Perinatal and family factors associated with preadolescence overweight/obesity in Greece: The GRECO study

Objective: To explore associations of perinatal and family factors with preadolescence overweight and obesity in a sample of Greek schoolchildren. Methods: A nationwide cross-sectional study among 2093 students (10.9 ± 0.72 years, 44.9% boys) and their parents were conducted. Anthropometric (e.g., height, weight, mother’s body mass index (BMI) at the time of the study and at conception), socio-demographic (e.g., age, education, socio-economic status), diet and other major lifestyle characteristics (e.g., smoking, alcohol intake, physical activity and inactivity) and perinatal factors (e.g., breast- and formula-feeding) were collected with validated questionnaires. Height and weight of students were measured. Overweight/obesity was classified using IOTF cut-offs. Multivariable logistic and linear regression analyses were used to identify major independent factors of overweight/obesity among preadolescents and factors related with the percentage change of mother’s BMI, respectively. Results: Increased age at pregnancy [odds ratios (OR) = 0.95, 95% Confidence Interval (CI): 0.93–0.97], higher BMI at conception (OR = 1.17, 95% CI: 1.12–1.22) and heavy smoking (OR = 2.02, 95% CI: 1.23–3.33) were positively associated with child’s overweight/obesity status. Moreover, mother’s age and TV viewing, indicating inactivity, were the strongest factors of the percentage increase in mother’s BMI (b ± se = 0.23 ± 0.07, p = 0.002; b ± se = 0.32 ± 0.10, p = 0.002, respectively). Conclusions: Preadolescent obesity is associated with mother’s pre-pregnancy weight, age and heavy smoking at conception and mother’s BMI change after gestation.

Abstract licence: CC BY-NC-ND

• The association between maternal body mass index and child obesity: A systematic review and meta-analysis · 2019

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