Table 1

Distribution of demographic and smoking characteristics

CharacteristicNever (n = 28)Former (n = 26)Current (n = 28)P
Age (y)
 Mean ± SD46.9 ± 14.856.6 ± 16.751.5 ± 12.00.06
 Median (range)48.5 (26-70)56.5 (26-79)49.5 (23-75)0.09
Gender, n (%)
 Male14 (50)15 (58)16 (57)0.85
 Female14 (50)11 (42)12 (43)
Race, n (%)
 Caucasian15 (54)16 (60)13 (46)0.03
 Black4 (14)3 (12)13 (46)
 Hispanic6 (21)3 (12)2 (7)
 Asian2 (7)1 (4)0 (0)
 Other1 (4)3 (12)0 (0)
Pack-year, n (%)
 <20n/a6 (24)10 (36)0.66
 21-40n/a9 (36)9 (32)
 >40n/a10 (40)9 (32)

Abbreviation: n/a, not applicable.