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. 2019 Oct 19;22(8):1414–1418. doi: 10.1093/ntr/ntz198

Table 1.

Baseline Demographic and Smoking Characteristics by Cigarette Nicotine Conditiona

VLNC (n = 30) NNC (n = 28) p
Age (years) 43.4 (9.6) 43.1 (11.0) .924
Gender (female), no. (%) 12 (40.0) 12 (42.9) 1.00
Race, no. (%)
 White 15 (50.0)c 19 (67.9) .412b
 Black 6 (20.0) 5 (17.9)
 Multiracial 6 (20.0) 4 (14.3)
Hispanic ethnicity, no. (%) 3 (10.0) 0 (0) .237
Diagnosis, no. (%)
 Schizophrenia and/or schizoaffective 22 (73.3) 23 (82.1) .534
 Bipolar 8 (26.7) 5 (17.9)
Menthol use, no. (%) 23 (76.7) 18 (64.3) .390
Cigarettes per day 20.1 (8.8) 18.2 (7.7) .374
Carbon monoxide level (ppm) 20.4 (13.0) 21.1 (11.9) .835
FTCD 6.8 (1.5) 6.5 (1.5) .438

Baseline demographics for all participants randomized to the very low nicotine content condition (VLNC) or normal nicotine control condition (NNC).

FTCD = Fagerström Test of Cigarette Dependence.

aUnless otherwise indicated, values represent mean (standard deviation).

b p value is based on the comparison between whites and nonwhites.

cThree participants did not report race.