. Author manuscript; available in PMC: 2009 Oct 6.

Published in final edited form as: Obesity (Silver Spring). 2009 Feb 26;17(6):1158–1163. doi: 10.1038/oby.2009.46

Table 1. Subjects Characteristics.

	Never smoker (N = 113)	Former smoker (N = 55)	Current smoker (N = 61)	Statistical analyses (P value)
Age mean (s.d.)	34.4 (6.5)	36.5 (6.3)	35.3 (5.5)	0.11
BMI mean (s.d.)	25.9 (8.1)	29.5 (6.5)	28.1 (6.2)	0.43
BMI category (percentage of group)				0.58
Normal weight	33.6%	41.0%	30.9%
Overweight	33.6%	26.2%	27.3%
Obese	32.7%	32.8%	41.8%
Yearly income (percentage of group)				0.001
<$20,000	26.6%^a	18.9%^a	53.3%^b
$20,000 to $50,000	45.1%^a	43.4%^a	28.3%^b
>$50,000	28.3%^a	37.7%^a	18.3%^b
Years of education mean (s.d.)	14.2 (2.1)^a	13.8 (1.8)^a	12.9 (2.4)^b	0.001
Parity mean (s.d.)	2.8 (1.5)	2.8 (1.3)	2.9 (1.4)	0.96
BDI score mean (s.d.)	4.9 (4.9)^a	5.8 (5.8)^a	8.3 (9.7)^b	0.01
Depressed, as determined by BDI (percentage of group)	16.8%	20.0%	26.2%	0.33

Significant P values are in bold.

Values in a row with different superscript letters are significantly different from each other.

BMI, body mass index; BDI, Beck Depression Inventory.