Simple, Age-based Formula for Predicting Renal Length in Children
| Autor: | Jeffrey A. Stock, Daryl McLeod, Jonathan S. Brajtbord, Abdo Kabarriti, Henrietta Kotlus Rosenberg, Ardavan Akhavan |
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| Rok vydání: | 2011 |
| Předmět: |
Male
Pediatrics medicine.medical_specialty Multivariate statistics Adolescent Urology Renal length Kidney urologic and male genital diseases Simple (abstract algebra) medicine Urological Disorders Humans In patient Child Retrospective Studies business.industry Age Factors Infant Newborn Renal ultrasound Infant Retrospective cohort study Organ Size Nomogram Child Preschool Female business Mathematics Forecasting |
| Zdroj: | Urology. 78:405-410 |
| ISSN: | 0090-4295 |
| DOI: | 10.1016/j.urology.2011.01.008 |
| Popis: | To determine a simple, age based formula for predicting ideal renal length in children. Renal size is a valuable marker in the evaluation of children with urological disorders. Although many authors have described complex nomograms and multivariate formulas for determining renal size, we propose a simple and accurate formula.All renal ultrasound (US) studies performed over a 9-year period in patients18 years of age were retrospectively evaluated, excluding patients with a history of urinary tract disease or with abnormal renal US findings.Ultrasounds were performed in 778 children18 years who met inclusion criteria. Sixty-one percent of the patient population was ≥1 year of age at the time of the US. Forty-four percent of the children were male. In children 1 year of age or older, the formula was length (cm) = age (years) × 0.3 + 6, R(2) = .81. In infants younger than 1 year, renal length was poorly estimated by a simple age-based formula.Our proposed formula can be used to predict renal length in children older than 1 year. |
| Databáze: | OpenAIRE |
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