Changes in body weight and food choice in those attempting smoking cessation: a cluster randomised controlled trial

Table 5 Comparison of changes in outcome measures between intervention and control group at week 24

Outcome	ICC	Adjusted Mean Difference (Intervention-Control)	Adjusted 95% C.I. of Difference	p
Primary outcome
Percentage weight change	0.015	0.904	−1.206 to 3.013	0.39
Secondary outcomes
Change in weight (kg)	0.025	0.540	−1.060 to 2.139	0.50
Change in waist circumference (cm)	0.239	−1.170	−3.494 to 1.155	0.32
Change in BMI (kg/m²)	0.000	0.158	−0.437 to 0.753	0.60

analyses are random effects linear regression models adjusted for baseline values and clustering by centre. Negative ICC are truncated at 0.

ISSN: 1471-2458