It is expected to find a reduction in the intubation rate in the group undergoing prone positioning in 14 days.The primary outcomes will be evaluated by Bayesian logistic regression models and the results presented by the odds ratios.;It is expected to find a reduction in mortality in the group undergoing prone positioning in 14 days.The primary outcomes will be evaluated by Bayesian logistic regression models and the results presented by the odds ratios.

It is expected to find a reduction in the intubation rate in the group undergoing prone positioning in 14 days.The primary outcomes will be evaluated by Bayesian logistic regression models and the results presented by the odds ratios.;It is expected to find a reduction in mortality in the group undergoing prone positioning in 14 days.The primary outcomes will be evaluated by Bayesian logistic regression models and the results presented by the odds ratios.