Study design
This is a retrospective cohort study conducted at Soroka University
Medical Center (SUMC), a tertiary hospital in southern Israel where
approximately 450 children are hospitalized annually due to RSV
bronchiolitis, many of whom undergo initial workup, including CRP
levels. Clinical, demographic, and laboratory data were extracted from
Clalit Health Services (CHS) electronic medical records using Clalit’s
Data sharing platform powered by MD-clone
(www.mdclone.com). The institution’s
computational unit extracted data on mechanical ventilation, oxygen
supply, and oxygen saturation of the enrolled patients. The study
protocol was approved by the local ethical review board of SUMC
(0296-21-SOR).