Factors associated with allergy traits around the 2nd year of life: a brazilian cohort study.
BMC Pediatr
; 22(1): 703, 2022 12 08.
Article
em En
| MEDLINE
| ID: mdl-36482361
ABSTRACT
BACKGROUND:
Allergic status has been strongly influenced by early exposures; however, allergic diseases are hard to measure in early life. Thus, this study proposed a latent variable allergy traits around the second year of life and analyzed pre- and perinatal factors associated with this phenomenon.METHODS:
The study used data from the BRISA birth cohort, Ribeirão Preto, Brazil (n = 3644). The theoretical model included family allergy (history of allergic rhinitis, atopic dermatitis, and asthma); gestational period variables (socioeconomic status, mother's skin color, pregestational body mass index - BMI, smoking, gestational diabetes, and hypertension); birth variables (gestational age, 5-minute Apgar score, birth weight, type of delivery), and early life factor (exclusive breast feeding). The outcome was allergy traits around the 2nd year of life, a latent variable deduced from the shared variance among medical diagnosis of allergic rhinitis, atopic dermatitis, and food allergy. The model was analyzed by structural equation modeling.RESULTS:
Higher socioeconomic status (SC = 0.256; p < 0.001) and higher family allergy values (SC = 1.224; p < 0.001) were associated with higher allergy trait values. Hypertension during pregnancy was associated with higher values (SC = 0.170; p = 0.022) and exclusive breast feeding (SC = -0.192; p < 0.001) with low allergy trait values.CONCLUSION:
Although socioeconomic and environmental factors were associated with allergy traits around the 2nd year of life, the family component of allergy was the exposure that best explained this outcome.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dermatite Atópica
/
Rinite Alérgica
Tipo de estudo:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child, preschool
/
Humans
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
BMC Pediatr
Assunto da revista:
PEDIATRIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Brasil