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Can secondary school students' self-reported measures of height and weight be trusted? An effect size approach
dc.creator | Tsigilis, N. | en |
dc.date.accessioned | 2015-11-23T10:51:27Z | |
dc.date.available | 2015-11-23T10:51:27Z | |
dc.date.issued | 2006 | |
dc.identifier | 10.1093/eurpub/ckl050 | |
dc.identifier.issn | 1101-1262 | |
dc.identifier.uri | http://hdl.handle.net/11615/33903 | |
dc.description.abstract | Background: Self-reported measures of height and weight are a cost-effective alternative to direct measures in large-scale studies. This study was designed to examine the accuracy of adolescent students' self-reported height and weight taking into consideration the magnitude of the differences. Methods: Self-reported height and weight were taken from 300 secondary public schools students. Participants' actual height and weight were subsequently verified. Body mass index (BMI; kg/m(2)) was calculated separately from reported and from actual measures. Adolescents' whose measured BMI was above the 85th percentile were characterized as 'at risk for overweight/obese'. Results: There was no gender effect on the discrepancy between reported and actual measures. Overall adolescents significantly underestimated their weight and BMI. Although correlation coefficients were high, eta-square (eta(2)) values indicate large bias for weight (0.36) and BMI (0.31). 'At risk for overweight/obese' individuals underestimated their weight and BMI to a greater extent than their 'normal weight' counterparts. Conclusions: The magnitude of the discrepancies call into question the accuracy of self-reported weight and consequently the estimated BMI. Correlation coefficients did not provide any valuable information about the discrepancy between the self-reported and actual measures. A better understanding of the validity of self-reported height and weight could be reached if interpretation of the results is based on both statistical significance and magnitude of the differences. | en |
dc.source.uri | <Go to ISI>://WOS:000241092500017 | |
dc.subject | adolescents | en |
dc.subject | body mass index | en |
dc.subject | Greece | en |
dc.subject | reproducibility of results | en |
dc.subject | BODY-MASS INDEX | en |
dc.subject | ADOLESCENTS | en |
dc.subject | RELIABILITY | en |
dc.subject | ACCURACY | en |
dc.subject | VALIDITY | en |
dc.subject | STATURE | en |
dc.subject | OBESITY | en |
dc.subject | CHILDREN | en |
dc.subject | BMI | en |
dc.subject | Public, Environmental & Occupational Health | en |
dc.title | Can secondary school students' self-reported measures of height and weight be trusted? An effect size approach | en |
dc.type | journalArticle | en |
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