Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12889-018-6217-8/MediaObjects/12889_2018_6217_Fig1_HTML.png)
Flow diagram of patient categorization into FA10 and non-FA. FA10 = the top decile of attenders (frequent attender 10%, FA10). non-FA = patients that were never in the top decile were considered as a reference group, non-frequent attenders
Flow diagram of patient categorization into FA10 and non-FA. FA10 = the top decile of attenders (frequent attender 10%, FA10). non-FA = patients that were never in the top decile were considered as a reference group, non-frequent attenders