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Abstract
Little is known about nationwide patterns of hospitalization after transient ischemic attack (TIA).In a nationally representative sample of Emergency Department (ED) visits included in the National Hospital Ambulatory Medical Care Survey (NHAMCS) from 1997 through 2008, we estimated rates of hospitalization among patients with a primary ED diagnosis of TIA (International Classification of Diseases, 9th Revision (ICD-9), code 435). We used multiple logistic regression analysis to examine the association between hospitalization and demographic characteristics, geographic region, year of the visit, time of the visit, and markers of stroke risk.On the basis of 782 cases of TIA sampled by the NHAMCS, 57% (95% confidence interval [CI], 52%-61%) of patients with TIA nationwide were hospitalized. A higher proportion of patients was hospitalized in 2003 to 2008 (62%; 95% CI, 56%-68%) than in 1997 to 2002 (52%; 95% CI, 46%-58%; P = .02). Compared with the US Northeast, patients were less likely to be hospitalized in the Midwest (odds ratio [OR], 0.5; 95% CI, .3-.9), the South (OR, 0.3; 95% CI, .2-.5), or the West (OR, 0.2; 95% CI, .1-.4). Compared with white patients, hospitalization was more likely among patients who were black (OR, 2.4; 95% CI, 1.3-4.5), Hispanic (OR, 3.8; 95% CI, 1.4-10.2), or of other races (OR, 3.5; 95% CI, 1.3-9.6). Patients with Medicaid were admitted less often than those with private insurance (OR, 0.3; 95% CI, .2-.8).Nationwide patterns of hospitalization after TIA show significant regional and demographic variation. These results may provide a useful roadmap for efforts to improve systems of care for TIA across the country.
View details for DOI 10.1016/j.jstrokecerebrovasdis.2012.09.016
View details for Web of Science ID 000325874200022
View details for PubMedID 23149150