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No association between overweight and asthma or allergy in adolescence after wheezing in infancy

Authors


Correspondence

Marja Ruotsalainen, Department of Pediatrics, Kuopio University Hospital, FIN-70210 Kuopio, Finland.

Tel: +358 44 7176050 |

Fax: +358 17 172410 |

Email: marja.ruotsalainen@kuh.fi

Abstract

Aims

The aim of the study was to evaluate the association between weight status and asthma, allergy and respiratory symptoms in adolescents with bronchiolitis in infancy.

Subjects and methods

At age 15–18 years, a questionnaire was sent to 96 study subjects hospitalized for wheezing at age <24 months and followed up subsequently. Sixty-seven (70%) of them answered. Weight and height data for body mass index (BMI) calculation were available in 60 (63%) cases. Asthma, allergy, respiratory symptoms and the use of asthma medication were compared between overweight or obese and normal weight groups constructed by age- and sex-specific BMI standard deviation scores (BMI-SDS). Population controls matched for sex, and birth month and place, were recruited for this study phase at age 15–18 years.

Results

Eleven (18.3%) study subjects were overweight (BMI-SDS >0.78 in males and >1.16 in females) and only 3 (5.0%) were obese (BMI-SDS >1.70 in males and >2.10 in females) at 16.5 (median) years of age. Overweight or obesity had no significant association with doctor-diagnosed or self-reported asthma, allergy or the use of inhaled corticosteroids. The negative results were confirmed by adjusted analyses.

Conclusion

Weight status had no association with asthma or allergy in adolescence after wheezing in infancy.

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