Table 3.

Meta-regression for the effects of year of data collection and publication

Variable	Potential confounder	Coefficient	SE	P value
All age groups
Prevalence of overweight	Year of data collection	0.005	0.003	0.07
	Year of publication	0.008	0.004	0.04
Prevalence of obesity	Year of data collection	0.002	0.001	0.14
	Year of publication	0.004	0.002	0.11
Prevalence of overweight and obesity	Year of data collection	0.006	0.004	0.14
	Year of publication	0.009	0.005	0.10
≤ 18 years
Prevalence of overweight	Year of data collection	0.003	0.001	0.01
	Year of publication	0.001	0.002	0.45
Prevalence of obesity	Year of data collection	0.0005	0.001	0.72
	Year of publication	− 0.001	0.002	0.66
Prevalence of overweight and obesity	Year of data collection	0.005	0.003	0.04
	Year of publication	0.003	0.004	0.41
> 18 years
Prevalence of overweight	Year of data collection	− 0.000009	0.003	0.99
	Year of publication	0.0006	0.004	0.88
Prevalence of obesity	Year of data collection	0.003	0.001	0.04
	Year of publication	0.001	0.003	0.61
Prevalence of overweight and obesity	Year of data collection	− 0.002	0.005	0.62
	Year of publication	− 0.0007	0.006	0.90

SE, standard error

Values in bold indicates P < 0.05