a positive trendP = .057
The crude in-hospital mortality of ward patients decreased from 21% (n = 510) in wave 1 to 15% (n = 74) in wave 4 ( P < .001), while the crude ICU mortality in patients first admitted to the ward showed a positive trend (29%, n = 88, in wave 1 to 16%, n = 14, in wave 4; P = .057) ( Table 1 ).