. Author manuscript; available in PMC: 2015 May 12.

Published in final edited form as: J Am Diet Assoc. 2010 Jun;110(6):917–921. doi: 10.1016/j.jada.2010.03.017

Table 2.

Odds ratio (OR) and 95% confidence intervals (CIs) for risk of attrition and having barriers related to eating behaviors across PERIOD2 (PER2) (rs2304672) genotype groups in research to test for association between polymorphisms in the circadian clock-related gene PER2 and obesity treatment attrition^a

Genotype group	Attrition		Extreme Snacking		Stress with Dieting		Are You Liable to Eat when Bored?		Skipping Breakfast
Genotype group	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
CC (n=376)	1		1		1		1		1
GG+CG (n=54)	2.12	(1.09–4.10)	2.66	(1.25–5.62)	1.92	(1.01–3.62)	2.21	(0.96–5.05)	1.90	(1.02–3.53)
P value	0.025		0.014		0.040		0.043		0.044

Adjusted for age, sex, initial body mass index, and clinic.