Review of Other Population-Based Studies
To identify population-based studies that previously reported the distribution
of stroke patients according to NIHSS scores, we searched
Medline/PubMed from 1989 to April 2012 with the following keywords:
stroke, cerebrovascular, isch(a)emic, h(a)emorrhagic, population-
based, epidemiology, registry, register, incidence study, stroke
severity, and NIHSS. Only studies from reliable population-based
registries that complied with the criteria for incidence studies were
eligible. Authors were contacted to obtain additional data about the
distribution of NIHSS scores.