Correction to: BMC Public Health

https://doi.org/10.1186/s12889-019-7322-z

It was highlighted that the original article [1] contained an error in the flow chart in Fig. 1. The study population states that the study cohort is n = 9949 but the correct number is n = 9936. This Correction article shows the correct Fig. 1.

Fig. 1
figure 1

Study population