Revista Paulista de Pediatria
Print version ISSN 0103-0582
Rev. paul. pediatr. vol.31 no.2 São Paulo June 2013
http://dx.doi.org/10.1590/S0103-05822013000200002
ORIGINAL ARTICLE
Obesity and asthma: association or epiphenomenon?
Larissa Smiljanic AndradeI; Andrea Cristina T. B. AraújoI; Tatiana Moraes CauduroI; Letícia Abe WatanabeII; Ana Paula B. M. CastroIII; Cristina Miuki A. JacobIV; Antonio Carlos PastorinoIII
IMédica em regime de complementação especializada em Alergia e Imunologia do Departamento de Pediatria da FMUSP, São Paulo, SP, BrasilIIMédica Colaboradora da Unidade de Alergia e Imunologia do Departamento de Pediatria da FMUSP, São Paulo, SP, Brasil
IIIDoutor em Ciências pela FMUSP; Assistente da Unidade de Alergia e Imunologia do Departamento de Pediatria da FMUSP, São Paulo, SP, Brasil
IVLivre-Docente pela FMUSP; Professora-Associada e Chefe da Unidade de Alergia e Imunologia do Departamento de Pediatria da FMUSP, São Paulo, SP, Brasil
Endereço para correspondência
ABSTRACT
OBJECTIVE: To relate obesity and asthma by comparing gender, age, initial classification of asthma, clinical control, basal forced expiratory volume in one second (FEV1) and forced expiratory flow between 25 and 75% (FEF25-75%) with rates of body mass index (BMI) in asthmatic adolescents.
METHODS: Cross-sectional study involving 120 asthmatics patients (1.9 male: 1 female) with a mean age of 14.1 years (9 to 20.1 years of age), classified according to asthma severity and control, and evaluated by spirometry using their basal FEV1 and FEF25–75%. The data were described by frequency, mean and standard deviation or median and range and analyzed by ANOVA, unpaired t test, Fischer's exact test, Kruskal-Wallis and Pearson's correlation, considering significant p<0 .05.="" br="">RESULTS: There was no difference between gender in relation to the initial classification and the level of asthma control; 91.7% (100 cases) received initial classification as persistent and 106 cases (88.3%) were partially or totally controlled. There was no statistical difference between controlled patients and the others in relation to BMI. No significant correlations were found between zBMI and FEV1 and between zBMI and FEF25–75%, analyzing all patients and only patients with overweight or obese.
CONCLUSIONS: In this study, no significant correlation was found between overweight/obesity and asthma using clinical, anthropometric and spirometric parameters.
METHODS: Cross-sectional study involving 120 asthmatics patients (1.9 male: 1 female) with a mean age of 14.1 years (9 to 20.1 years of age), classified according to asthma severity and control, and evaluated by spirometry using their basal FEV1 and FEF25–75%. The data were described by frequency, mean and standard deviation or median and range and analyzed by ANOVA, unpaired t test, Fischer's exact test, Kruskal-Wallis and Pearson's correlation, considering significant p<0 .05.="" br="">RESULTS: There was no difference between gender in relation to the initial classification and the level of asthma control; 91.7% (100 cases) received initial classification as persistent and 106 cases (88.3%) were partially or totally controlled. There was no statistical difference between controlled patients and the others in relation to BMI. No significant correlations were found between zBMI and FEV1 and between zBMI and FEF25–75%, analyzing all patients and only patients with overweight or obese.
CONCLUSIONS: In this study, no significant correlation was found between overweight/obesity and asthma using clinical, anthropometric and spirometric parameters.
Key-words: adolescent; obesity; overweight; asthma; spirometry.
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