Incidence of reading disability in a population-based birth cohort, 1976-1982, Rochester, Minn

Slavica K Katusic, R. C. Colligan, W. J. Barbaresi, Daniel J Schaid, S. J. Jacobsen

Research output: Contribution to journalArticle

185 Citations (Scopus)

Abstract

Objective: To report the incidence of reading disability among school-aged children. Subjects and Methods: In this population-based, retrospective birth cohort study, subjects included all 5718 children born between 1976 and 1982 who remained in Rochester, Minn, after the age of 5 years. Based on records from all public and nonpublic schools, medical facilities, and private tutorial services and on results of all individually administered IQ and achievement tests, extensive medical, educational, and socioeconomic information were abstracted. Reading disability was established with use of research criteria based on 4 formulas (2 regression-based discrepancy, 1 non-regression-based discrepancy, and 1 low achievement). Results: Cumulative incidence rates of reading disability varied from 5.3% to 11.8% depending on the formula used. Boys were 2 to 3 times more likely to be affected than girls, regardless of the identification methods applied. Conclusions: In this population-based birth cohort, reading disability was common among school-aged children and significantly more frequent among boys than girls, regardless of definition.

Original languageEnglish (US)
Pages (from-to)1081-1092
Number of pages12
JournalMayo Clinic Proceedings
Volume76
Issue number11
StatePublished - 2001

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Reading
Parturition
Incidence
Population
Medical Schools
Cohort Studies
Research

Keywords

  • CI = confidence interval
  • DS = discrepancy [nonregression method]
  • IEP = individual education program
  • Isd = independent school district
  • LA = low-achievement [method]
  • LD = learning disability
  • RCDIM = reading center/dyslexia institute of minnesota
  • RD = reading disability
  • RFM = regression formula-Minnesota
  • RFSh = regression formula-Shaywitz
  • RR = relative risk

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Incidence of reading disability in a population-based birth cohort, 1976-1982, Rochester, Minn. / Katusic, Slavica K; Colligan, R. C.; Barbaresi, W. J.; Schaid, Daniel J; Jacobsen, S. J.

In: Mayo Clinic Proceedings, Vol. 76, No. 11, 2001, p. 1081-1092.

Research output: Contribution to journalArticle

Katusic, Slavica K ; Colligan, R. C. ; Barbaresi, W. J. ; Schaid, Daniel J ; Jacobsen, S. J. / Incidence of reading disability in a population-based birth cohort, 1976-1982, Rochester, Minn. In: Mayo Clinic Proceedings. 2001 ; Vol. 76, No. 11. pp. 1081-1092.
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