Correction to: J Public Health (Berl.): From Theory to Practice

Fig. 1
figure 1

Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow diagram of the study process

https://doi.org/10.1007/s10389-019-01042-y

The Fig. 1 was incompletely filled. The correction and corresponding data are shown below.

Addition to Fig. 1 “Records identified through database searching”: Cochrane library (n = 6).