title: Classifying subgroups of patients with symptoms of acute coronary syndromes: A cluster analysis.
abstract: The purpose of the study was to identify subgroups of patients presenting with acute coronary syndromes based on symptom clusters. Two hundred fifty-six patients completed a symptom assessment in their hospital rooms. Latent class cluster analysis and analysis of variance were used to classify subgroups of patients according to selected clinical characteristics. Four subgroups were identified and labeled as Heavy Symptom Burden, Chest Pain Only, Sweating and Weak, and Short of Breath and Weak (model fit χ(2) [130,891, n = 256] = 867.5, p = 1.00). The largest group of patients experienced classic symptoms of chest pain and shortness of breath but not sweating. Younger patients were more likely to cluster in the Heavy Symptom Burden group (F = 5.08, p = .002). Interpretation of the clinical significance of these groupings requires further study.
authors.affiliation: Betty Irene Moore School of Nursing, University of California Davis, Sacramento, CA 95817, USA.
authors.forename: Holli A
authors.initials: HA
authors.lastname: DeVon
authors.forename: Catherine J
authors.initials: CJ
authors.lastname: Ryan
authors.forename: Sally H
authors.initials: SH
authors.lastname: Rankin
authors.forename: Bruce A
authors.initials: BA
authors.lastname: Cooper
mesh_terms: D054058:Acute Coronary Syndrome / Q000145:classification* / Q000150:complications* / Q000523:psychology; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001294:Attitude to Health; D002637:Chest Pain / Q000453:epidemiology / Q000209:etiology; D016009:Chi-Square Distribution; D016000:Cluster Analysis; D004417:Dyspnea / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D016013:Likelihood Functions; D008297:Male; D008875:Middle Aged; D015146:Midwestern United States / Q000453:epidemiology; D015233:Models, Statistical; D018908:Muscle Weakness / Q000453:epidemiology / Q000209:etiology; D009325:Nausea / Q000453:epidemiology / Q000209:etiology; D015399:Nursing Research; D013546:Sweating / Q000502:physiology