Table 1: Patient variables.

Patient variablesAsians ( 𝑛 = 1 0 )Caucasian controls ( 𝑛 = 3 0 ) 𝑃 value

Mean age (years) of onset for first BCC68.9 ± 13.258.3 ± 14.0<0.05
Occurrence of multiple (>1) lifetime BCC1 ( 1 1 . 1 % ) 23 ( 7 9 . 3 % ) <0.01
Mean number of lifetime BCCs 1 . 1 1 ± 0 . 3 3 5 . 4 1 ± 5 . 0 3 <0.02
Mean Fitzpatrick skin phototype 3 . 4 4 ± 1 . 4 2 2 . 7 2 ± 1 . 1 6 <0.15
Presence of fair skin2 (20.0%)18 ( 6 2 . 1 % ) <0.04
Mean sun exposure (hours/day)2.52.77<0.70
History of chemical exposure4 ( 4 4 . 4 % ) 7 ( 2 4 . 1 % ) <0.40
History of X-ray exposure2 ( 2 2 . 2 % ) 11 ( 3 1 . 0 % ) <0.46
Mean smoking pack years 1 8 . 8 ± 2 4 . 7 5 1 0 . 3 ± 1 8 . 0 <0.45
Hx of non-BCC skin cancer0 (0%)5 ( 1 7 . 2 % ) <0.32
FHx of skin cancer0 (0%)10 ( 3 3 . 3 % ) <0.08
Hx of other cancer0 (0%)8 ( 2 7 . 6 % ) <0.16
FHx of other cancer5 ( 5 5 . 5 % ) 21 ( 6 9 . 9 % ) <0.44

* 𝑛 = 9 , ** 𝑛 = 2 9 due to unavailable data, and *** 𝑛 = 2 7 due to unavailable data.