Wealth index and risk of childhood overweight and obesity: evidence from four prospective cohorts in Peru and Vietnam
File(s)
Accepted version
Author(s)
Carrillo-Larco, RM
Jaime Miranda, J
Bernabe-Ortiz, A
Type
Journal Article
Abstract
Objectives
To estimate the incidence and risk of childhood overweight and obesity according to socioeconomic status in Peruvian and Vietnamese school-aged children.
Methods
Longitudinal data from the Young Lives study were analyzed. Exposure was wealth index in tertiles. Outcome was overweight and obesity. Cumulative incidence per 100 children-years, relative risks (RR), and 95 % confidence intervals (95 % CI) were calculated. A hierarchical approach, including child- and family-related variables, was followed to construct multivariable models.
Results
The cumulative incidence of overweight and obesity was 4.8 (95 % CI 4.1–5.5) and 1.7 (95 % CI 1.3–2.2) in the younger and older Peruvian cohort, respectively; and in Vietnam 1.5 (95 % CI 1.2–1.8) and 0.3 (95 % CI 0.2–0.5), respectively. The incidence of overweight and obesity was higher at the top wealth index tertile in all samples. In the older cohorts, comparing highest versus bottom wealth index tertile, RR of overweight and obesity was four to nine times higher: 4.25 in Peru (95 % CI 2.21–8.18) and 9.11 in Vietnam (95 % CI 1.07–77.42).
Conclusions
The results provide important information for childhood obesity prevention in countries moving ahead with economic, epidemiological and nutritional transitions.
To estimate the incidence and risk of childhood overweight and obesity according to socioeconomic status in Peruvian and Vietnamese school-aged children.
Methods
Longitudinal data from the Young Lives study were analyzed. Exposure was wealth index in tertiles. Outcome was overweight and obesity. Cumulative incidence per 100 children-years, relative risks (RR), and 95 % confidence intervals (95 % CI) were calculated. A hierarchical approach, including child- and family-related variables, was followed to construct multivariable models.
Results
The cumulative incidence of overweight and obesity was 4.8 (95 % CI 4.1–5.5) and 1.7 (95 % CI 1.3–2.2) in the younger and older Peruvian cohort, respectively; and in Vietnam 1.5 (95 % CI 1.2–1.8) and 0.3 (95 % CI 0.2–0.5), respectively. The incidence of overweight and obesity was higher at the top wealth index tertile in all samples. In the older cohorts, comparing highest versus bottom wealth index tertile, RR of overweight and obesity was four to nine times higher: 4.25 in Peru (95 % CI 2.21–8.18) and 9.11 in Vietnam (95 % CI 1.07–77.42).
Conclusions
The results provide important information for childhood obesity prevention in countries moving ahead with economic, epidemiological and nutritional transitions.
Date Issued
2015-11-24
Date Acceptance
2015-11-12
Citation
International Journal of Public Health, 2015, 61 (4), pp.475-485
ISSN
0303-8408
Publisher
Springer Verlag
Start Page
475
End Page
485
Journal / Book Title
International Journal of Public Health
Volume
61
Issue
4
Copyright Statement
© Swiss School of Public Health (SSPH+) 2015. The final publication is available at Springer via https://link.springer.com/article/10.1007%2Fs00038-015-0767-7
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000378730500010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Life Sciences & Biomedicine
Public, Environmental & Occupational Health
Peru
Vietnam
Developing countries
Pediatric obesity
Social class
Prospective studies
MIDDLE-INCOME COUNTRIES
BODY-MASS INDEX
SOCIOECONOMIC-STATUS
NUTRITION TRANSITION
CHILDREN
PREVALENCE
INTERVENTIONS
HYPERTENSION
ASSOCIATION
ADOLESCENTS
Publication Status
Published