Fig. 1
Stepped wedge plan and recruitment during 17-months study period. 1the columns represent the study periods of the stepped wedge study, one study period was 24 days (data collection from Jan 2017 to May 2018). 2During the summer, recruitment was paused for two periods. 3H: hospital; H1 shaded dark grey, H2 shaded lighter grey, H3 shaded lightest grey; the order of the implementation was randomized over all three settings. 4Number of recruited patients in the respective cell (time period on the respective ward). 5Date of actual ANtiPain training for intervention nurses on respective ward, steps were planned every 24 days. 6Shaded areas indicate that no patient was recruited on that ward during that time