2.4  Outcomes
The primary outcomes were: (1) recovery rate based on ALC and deterioration based on an increased NLR on day 7, 14, and 21 after admission; (2) need for ICU care within 14 days of hospital admission.
The absolute counts of peripheral blood lymphocytes and neutrophils within 24 h of hospital admission were set as baseline value. The formula for the recovery percentage or deteriorative percentage is described as:ALCorNLRday7,day14orday21--ALCorNLRbaselineALCorNLRbaseline×100%
The secondary outcomes were: (1) HAI; and (2) total length of hospital stay.