title: Clinical predictors of chest radiographic abnormalities in young children hospitalized with bronchiolitis: a single center study.
abstract: OBJECTIVE
  Chest radiography is often performed on patients hospitalized with typical clinical manifestations of bronchiolitis. We aimed to determine the proportion of subjects with pathologic chest radiographic findings and the clinical predictors associated with pathologic chest radiographic findings in young children admitted with the typical presentation of bronchiolitis.
  
  
  METHODS
  We obtained the following data at admission: sex, age, neonatal history, past history of hospitalization for respiratory illnesses, heart rate, respiratory rate, the presence of fever, total duration of fever, oxygen saturation, laboratory parameters (i.e., complete blood cell count, high-sensitivity C-reactive protein [hs-CRP], etc.), and chest radiography.
  
  
  RESULTS
  The study comprised 279 young children. Of these, 26 had a chest radiograph revealing opacity (n=24) or atelectasis (n=2). Multivariate logistic regression analysis showed that after adjustment for confounding factors, the clinical predictors associated with pathologic chest radiographic findings in young children admitted with bronchiolitis were elevated hs-CRP level (>0.3 mg/dL) and past history of hospitalization for respiratory illnesses (allP<0.05).
  
  
  CONCLUSIONS
  The current study suggests that chest radiographs in young children with typical clinical manifestations of bronchiolitis have limited value. Nonetheless, young children with clinical factors such as high hs-CRP levels at admission or past history of hospitalization for respiratory illnesses may be more likely to have pathologic chest radiographic findings.
authors.affiliation: Department of Pediatrics, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
authors.forename: Ga Ram
authors.initials: GR
authors.lastname: Kim
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Min Sun
authors.initials: MS
authors.lastname: Na
authors.affiliation: Department of Pediatrics, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
authors.forename: Kyung Suk
authors.initials: KS
authors.lastname: Baek
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Seung Jin
authors.initials: SJ
authors.lastname: Lee
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Kyung Suk
authors.initials: KS
authors.lastname: Lee
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Jung
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Hye Mi
authors.initials: HM
authors.lastname: Jee
authors.affiliation: Department of Radiology, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
authors.forename: Tae Hee
authors.initials: TH
authors.lastname: Kwon
authors.affiliation: Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Man Yong
authors.initials: MY
authors.lastname: Han
authors.affiliation: Department of Pediatrics, CHA Gangnam Medical Center, CHA University, Seoul, Korea.
authors.forename: Youn Ho
authors.initials: YH
authors.lastname: Sheen
keywords: Bronchiolitis; C-reactive protein; Radiography