期刊
BRITISH JOURNAL OF NUTRITION
卷 127, 期 7, 页码 1073-1085出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114521001720
关键词
Infant feeding; Dietary index; Dietary guidelines; Child obesity; Waist circumference
资金
- New Zealand Ministries of Social Development, Health, Education and Justice
- Ministry of Business, Innovation and Employment
- Ministry for Pacific Peoples
- Ministry for Women
- Social Policy Evaluation and Research Unit
- Te Puni Kokiri
- New Zealand Police
- Sport New Zealand
- Housing New Zealand Corporation
- Office of the Health and Disability Commissioner
- University of Auckland
- Auckland UniServices Limited
- Health Research Council of New Zealand
- Statistics New Zealand
- Office of the Children's Commissioner
- Office of Ethnic Communities
This study used a nationally generalisable birth cohort data to investigate the adherence to dietary guidelines among infants, and found that most infants did not meet the national Infant Feeding Guidelines. Maternal characteristics were found to have strong associations with children's overweight/obesity/central adiposity, confirming the construct validity of the Infant Feeding Index.
Using data from a nationally generalisable birth cohort, we aimed to: (i) describe the cohort's adherence to national evidence-based dietary guidelines using an Infant Feeding Index (IFI) and (ii) assess the IFI's convergent construct validity, by exploring associations with antenatal maternal socio-demographic and health behaviours and with child overweight/obesity and central adiposity at age 54 months. Data were from the Growing Up in New Zealand cohort (n 6343). The IFI scores ranged from zero to twelve points, with twelve representing full adherence to the guidelines. Overweight/obesity was defined by BMI-for-age (based on the WHO Growth Standards). Central adiposity was defined as waist-to-height ratio > 90th percentile. Associations were tested using multiple linear regression and Poisson regression with robust variance (risk ratios, 95 % CI). Mean IFI score was 8 center dot 2 (sd 2 center dot 1). Maternal characteristics explained 29 center dot 1 % of variation in the IFI score. Maternal age, education and smoking had the strongest independent relationships with IFI scores. Compared with children in the highest IFI tertile, girls in the lowest and middle tertiles were more likely to be overweight/obese (1 center dot 46, 1 center dot 03, 2 center dot 06 and 1 center dot 56, 1 center dot 09, 2 center dot 23, respectively) and boys in the lowest tertile were more likely to have central adiposity (1 center dot 53, 1 center dot 02, 2 center dot 30) at age 54 months. Most infants fell short of meeting national Infant Feeding Guidelines. The associations between IFI score and maternal characteristics, and children's overweight/obesity/central adiposity, were in the expected directions and confirm the IFI's convergent construct validity.
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