title: Validation of the Korean version of the European Community Respiratory Health Survey screening questionnaire for use in epidemiologic studies for adult asthma.
abstract: BACKGROUND
  Standardized questionnaire is one of key instruments for general population surveys.
  
  
  OBJECTIVE
  The present study aimed to develop and validate the Korean version of the European Community Respiratory Health Survey (ECRHS) screening questionnaire for adult asthma surveys.
  
  
  METHODS
  The ECRHS screening questionnaire was translated into Korean language according to the international criteria. Study participants were prospectively recruited from six referral hospitals and one health check-up center. Comprehensibility of the translation was tested in a pilot study of 10 patients. The reliability was evaluated by internal consistency and test-retest repeatability. Validity was assess with regard to physician-diagnosed asthma.
  
  
  RESULTS
  A total of 100 adult asthma patients and 134 volunteers were recruited. Reliability was examined for 10 items in 100 asthmatics; Cronbach α coefficients were 0.84, and test-retest repeatability was good (Cohen κ coefficient, 0.71-1.00). Validity was assessed for 8 items in 234 participants; in particular, 'recent wheeze' showed a high sensitivity (0.89) for physician-diagnosed asthma. 'Recent asthma attack' and 'current asthma medication' showed high specificity (0.96-0.98).
  
  
  CONCLUSIONS
  The present study demonstrated that the Korean version of the ECRHS screening questionnaire was comprehensible, reliable and valid. We suggest the questionnaire to be utilized in further epidemiological studies for asthma in Korean adult populations.
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Woo-Jung
authors: WJ
authors: Song
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 135-984, Korea.
authors: So-Hee
authors: SH
authors: Lee
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Min-Gyu
authors: MG
authors: Kang
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Ju-Young
authors: JY
authors: Kim
authors: Department of Internal Medicine, Inje University Pusan Paik Hospital, Busan 614-735, Korea.
authors: Mi-Young
authors: MY
authors: Kim
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan 626-870, Korea.
authors: Eun-Jung
authors: EJ
authors: Jo
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Suh-Young
authors: SY
authors: Lee
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan 626-870, Korea.
authors: Seung-Eun
authors: SE
authors: Lee
authors: Department of Internal Medicine, Kyungpook National University Medical School, Daegu 700-842, Korea.
authors: Min-Hye
authors: MH
authors: Kim
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Min-Suk
authors: MS
authors: Yang
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 463-707, Korea.
authors: Sae-Hoon
authors: SH
authors: Kim
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Hye-Ryun
authors: HR
authors: Kang
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan 626-870, Korea.
authors: Hye-Kyung
authors: HK
authors: Park
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Heung-Woo
authors: HW
authors: Park
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 463-707, Korea.
authors: Yoon-Seok
authors: YS
authors: Chang
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. ; Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul 135-984, Korea.
authors: Sun-Sin
authors: SS
authors: Kim
authors: Department of Internal Medicine, Kyungpook National University Medical School, Daegu 700-842, Korea.
authors: Jong-Myung
authors: JM
authors: Lee
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Kyung-Up
authors: KU
authors: Min
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
authors: Sang-Heon
authors: SH
authors: Cho
keywords: Asthma; Epidemiology; Questionnaires
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