Abstract:
OBJECTIVE:To assess the impact of the complex survey design used in the 2007 Australian National Children's Nutrition and Physical Activity Survey (ANCNPAS07) on prevalence estimates for intakes of groups of foods in the population of children. DESIGN:The impacts on prevalence estimates were determined by calculating design effects for values for food group consumption. The implications of ignoring elements of the sample design including stratification, clustering and weighting are discussed. SETTING:The ANCNPAS07 used a complex sample design involving stratification, a high degree of clustering and estimation weights. SUBJECTS:Australian children aged 2-16 years. RESULTS:Design effects ranging from <1 to 5 were found for the values of mean consumption and proportion of the population consuming the food groups. When survey weights were ignored, prevalence estimates were also biased. CONCLUSIONS:Ignoring the complex survey design used in the ANCNPAS07 could result in underestimating the width of confidence intervals, higher mean square errors and biased estimators. The magnitude of these effects depends on both the parameter under consideration and the chosen estimator.
journal_name
Public Health Nutrjournal_title
Public health nutritionauthors
Burden S,Probst Y,Steel D,Tapsell Ldoi
10.1017/S1368980011003326subject
Has Abstractpub_date
2012-08-01 00:00:00pages
1362-72issue
8eissn
1368-9800issn
1475-2727pii
S1368980011003326journal_volume
15pub_type
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pub_type: 杂志文章,meta分析,评审
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更新日期:2009-05-01 00:00:00
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doi:10.1079/PHN2002402
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pub_type: 杂志文章,评审
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journal_title:Public health nutrition
pub_type: 杂志文章
doi:10.1079/PHN2001205
更新日期:2002-02-01 00:00:00
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journal_title:Public health nutrition
pub_type: 杂志文章
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更新日期:2001-06-01 00:00:00
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更新日期:2001-12-01 00:00:00
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更新日期:2012-06-01 00:00:00
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更新日期:2006-09-01 00:00:00