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Imputing Longitudin...
Imputing Longitudinal Growth Data in International Pediatric Studies : Does CDC Reference Suffice?
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- Li, Zhiguo (author)
- IBM Research
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- Toppari, Jorma (author)
- Turku University Hospital
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- Lundgren, Markus (author)
- Lund University,Lunds universitet,Pediatrisk endokrinologi,Forskargrupper vid Lunds universitet,Paediatric Endocrinology,Lund University Research Groups,Skåne University Hospital
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- Frohnert, Brigitte I. (author)
- University of Colorado
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- Achenbach, Peter (author)
- Helmholtz Zentrum München
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- Veijola, Riitta (author)
- University of Oulu
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- Anand, Vibha (author)
- IBM
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(creator_code:org_t)
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- 2021
- 2021
- English 9 s.
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In: AMIA ... Annual Symposium proceedings. AMIA Symposium. - 1942-597X. ; 2021, s. 754-762
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Abstract
Subject headings
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- This study investigates a missing value imputation approach for longitudinal growth data in pediatric studies from multiple countries. We analyzed a combined cohort from five natural history studies of type 1 diabetes (T1D) in the US and EU with longitudinal growth measurements for 23,201 subjects. We developed a multiple imputation methodology using LMS parameters of CDC reference data. We measured imputation errors on both combined and individual cohorts using mean absolute percentage error (MAPE) and normalized root-mean-square error (NRMSE). Our results show low imputation errors using CDC reference. Overall height imputation errors were lower than for weight. The largest MAPE for weight and height among all age groups was 4.8% and 1.7%, respectively. When comparing performance between CDC reference and country-specific growth charts, we found no significant differences for height (CDC vs. German: p =0.993, CDC vs. Swedish: p=0.368) and for weight (CDC vs. Swedish: p=0.513) for all ages.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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