Obesity Might Be a Predictor of Weight Reduction after Smoking Cessation

Table 3

Predictors of ex-smokers’ weight reduction after five years. Model 1 including all tested predictors. Model 4 including final predictors.

Baseline variables	Model 1 incl. all explanatory variables ()				Model 4 ()
	Estimate	CI 95%	value	Overall	Estimate	CI 95%	value	Overall
	OR			test	OR			test
Heavy smoker	0.37	(0.16–0.86)	0.02	0.02	0.34	(0.16–0.72)	<0.01	<0.01
Light smoker (ref.)	1.00				1.00
Obese	7.13	(2.46–20.69)	<0.01	0.00	7.38	(2.76–19.71)	<0.01	<0.01
Overweight	2.72	(1.10–6.73)	0.03		3.10	(1.34–7.16)	0.01
Normal weight (ref.)	1.00				1.00
Inter99	1.25	(0.43–3.65)	0.68	0.68	—	—	—
Health2006 (ref.)	1.00
High socioeconomic status	0.85	(0.23–3.23)	0.81	0.59	—	—	—
Middle socioeconomic status	0.60	(0.21–1.77)	0.36		—	—	—
Low socioeconomic status (ref.)	1.00				—	—	—
Male	1.37	(0.59–3.18)	0.47	0.47	—	—	—
Female (ref.)	1.00				—	—	—
Age (years)	1.02	(0.98–1.08)	0.34	0.34	—	—	—
Healthy diet	1.36	(0.30–6.23)	0.70	0.82	—	—	—
Average diet	0.94	(0.28–3.22)	0.93		—	—	—
Unhealthy diet (ref.)	1.00				—	—	—
Active (physical activity)	0.65	(0.25–1.67)	0.37	0.38	—	—	—
Insufficiently active (ref.)	1.00				—	—	—
>14 alcohol units/week	0.68	(0.27–1.67)	0.40	0.47	—	—	—
8–14 alcohol units/week	0.56	(0.29–1.59)	0.28		—	—	—
≤7 alcohol units/week (ref.)	1.00				—	—	—
ROC	AUC	CI 95%			AUC	CI 95%
Predictive value	0.72	(0.63–0.80)			0.75	(0.67–0.83)

Area under the ROC-curve (AUC).