Format

Send to

Choose Destination
Neuroepidemiology. 1994;13(6):268-74.

Observational data bases in neurological disorders: selection bias and generalization of results.

Author information

1
National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Md. 20892.

Abstract

Observational data bases in the neurological disorders may be an important source of information on etiology and natural history. The ability to make valid generalizations of results from a data base to the general population of patients with a particular disorder is not, however, guaranteed. The design or analysis of the study may result in selection biases that make inferences untenable. Examples are presented which demonstrate the potential for bias limiting the validity of inferences beyond the sample observed.

PMID:
7800104
DOI:
10.1159/000110390
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for S. Karger AG, Basel, Switzerland
Loading ...
Support Center