Table 1.

Baseline Sample Characteristics for Cross-Sectional Analysis of American Building Apprentices Enrolled in the MassBUILT Smoking Cessation Trial (n=1725)^a,^b

		% (n)
Gender	Male	95.0 (1600)
	Female	5.0 (84)
Race	Hispanic	4.0 (64)
	Black	7.4 (119)
	Other	6.6 (106)
	White	82.1 (1328)
Age (continuous)	Mean (SD)	28.5 (6.6)
Education	≤High school/GED	51.8 (852)
	Some college/2yr degree	39.3 (647)
	≥4 years college	8.9 (146)
Income	<$25,000	6.7 (98)
	$25,000–$49,999	37.1 (545)
	$50,000–74,999	25.6 (376)
	≥$75,000	30.7 (451)
Contractor safety	Low	44.8 (772)
	High	55.3 (953)
Coworker safety	Low	58.1 (1002)
	High	41.9 (723)
Mask use	Yes	74.8 (1128)
	No	25.3 (381)
Respirator use	Yes	69.8 (736)
	No	30.2 (319)
Hearing protection use	Yes	76.4 (1177)
	No	23.6 (364)
General equipment usec	Yes	95.1 (1497)
	No	4.9 (77)
Fall protection use	Yes	88.1 (1331)
	No	11.9 (180)
Smoking status	Current smoker	43.0 (731)
	Nonsmoker	57.0 (968)

^aExcludes respondents with missing values for coworker safety climate or contractor safety climate.

^bPre-imputation figures

^cSuch as goggles or gloves