title: Correlations between pulmonary function and childhood asthma control test results in 5-11-year-old children with asthma.
abstract: OBJECTIVE
  We examined correlations between the two asthma assessment tools, pulmonary function tests, and Childhood Asthma Control Test (C-ACT) scores, in 5-11-year-old children with asthma to determine if the C-ACT scores could predict pulmonary function test results.
  
  
  METHODS
  A total of 172 children with asthma aged 5-11 years completed C-ACT questionnaires and underwent pulmonary function testing. Correlations between these test results were examined. Patients were also placed into two groups, C-ACT scores ≤19 and >19, to determine if patients with scores >19 had better pulmonary function test results.
  
  
  RESULTS
  Weak correlations were found between pulmonary function test results and childhood asthma control test scores in 5-11-year-old children with asthma, with or without the use of an asthma controller. These correlations included: 0.061 for FEV1 [confidence interval (CI): -0.022-0.049] and 0.074 for MMEF (CI: -0.013-0.037). The proportions of children with C-ACT test scores ≤19 group and those with scores >19 group were not significantly different.
  
  
  CONCLUSIONS
  Correlations between C-ACT scores and pulmonary function test results were poor for children aged 5-11 years with asthma. FEV1, FVC, FEF25, FEF50, FEF75, MMEF, and PEFR were not significantly correlated with C-ACT scores.
authors.affiliation: Division of Pediatric Pulmonology, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Ming-Sheng
authors.initials: MS
authors.lastname: Lee
authors.affiliation: Division of Pediatric Immunology, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Jun-Kai
authors.initials: JK
authors.lastname: Kao
authors.affiliation: Division of Pediatric Neonatology, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Cheng-Han
authors.initials: CH
authors.lastname: Lee
authors.affiliation: Division of Pediatric Neonatology, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Lon-Yen
authors.initials: LY
authors.lastname: Tsao
authors.affiliation: Division of Pediatric Pulmonology, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Han-Yao
authors.initials: HY
authors.lastname: Chiu
authors.affiliation: Department of Pediatrics, Yuan Sheng Hospital, Yuanlin, Taiwan.
authors.forename: Yu-Ching
authors.initials: YC
authors.lastname: Tseng
authors.affiliation: Respiratory Therapy Section for Children, Changhua Christian Hospital, Changhua, Taiwan. Electronic address: 107484@cch.org.tw.
authors.forename: Liang-Mei
authors.initials: LM
authors.lastname: Lin
mesh_terms: D000402:Airway Obstruction / Q000175:diagnosis / Q000503:physiopathology* / Q000517:prevention & control; D001249:Asthma / Q000175:diagnosis / Q000503:physiopathology* / Q000517:prevention & control; D002648:Child; D002675:Child, Preschool; D005260:Female; D006306:Health Surveys; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D012129:Respiratory Function Tests; D011795:Surveys and Questionnaires
keywords: Childhood Asthma Control Test (C-ACT); asthma; forced expiratory volume in the first second (FEV(1)); lung function test; maximal mid-expiratory flow rate (MMEF); pediatric; pulmonary function; spirometry