Fig. 1

Pooled adjusted prevalence of participation in leisure-time physical activity (N = 26,022). Prevalence: pooled adjusted prevalence; 95%CI: 95% confidence interval; N: number of studies; I-squared: I² statistic indicates proportion of variation due to heterogeneity; Underweight (BMI: < 18.5 kg/m²); Healthy weight (BMI: 18.5–24.9 kg/m²); Overweight (BMI: 25.0–29.9 kg/m²); Obese (BMI: ≥ 30.0 kg/m²). Residence location: N = 20,022. Pooled adjusted prevalence estimates are based on two-step individual pooled data meta-analysis of Poisson regression models adjusted for sex, age and clustering at each level of sampling. Sex: pooled adjusted prevalence estimates for sex are based on two-step individual pooled data meta-analysis of Poisson regression models adjusted for age and clustering at each level of sampling. Age group: pooled adjusted prevalence estimates for age group are based on two-step individual pooled data meta-analysis of Poisson regression models adjusted for sex and clustering at each level of sampling.