Table 2.

Frequency of distribution of reported smoking status according to toenail nicotine level categories

Toenail nicotine categories based on reported smoking status, % distribution in the population
123456
(0.01-0.14), 38.2(0.15-0.62), 30.4(0.63-1.23), 9.1(1.24-2.83), 12.4(2.84-4.80), 6.2(4.81-32.7), 3.7
Smoking status
    1 Never smokers (39.3%)57.7 (549)48.2 (364)20.4 (46)7.5 (23)2.0 (3)3.3 (3)
    2 Past smokers (29.4%)40.1 (381)37.6 (284)19.0 (43)4.6 (14)1.3 (2)2.2 (2)
    3 Current: 1-14 cigarettes per day (9.1%)1.1 (10)9.13 (69)28.8 (65)18.8 (58)11.8 (18)4.4 (4)
    4 Current: 15-24 cigarettes per day (12.4%)0.7 (7)3.7 (28)19.5 (44)37.0 (114)50.3 (77)39.6 (36)
    5 Current: 25-34 cigarettes per day (6.2%)0.4 (4)0.8 (6)7.5 (17)21.8 (67)23.5 (36)24.2 (22)
    6 Current: ≥35 cigarettes per day (3.6%)0 (0)0.7 (5)4.9 (11)10.4 (32)11.1 (17)26.4 (24)
100100100100100100