Development and Validation of Correction Formulas for Self-Reported Height and Weight to Estimate BMI in Adolescents. Results from the KiGGS Study
| Autor: | Angelika Schaffrath Rosario, Ute Ellert, Maximilian Kollock, Anna-Kristin Brettschneider, Susanna Wiegand |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Male
Pediatrics medicine.medical_specialty Health (social science) Adolescent Prevalence lcsh:TX341-641 Overweight 600 Technik Medizin angewandte Wissenschaften::610 Medizin und Gesundheit Adolescents Body Mass Index Bias Physiology (medical) Statistics medicine Humans Obesity Child lcsh:RC620-627 Baseline study business.industry Body Weight Reproducibility of Results Individual level medicine.disease Health Surveys Predictive value Body Height Regression lcsh:Nutritional diseases. Deficiency diseases Self-reported height and weight Original Article Female Self Report Correction formula KiGGS study medicine.symptom Underweight Epidemiologic Methods business lcsh:Nutrition. Foods and food supply |
| Zdroj: | Obesity Facts, Vol 8, Iss 1, Pp 30-42 (2015) Obesity Facts |
| ISSN: | 1662-4033 1662-4025 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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