PMID- 30088367 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2092-7355 (Print) IS - 2092-7363 (Electronic) IS - 2092-7355 (Linking) VI - 10 IP - 5 DP - 2018 Sep TI - Prevalence, Risk Factors and Cutoff Values for Bronchial Hyperresponsiveness to Provocholine in 7-Year-Old Children. PG - 466-477 LID - 10.4168/aair.2018.10.5.466 [doi] AB - BACKGROUND: A US Food and Drug Administration (FDA)-approved drug methacholine chloride (Provocholine(R)) was recently introduced to Korea where it is now widely used in clinical practice. We aimed to evaluate the prevalence, risk factors and cutoff value of bronchial hyperresponsiveness (BHR) to Provocholine in 7-year-old children. METHODS: Six hundred and thirty-three children from the Panel Study on Korean Children who visited 16 regional hospitals were evaluated. Skin prick tests, spirometry and bronchial provocation tests for Provocholine as well as a detailed history and physical examinations were performed. The bronchial provocation test was reliably performed on 559 of these children. RESULTS: The prevalence of ever-diagnosed asthma via medical records was 7.7%, and that of current asthma (wheezy episode in the last 12 months + diagnosed asthma by physicians) was 3.2%. The prevalence of BHR to Provocholine was 17.2% and 25.8%, respectively, for a PC20 < 8 and < 16 mg/mL. The risk factors for BHR (PC20 < 16 mg/mL) were atopic dermatitis diagnosis and current dog ownership, whereas those for current asthma were allergy rhinitis diagnosis, a history of bronchiolitis before the age of 3, recent use of analgesics/antipyretics and maternal history of asthma. The BHR prevalence trend showed an increase along with the increased immunoglobulin E (IgE) quartile. The cutoff value of PC20 for the diagnosis of current asthma in children at age 7 was 5.8 mg/mL (sensitivity: 47.1%, specificity: 87.4%). CONCLUSIONS: BHR to Provocholine (PC20 < 8 mg/mL) was observed in 17.2% of 7-year-olds children from the general population and the cutoff value of PC20 for the diagnosis of current asthma was 5.8 mg/mL in this age group. The risk factors for BHR and current asthma showed discrepancies suggesting different underlying mechanisms. Bronchial provocation testing with Provocholine will be a useful clinical tool in the future. CI - Copyright (c) 2018 The Korean Academy of Asthma, Allergy and Clinical Immunology . The Korean Academy of Pediatric Allergy and Respiratory Disease. FAU - Jung, Sungsu AU - Jung S AUID- ORCID: 0000-0002-0559-4982 AD - Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Suh, Dong In AU - Suh DI AUID- ORCID: 0000-0002-7817-8728 AD - Department of Pediatrics, Seoul National University Hospital, Seoul, Korea. FAU - Lee, So Yeon AU - Lee SY AUID- ORCID: 0000-0002-2499-0702 AD - Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Yoon, Jisun AU - Yoon J AUID- ORCID: 0000-0002-4904-9118 AD - Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Cho, Hyun Ju AU - Cho HJ AUID- ORCID: 0000-0003-4282-4000 AD - Department of Pediatrics, International St. Mary's Hospital, Catholic Kwandong University Hospital, Incheon, Korea. FAU - Kim, Young Ho AU - Kim YH AUID- ORCID: 0000-0001-7120-8130 AD - Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. FAU - Yang, Song I AU - Yang SI AUID- ORCID: 0000-0002-9648-4585 AD - Department of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Korea. FAU - Kwon, Ji Won AU - Kwon JW AUID- ORCID: 0000-0002-5129-928X AD - Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea. FAU - Jang, Gwang Cheon AU - Jang GC AD - Department of Pediatrics, National Health Insurance Service Ilsan Hospital, Goyang, Korea. FAU - Sun, Yong Han AU - Sun YH AUID- ORCID: 0000-0003-1527-6782 AD - Department of Pediatrics, Gachon University Gil Medical Center, Incheon, Korea. FAU - Woo, Sung Il AU - Woo SI AUID- ORCID: 0000-0003-1896-6279 AD - Department of Pediatrics, College of Medicine, Chungbuk National University, Cheongju, Korea. FAU - Youn, You Sook AU - Youn YS AD - Department of Pediatrics, The Catholic University of Korea College of Medicine, Daejeon, Korea. FAU - Park, Kang Seo AU - Park KS AUID- ORCID: 0000-0003-3983-9770 AD - Department of Pediatrics, Presbyterian Medical Center, Jeonju, Korea. FAU - Cho, Hwa Jin AU - Cho HJ AUID- ORCID: 0000-0002-2458-8529 AD - Department of Pediatrics, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea. FAU - Kook, Myung Hee AU - Kook MH AD - Department of Pediatrics, Gwangju Veterans Hospital, Gwangju, Korea. FAU - Yi, Hye Ryoung AU - Yi HR AD - Department of Pediatrics, Gwangju Veterans Hospital, Gwangju, Korea. FAU - Chung, Hai Lee AU - Chung HL AUID- ORCID: 0000-0002-5364-5318 AD - Department of Pediatrics, Catholic University of Daegu School of Medicine, Daegu, Korea. FAU - Kim, Ja Hyeong AU - Kim JH AUID- ORCID: 0000-0003-0691-1924 AD - Department of Pediatrics, Ulsan University Hospital, Ulsan, Korea. FAU - Kim, Hyung Young AU - Kim HY AUID- ORCID: 0000-0001-8591-1783 AD - Department of Pediatrics, Pusan National University Yangsan Hospital, Yangsan, Korea. FAU - Jung, Jin A AU - Jung JA AD - Department of Pediatrics, Dong-A University College of Medicine, Busan, Korea. FAU - Woo, Hyang Ok AU - Woo HO AUID- ORCID: 0000-0001-8849-9341 AD - Department of Pediatrics, Health Science Institute, Gyeongsang National University College of Medicine, Jinju, Korea. FAU - Hong, Soo Jong AU - Hong SJ AUID- ORCID: 0000-0003-1409-2113 AD - Department of Pediatrics, Childhood Asthma Atopy Center, Environmental Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. sjhong@amc.seoul.kr. LA - eng GR - 2015-ER6601-00/Korea Centers for Disease Control & Prevention/ GR - Korea Institute of Child Care and Education/ PT - Journal Article PL - Korea (South) TA - Allergy Asthma Immunol Res JT - Allergy, asthma & immunology research JID - 101518382 PMC - PMC6082814 OTO - NOTNLM OT - Bronchial hyperreactivity OT - ROC curve OT - asthma OT - prevalence OT - risk factors COIS- There are no financial or other issues that might lead to conflict of interest. EDAT- 2018/08/09 06:00 MHDA- 2018/08/09 06:01 PMCR- 2018/09/01 CRDT- 2018/08/09 06:00 PHST- 2017/12/07 00:00 [received] PHST- 2018/03/30 00:00 [revised] PHST- 2018/04/20 00:00 [accepted] PHST- 2018/08/09 06:00 [entrez] PHST- 2018/08/09 06:00 [pubmed] PHST- 2018/08/09 06:01 [medline] PHST- 2018/09/01 00:00 [pmc-release] AID - 10.466 [pii] AID - 10.4168/aair.2018.10.5.466 [doi] PST - ppublish SO - Allergy Asthma Immunol Res. 2018 Sep;10(5):466-477. doi: 10.4168/aair.2018.10.5.466.