Quantitative neurologic assessment of ataxia-telangiectasia

Thomas Owen Crawford, A. S. Mandir, Maureen Lefton-Greif, S. N. Goodman, B. K. Goodman, H. Sengul, Howard M Lederman

Research output: Contribution to journalArticle

Abstract

Background: Ataxia telangiectasia (A-T) is a rare disorder with many distinctive neurologic features. Although there is substantial individual variation in the rate of progression of these features, their relationship to one another or to age has not been characterized. Methods: We formulated and tested multiple elements that assess different neurologic functions known to be affected by A-T. The overall index was applied to 52 patients with A-T, 2 to 29 years of age. Results: Seven elements items proved to be informative, and three elements were added based on face validity. In a linear regression model of individuals under 19 years of age, controlled for correlation within sibships, age accounted for 87% of the variation in the A-T Index. Conclusion: Despite substantial individual variability of the phenotypic elements of A-T, scores on this multidimensional index have a very high correlation with age, indicating that there is a characteristic rate of progression of the disease, although functional domains in the brain are differentially affected. The pattern of scores suggests that a severe and a mild form of A-T may be distinguished by this quantitative measure. With further development this index may become useful as an outcome measure for treatment studies and prognosis.

Original languageEnglish (US)
Pages (from-to)1505-1509
Number of pages5
JournalNeurology
Volume54
Issue number7
StatePublished - Apr 11 2000

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Ataxia Telangiectasia
Nervous System
Linear Models
Reproducibility of Results
Disease Progression
Outcome Assessment (Health Care)
Brain

Keywords

  • Ataxia
  • Clinical trial
  • Disability rating scale
  • Evaluation study
  • Factor analysis
  • Natural history
  • Telangiectasia

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Crawford, T. O., Mandir, A. S., Lefton-Greif, M., Goodman, S. N., Goodman, B. K., Sengul, H., & Lederman, H. M. (2000). Quantitative neurologic assessment of ataxia-telangiectasia. Neurology, 54(7), 1505-1509.

Quantitative neurologic assessment of ataxia-telangiectasia. / Crawford, Thomas Owen; Mandir, A. S.; Lefton-Greif, Maureen; Goodman, S. N.; Goodman, B. K.; Sengul, H.; Lederman, Howard M.

In: Neurology, Vol. 54, No. 7, 11.04.2000, p. 1505-1509.

Research output: Contribution to journalArticle

Crawford, TO, Mandir, AS, Lefton-Greif, M, Goodman, SN, Goodman, BK, Sengul, H & Lederman, HM 2000, 'Quantitative neurologic assessment of ataxia-telangiectasia', Neurology, vol. 54, no. 7, pp. 1505-1509.
Crawford TO, Mandir AS, Lefton-Greif M, Goodman SN, Goodman BK, Sengul H et al. Quantitative neurologic assessment of ataxia-telangiectasia. Neurology. 2000 Apr 11;54(7):1505-1509.
Crawford, Thomas Owen ; Mandir, A. S. ; Lefton-Greif, Maureen ; Goodman, S. N. ; Goodman, B. K. ; Sengul, H. ; Lederman, Howard M. / Quantitative neurologic assessment of ataxia-telangiectasia. In: Neurology. 2000 ; Vol. 54, No. 7. pp. 1505-1509.
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