis of nonmelanoma skin cancer

	Cases	Noncases
No. of participants	284	95 706
Age (y), mean ± SD	57.8 ± 7.8	52.2 ± 8.0
Outdoor workers (%)	31.2	42.3
Alcohol consumption, yes (%)	38.7	30.3
Coffee consumption, yes (%)	69.4	60.0
Smoking status (%)
Former smokers	20.1	12.1
Current smokers	16.6	28.3
Physical activity, yes (%)	30.0	28.9
BMI (kg/m2), mean ± SD	23.7 ± 3.1	23.4 ± 3.0
Family history of cancer, yes (%)	22.0	20.8

BMI, body mass index.