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. 2021 Nov 23;4:162. doi: 10.1038/s41746-021-00532-2

Table 1.

Characteristics of the participants.

Demographic characteristic n (%) M (SD) Observed range
Age 42.6 (14) 20–64
Sex
 Male 23 (51%)
 Female 22 (49%)
Race
 American Indian/Alaska Native 0 (0%)
 Asian 1 (2%)
 Native Hawaiian/Other Pacific Islander 0 (0%)
 Black/African American 23 (51%)
 White 14 (31%)
 Two or more races 5 (11%)
 Other 2 (4%)
Ethnicity
 Not Hispanic/Latino 40 (89%)
 Hispanic/Latino 5 (11%)
Number of cigarettes per day
 10 or less 28 (62%)
 11–20 12 (27%)
 21–30 3 (7%)
 31 or more 2 (4%)
Age of starting to smoke? 18.3 (6.5) 7–45