Body position for preventing ventilator-associated pneumonia for critically ill patients: a systematic review and network meta-analysis.

"Declarations Ethical approval and consent to participateNot applicable. Consent for publicationNot applicable. Competing interestsThe authors declare do not have competing interests. Competing interests The authors declare do not have competing interests."

"Funding This research was funded by a grant from the European Regional Development Fund (ERDF) [Fondo Europeo de Desarrollo Regional (FEDER), (DOCM 27/01/2021)]."

"This NMA was registered at the International Prospective Register of Systematic Reviews—PROSPERO (CRD42021247547). In addition, this study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Network-Meta-analyses (PRISMA–NMA) [], and we also followed the recommendations of the Cochrane Handbook for Systematic Reviews of Interventions []. Conclusions: Cautiously, semi-recumbent seems to be the best position to reduce VAP incidence, hospital length of stay and the duration of MV. Prone is the most effective position to reduce the risk of mortality and the ICU length of stay, but it showed no effect on the VAP incidence.: Registration PROSPERO CRD42021247547"