To assess the accuracy and reliability of self reported weight and height and identify the factors associated with reporting accuracy. Sensitivity and specificity of obesity based on self reported bmi were calculated us ing measured bmi as a comparison standard.
Reliability And Validity Of A General Nutrition Knowledge
The reliability and validity of self reported weight and height. Self reported height was found to be an average of 088 cm greater than measured height and self reported weight was 233 kg less than measured weight. The validity of self reported values was analyzed through the calculation of sensitivity and specificity of the nutritional status classifica tion based on self reported weight and height values. Previous studies have assessed the accuracy of self reported height weight and corresponding bmi in adults 5 14. Kuskowska wolk a karlsson p stolt m rossner s. To assess the reliability and validity of self reported height and weight and variables calculated from these values in a diverse sample of adolescents. Design analysis of self reported and measured weight and height from participants in the sister study 20032009 a nationwide cohort of 50 884 women aged 3574 years in the usa with a sister with breast.
The reliability and validity of measures of self reported weight and height are analyzed by using data on 3373 people 1461 yr of age. Among males concurrent validity for self reported height icc 084 weight icc 095 and bmi icc 085 are considered substantial. Self reported height weight and bmi calculated from these values were highly reliable but were discrepant from measured height weight and bmis calculated from measured values. Bolton smith c woodward m tunstall pedoe h morrison c. Similarly among females concurrent validity for self reported height icc 082 weight icc 094 and bmi icc 083 are considered substantial. Results indicate that these measures are remarkably accurate indicators of actual weight and height.
One study compared self reported and measured height and weight of a large population in canada. Several studies have examined the validity of self reported height and weight among adolescents and have found that adolescents self reported weight tends to be lower than their measured weight 5 6 7 8 9 10. Bmis based on self reported height and weight values therefore underestimate the prevalence of overweight in adolescent populations. For height however results are mixed. The validity of self reported bmi may be assessed by its sensitivity specificity and predictive values in classifying the respondents into overweight and obese using bmi derived from direct measurements of weight and height as reference. A convenience sample of students n 4619 in grades 9 through 12 reported their height and weight on two questionnaires administered approximately 2 weeks apart.
The predictive validity of body mass index based on self reported weight and height. Accuracy of the estimated prevalence of obesity from self reported height and weight in an adult scottish population.
Gallery of The Reliability And Validity Of Self Reported Weight And Height
