Fig. 1From: How reliable is internet-based self-reported identity, socio-demographic and obesity measures in European adults?Bland–Altman plots illustrating the agreement between self-reported (SR) and measured a height, b weight, c BMI and the corresponding means estimated by the two methods across all countries. Solid lines are mean differences, and dotted lines are the lower and upper 95 % limits of agreements; red lines illustrate the regression line for differences in measurements against the mean of both SR and VS measurementsBack to article page