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BIBTEX RIS

Correlation of salivary immunoglobulin A with Body Mass Index and fat percentage in overweight/obese children

2018; UNIVERSIDADE DE SÃO PAULO; Volume: 27; Linguagem: Inglês

10.1590/1678-7757-2018-0088

ISSN

1678-7765

Autores

Mayra Manoella Perez, Juliana Souza Pessoa, Ana Lídia Ciamponi, Michèle Baffi Diniz, Maria Teresa Botti Rodrigues Santos, Heloisa Helena de Oliveira, Renata Gorjão, Renata de Oliveira Guaré,

Tópico(s)

Diabetes and associated disorders

Resumo

Obesity is considered a risk factor for periodontal health due to the low- grade inflammation promoted by the increased adipose tissue. Objective: This study aimed to determine correlations and associations between gingival inflammation (Simplified Oral Hygiene Index, and Gingival Index), salivary immunoglobulin A (s-IgA), and salivary parameters (salivary flow and osmolality) in normal-weight and overweight/obese children. Material and Methods: Ninety-one children, aged 6 to 12 years old (8.6±1.9 years), were divided into two groups according to their body mass index (BMI), circumferences, skinfold measurements and body fat percentage: normal- weight group (NWG; n =50) and overweight/obese group (OG; n =41). A calibrated examiner performed the clinical examination using the Simplified Oral Hygiene Index, Gingival Index, and salivary collection. Data analysis included descriptive statistics and association tests ( p <0.05). Results: OG presented statistically higher s-IgA values compared with NWG, especially among the obese children ( p <0.05). Significant positive correlations between s-IgA and salivary osmolality in OG ( p <0.05), and between s-IgA and BMI values ( p <0.05) and body fat percentage ( p <0.05) were observed among all the children. Effect size varied from moderate for s-IgA values ( d =0.57) to large for BMI ( d =2.60). Conclusion: Gingival inflammation and salivary parameters were similar for NWG and OG; however, s-IgA presented higher values in OG, with correlations between BMI and body fat percentage.

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