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A Population-Based Study of School Scoliosis Screening
Barbara P. Yawn, MD, MSc;
Roy A. Yawn, MD;
David Hodge, MS;
Margary Kurland, RN;
William J. Shaughnessy, MD, MS;
Duane Ilstrup, MS;
Steven J. Jacobsen, MD, PhD
JAMA. 1999;282:1427-1432.
Context Although school-based screening programs for adolescent idiopathic scoliosis are mandated in 26 states in the United States, few program outcomes data exist regarding the effectiveness of such programs.
Objective To determine the effectiveness of a community-based school scoliosis screening program.
Design, Setting, and Participants Retrospective cohort study of children who attended kindergarten or first grade at public or private schools in Rochester, Minn, during 1979-1982. Children were followed up until age 19 years or until they left the school district.
Main Outcome Measures Number of children diagnosed and treated for scoliosis, based on results from scoliosis screenings performed annually in grades 5 through 9, linked to community medical records data; performance characteristics of the screening program.
Results Of the 2242 children screened, 92 (4.1%) were referred for further evaluation. Of these, 68 (74%) had documented medical or chiropractic evaluation of scoliosis. School screening identified 5 of the 9 children treated for scoliosis but resulted in referrals for another 87 children who were not treated. The cumulative incidence of diagnosed scoliosis in this population was 1.8% (95% confidence interval [CI], 1.2%-2.3%) for curves of more than 10°, 1.0% (95% CI, 0.6%-1.5%) for curves of at least 20°, and 0.4% (95% CI, 0.1%-0.6%) for curves of 40° or more; 0.4% (0.5% of girls and 0.3% of boys) were treated for scoliosis. The positive predictive value of the school screening program for the identification of treated scoliosis was 0.05 (95% CI, 0.048-0.052), with 448 children needed to screen to identify 1 child who subsequently received treatment. The percent positive agreement across consecutive years of screening varied from 7% to 30%.
Conclusion In this population, school scoliosis screening identified some children who went on to receive treatment but referred many more who did not. These data should be considered in making decisions regarding school scoliosis screening.
Author Affiliations: Department of Research, Olmsted Medical Center (Drs B. Yawn and R. Yawn and Ms Kurland), Sections of Biostatistics (Messrs Hodge and Ilstrup) and Clinical Epidemiology (Dr Jacobsen), and Department of Orthopedics (Dr Shaughnessy), Mayo Clinic, Rochester, Minn.
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