The alarming increase in the number of US children who are overweight [body mass index (BMI)-for-age > 95th percentile] or at risk of overweight (BMI-for-age between the 85th and 95th percentiles) has been emphasized in several recent reports.
A comparison of data from several national surveys shows that the percentage of 6–11-y-old children with a BMI above the 85th percentile (with use of the 1963 National Health Examination Survey as a reference) increased from 15% in 1963 to 22% in 1994.
The reasons for this increasing prevalence are not completely clear, but it is believed that a sedentary lifestyle and unhealthy dietary habits (eg, excessive consumption of high-fat snacks and soft drinks) may play a role.
普遍過重比率的全國性資料,限定於美國印度裔的社區.資料是從特定的種族和從成年... kg/m2) 27.8的男性和 27.3的女性]男性為34%而女性為40%,與全國平均標準男性24%和女性25%...
Nationwide data on obesity prevalence in American Indian communities are limited. Data from specific tribes and from surveys of adult American Indian groups reported by the US Indian Health Service show prevalences of overweight [BMI (in kg/m2) 27.8 for men and 27.3 for women] of 34% for men and 40% for women, compared with national averages of 24.1% for men and 25.0% for women with use of the same criteria.
雖然美國印度裔兒童普遍的數據比大人有限,在1990年檢查了9464個5~18歲... 85個百分比有39%[第2 國家健康和營養檢查調查]
Although prevalence data for American Indian children are even more limited than for adults, a 1990 survey that examined 9464 American Indian children aged 5–18 y found that 39% had a BMI above the 85th percentile [based on the second National Health and Nutrition Examination Survey (NHANES II).
Similar frequencies were found in a large survey of schoolchildren in the Aberdeen area of the Indian Health Service.Other smaller surveys in specific tribes also reported prevalences in children of BMI above the 85th percentile of 25–46%.None of these surveys included specific measurements of body fat.
The Pathways study was a randomized trial designed to evaluate a program for the primary prevention of obesity, targeting elementary school children in grades 3–5.The intervention included components related to physical activity, food service, classroom curriculum, and family involvement.
The aim of the Pathways intervention was to produce a difference of 3% in mean percentage body fat between the intervention and control schools by the end of the 5th grade.
Details of the intervention program and results from the feasibility studies that preceded the full-scale intervention are reported elsewhere.
The present report describes the results of baseline body-composition measurements in the 1705 children enrolled in the Pathways study and discusses these data in the context of national anthropometric surveys conducted in comparable age groups.