Reduction of the need for orotracheal intubation and invasive mechanical ventilation in patients submitted to early prone position; verified by measuring epidemiological variables such as relative risk; absolute risk and the number needed to treat; based on the finding of a difference of at least 10 per between groups.;Fewer deaths in patients submitted to early prone position; verified by measuring epidemiological variables such as relative risk; absolute risk and the number needed to treat; based on the observation of a difference of at least 10 percent between the groups.

Reduction of the need for orotracheal intubation and invasive mechanical ventilation in patients submitted to early prone position; verified by measuring epidemiological variables such as relative risk; absolute risk and the number needed to treat; based on the finding of a difference of at least 10 per between groups.;Fewer deaths in patients submitted to early prone position; verified by measuring epidemiological variables such as relative risk; absolute risk and the number needed to treat; based on the observation of a difference of at least 10 percent between the groups.