Unraveling the Relationship between Smoking and Weight: The Role of Sedentary Behavior

Table 3

Linear regression analyses predicting waist circumference.

	Beta coefficient (confidence interval)	𝑃 value
Sedentary behavior
Low (≤1 hour)	0	—
Moderate (2-3 hours)	2.24 (1.60–2.88)	<.0001
High (≥4 hours)	5.52 (4.66–6.39)	<.0001
Smoking status
Never	0	—
Former	1.06 (.35–1.78)	.0042
Current	−2.42 (−3.19– −1.64)	<.0001
Dining out (per week)
<1 time or never	0	—
1 time	0.94 (.06–1.82)	.0365
≥2 times	2.05 (1.40–2.69)	<.0001
Sex
Male	0	—
Female	−6.80 (−7.41– −6.18)	<.0001
Race
Non-Hispanic white	0	—
Non-Hispanic black	0.83 (.10–1.56)	.0257
Mexican American	−0.11 (−1.14–.92)	.8355
Other	−2.46 (−3.72– −1.21)	.0002
Age	0.17 (.16–.19)	<.0001
Education
< HS	2.95 (1.99–3.92)	<.0001
HS	3.25 (2.42–4.08)	<.0001
Associates/some college	2.80 (2.03–3.57)	<.0001
≥College	0	—
Survey year
1999-2000	0	—
2001-2002	0.55 (−.69–1.80)	.3771
2003-2004	1.94 (.68–3.21)	.0031
2005-2006	2.08 (.54–3.62)	.0090