Table 1.

LHS1 Baseline Characteristics of Participants of LHS 3 Visit^abc.

Variable	Non-Attenders	Attenders	p-value
Treatment Assignment	64.6	67.4	0.11
Age (years)	46.8 (6.8)b	48.4 (6.8)	<0.0001c*
Female %	33.9	38.3	0.01*
White %	96.1	96.1	0.97
Black %	3.5	3.4	0.87
Oriental %	0.1	0.1	0.87
Married %	68.2	72.2	0.02*
Education (years)	13.7 (2.69)	13.6 (2.84)	0.42
Full-time Job %	81.5	81.3	0.88
Part-time Job %	6.7	7.9	0.20
BMI	25.8 (3.89)	25.5 (3.88)	0.06
Drinks/week	4.3 (5.36)	4.4 (5.52)	0.79
Cigarettes/day	32.7 (13.2)	30.8 (12.7)	<0.0001*
Spouse Smoke %	28.5	28.3	0.91
Children smoke %	7.2	12.2	<0.0001*
Others smoke %	6.1	5.7	0.66
No. Household Smokersdf	0.5 (0.71)	0.5 (0.71)	0.07
Spouse Like Quit %	90.6	89.6	0.36
Cough %	38.6	35.1	0.05*
Phlegm %	32.6	30.0	0.13
Wheeze %	61.8	58.9	0.10
Chest Cold %	5.6	5.6	0.97
Bronchitis %	7.7	7.0	0.50
Mass Mail Recruitment %	28.1	35.0	<0.0001*
Public Site %	9.3	6.5	0.01*
Phone Survey %	3.2	3.2	0.98
Other Recruitment %e	24.6	20.9	0.02*
Post BD FEV1g	2.81 (0.63)	2.75 (0.63)	0.01*
Post BD FVC g	4.33 (0.96)	4.24 (0.95)	0.01*

^aAnalyses done on data from 4,457 attenders and 875 non-attenders at LHS 3.

^bNote: Numbers in parentheses represent standard deviations.

^cNote: * Denotes statistical significance at p<0.05

^dNumber of household smokers excludes participant.

^eOther recruitment is a composite of worksite and referral methods.

^fNumber of household smokers had missing data for 1 non-attender.

^gPost BD FEV₁ and FVC had missing data for 1 attender and 1 non-attender.