Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study
Objective: The use of reported instead of measured height and weight induces a bias in prevalence rates for overweight and obesity. Therefore, correction formulas are necessary. Methods: Self-reported and measured height and weight were available from the German Health Interview and Examination Surv...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Karger Publishers
2015-01-01
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| Series: | Obesity Facts |
| Subjects: | |
| Online Access: | http://www.karger.com/Article/FullText/375109 |
| _version_ | 1819016115414630400 |
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| author | Anna-Kristin Brettschneider Angelika Schaffrath Rosario Susanna Wiegand Maximilian Kollock Ute Ellert |
| author_facet | Anna-Kristin Brettschneider Angelika Schaffrath Rosario Susanna Wiegand Maximilian Kollock Ute Ellert |
| author_sort | Anna-Kristin Brettschneider |
| collection | DOAJ |
| description | Objective: The use of reported instead of measured height and weight induces a bias in prevalence rates for overweight and obesity. Therefore, correction formulas are necessary. Methods: Self-reported and measured height and weight were available from the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) baseline study (2003-2006) from 3,468 adolescents aged 11-17 years. With regression analyses, correction formulas for height and weight were developed. Cross-validation was conducted in order to validate and compare the formulas. Corrected BMI was calculated, and corrected prevalence rates were estimated. Sensitivity, specificity, and predictive values for overweight and obesity were calculated. Results: Through the correction procedure, the mean differences between reported and measured height and weight become remarkably smaller and thus the estimated prevalence rates more accurate. The corrected proportions for overweight and obesity are less under-reported, while the corrected proportions for underweight are less over-reported. Sensitivity for overweight and obesity increased after correction. Specificity remained high. Conclusion: The validation process showed that the correction formulas are an appropriate tool to correct self-reports on an individual level in order to estimate corrected prevalence rates of overweight and obesity in adolescents for studies which have collected self-reports only. |
| first_indexed | 2024-12-21T02:42:30Z |
| format | Article |
| id | doaj.art-ccd7d671f6804b0eac0c02f5ce05fd28 |
| institution | Directory Open Access Journal |
| issn | 1662-4025 1662-4033 |
| language | English |
| last_indexed | 2024-12-21T02:42:30Z |
| publishDate | 2015-01-01 |
| publisher | Karger Publishers |
| record_format | Article |
| series | Obesity Facts |
| spelling | doaj.art-ccd7d671f6804b0eac0c02f5ce05fd282022-12-21T19:18:39ZengKarger PublishersObesity Facts1662-40251662-40332015-01-0181304210.1159/000375109375109Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS StudyAnna-Kristin BrettschneiderAngelika Schaffrath RosarioSusanna WiegandMaximilian KollockUte EllertObjective: The use of reported instead of measured height and weight induces a bias in prevalence rates for overweight and obesity. Therefore, correction formulas are necessary. Methods: Self-reported and measured height and weight were available from the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) baseline study (2003-2006) from 3,468 adolescents aged 11-17 years. With regression analyses, correction formulas for height and weight were developed. Cross-validation was conducted in order to validate and compare the formulas. Corrected BMI was calculated, and corrected prevalence rates were estimated. Sensitivity, specificity, and predictive values for overweight and obesity were calculated. Results: Through the correction procedure, the mean differences between reported and measured height and weight become remarkably smaller and thus the estimated prevalence rates more accurate. The corrected proportions for overweight and obesity are less under-reported, while the corrected proportions for underweight are less over-reported. Sensitivity for overweight and obesity increased after correction. Specificity remained high. Conclusion: The validation process showed that the correction formulas are an appropriate tool to correct self-reports on an individual level in order to estimate corrected prevalence rates of overweight and obesity in adolescents for studies which have collected self-reports only.http://www.karger.com/Article/FullText/375109Correction formulaSelf-reported height and weightObesityKiGGS studyAdolescentsOverweight |
| spellingShingle | Anna-Kristin Brettschneider Angelika Schaffrath Rosario Susanna Wiegand Maximilian Kollock Ute Ellert Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study Obesity Facts Correction formula Self-reported height and weight Obesity KiGGS study Adolescents Overweight |
| title | Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study |
| title_full | Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study |
| title_fullStr | Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study |
| title_full_unstemmed | Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study |
| title_short | Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study |
| title_sort | development and validation of correction formulas for self reported height and weight to estimate bmi in adolescents results from the kiggs study |
| topic | Correction formula Self-reported height and weight Obesity KiGGS study Adolescents Overweight |
| url | http://www.karger.com/Article/FullText/375109 |
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