Trial design and participants
MAY
We performed a post-hoc before-after analysis of the CLIP-ID (climate and pathogens-impact of decolonisation) study. Information on trial design and participants can be found elsewhere [The post-hoc before-after analysis consisted of a 12-months baseline (water and soap) period and a 12-months intervention period (chlorhexidine or octenidine or water and soap). The baseline period lasted from February 1, 2016 to January 31, 2017 and the intervention period from February 1, 2017 to January 31, 2018 in the octenidine and control group. In the chlorhexidine group, baseline (June 1, 2016 to May 31, 2017) and intervention period (June 1, 2017 to May 31, 2018) started four months later due to difficulties in the supply chain.