Anne B Chang1, Peter G Gibson2, Carol Willis3, Helen L Petsky3, John G Widdicombe4, I Brent Masters3, Colin F Robertson5. 1. Queensland Children's Respiratory Centre and Children's Medical Research Institute, Royal Children's Hospital, Brisbane, QLD, Australia; Child Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia. Electronic address: annechang@ausdoctors.net. 2. Department of Respiratory Medicine, John Hunter Hospital, University of Newcastle, NSW, Australia. 3. Queensland Children's Respiratory Centre and Children's Medical Research Institute, Royal Children's Hospital, Brisbane, QLD, Australia. 4. University of London, London, England. 5. Department of Respiratory Medicine, Royal Children's Hospital, Melbourne, Murdoch Children's Research Institute, University of Melbourne, VIC, Australia.
Abstract
BACKGROUND: Despite the commonality of cough and its burden, there are no published data on the relationship between atopy or sex on objectively measured cough frequency or subjective cough scores in children. In 202 children with and without cough, we determined the effect of sex and atopy on validated cough outcome measurements (cough receptor sensitivity [CRS], objective cough counts, and cough scores). We hypothesized that in contrast to adult data, sex does not influence cough outcome measures, and atopy is not a determinant of these cough measurements. METHODS: We combined data from four previous studies. Atopy (skin prick test), the concentration of capsaicin causing two and five or more coughs (C2 and C5, respectively), objectively measured cough frequency, and cough scores were determined and their relationship explored. The children's (93 girls, 109 boys) mean age was 10.6 years (SD 2.9), and 56% had atopy. RESULTS: In multivariate analysis, CRS was influenced by age (C2 coefficient, 5.9; P = .034; C5 coefficient, 29.1; P = .0001). Atopy and sex did not significantly influence any of the cough outcomes (cough counts, C2, C5, cough score) in control subjects and children with cough. CONCLUSIONS: Atopy does not influence important cough outcome measures in children with and without chronic cough. However, age, but not sex, influences CRS in children. Unlike adult data, sex does not affect objective counts or cough score in children with and without chronic cough. Studies on cough in children should be age matched, but matching for atopic status and sex is less important.
BACKGROUND: Despite the commonality of cough and its burden, there are no published data on the relationship between atopy or sex on objectively measured cough frequency or subjective cough scores in children. In 202 children with and without cough, we determined the effect of sex and atopy on validated cough outcome measurements (cough receptor sensitivity [CRS], objective cough counts, and cough scores). We hypothesized that in contrast to adult data, sex does not influence cough outcome measures, and atopy is not a determinant of these cough measurements. METHODS: We combined data from four previous studies. Atopy (skin prick test), the concentration of capsaicin causing two and five or more coughs (C2 and C5, respectively), objectively measured cough frequency, and cough scores were determined and their relationship explored. The children's (93 girls, 109 boys) mean age was 10.6 years (SD 2.9), and 56% had atopy. RESULTS: In multivariate analysis, CRS was influenced by age (C2 coefficient, 5.9; P = .034; C5 coefficient, 29.1; P = .0001). Atopy and sex did not significantly influence any of the cough outcomes (cough counts, C2, C5, cough score) in control subjects and children with cough. CONCLUSIONS: Atopy does not influence important cough outcome measures in children with and without chronic cough. However, age, but not sex, influences CRS in children. Unlike adult data, sex does not affect objective counts or cough score in children with and without chronic cough. Studies on cough in children should be age matched, but matching for atopic status and sex is less important.
Authors: Anne B Chang; John J Oppenheimer; Miles Weinberger; Cameron C Grant; Bruce K Rubin; Richard S Irwin Journal: Chest Date: 2017-06-21 Impact factor: 9.410
Authors: Kian Fan Chung; Lorcan McGarvey; Woo-Jung Song; Anne B Chang; Kefang Lai; Brendan J Canning; Surinder S Birring; Jaclyn A Smith; Stuart B Mazzone Journal: Nat Rev Dis Primers Date: 2022-06-30 Impact factor: 65.038
Authors: Lorcan McGarvey; Bruce K Rubin; Satoru Ebihara; Karen Hegland; Alycia Rivet; Richard S Irwin; Donald C Bolser; Anne B Chang; Peter G Gibson; Stuart B Mazzone Journal: Chest Date: 2021-04-24 Impact factor: 10.262
Authors: Helen L Petsky; Jennifer Anne Kynaston; Margaret McElrea; Catherine Turner; Alan Isles; Anne B Chang Journal: Front Pediatr Date: 2013-10-24 Impact factor: 3.418
Authors: Maja Jurca; Alban Ramette; Cristian M Dogaru; Myrofora Goutaki; Ben D Spycher; Philipp Latzin; Erol A Gaillard; Claudia E Kuehni Journal: PLoS One Date: 2017-05-24 Impact factor: 3.240
Authors: Hajar Ali; Collin Brooks; Julian Crane; Richard Beasley; Stephen Holgate; Peter Gibson; Philip Pattemore; Yu-Chieh Tzeng; Thorsten Stanley; Neil Pearce; Jeroen Douwes Journal: BMJ Open Respir Res Date: 2021-11