Published online before print September 20, 2007, doi: 10.1161/STROKEAHA.107.490078
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(Stroke. 2007;38:2972.)
© 2007 American Heart Association, Inc.
Original Contributions |
A Randomized, Controlled Trial to Teach Middle School Children to Recognize Stroke and Call 911
The Kids Identifying and Defeating Stroke Project
From the Stroke Program (L.B.M., K.E.M., D.L.B., L.D.L.), University of Michigan Medical School, and the Department of Epidemiology (L.B.M., L.D.L.), University of Michigan School of Public Health, Ann Arbor, Mich; the Stroke Program (L.B.M., N.R.G., N.E., J.K.P., J.C.G.), University of Texas at Houston Medical School, and the Department of Biometry (A.P.K., L.A.M.), University of Texas at Houston School of Public Health, Houston, Tex; and the School of Health Promotion and Human Performance (K.M.C.), Eastern Michigan University, Ypsilanti, Mich.
Correspondence to Lewis B. Morgenstern, MD, Stroke Program, University of Michigan Health System, 1500 E Medical Center Dr, TC 1920/0316, Ann Arbor, MI 48109-0316. E-mail LMorgens{at}umich.edu
Background and Purpose— Underutilization of acute stroke therapy is driven by delay to hospital arrival. We present the primary results of a pilot, randomized, controlled trial to encourage calling 911 for witnessed stroke among middle school children and their parents.
Methods— This project occurred in Corpus Christi, an urban Texas community of 325 000. Three intervention and 3 control schools were randomly selected. The intervention contained 12 hours of classroom instruction divided among sixth, seventh, and eighth grades. Parents were educated indirectly through homework assignments. Two-sample t tests were used to compare pretest and posttest responses.
Results— Domain 1 test questions involved stroke pathophysiology. Intervention students improved from 29% to 34% correct; control students changed from 28% to 25%. Domain 2 test questions involved stroke symptom knowledge. Intervention school students changed from 28% correct to 43%; control school students answered 25% correctly on the pretest and 29% on the posttest. Domain 3 test questions involved what to do for witnessed stroke. Intervention school students answered 36% of questions correctly on the pretest and 54% correctly on the posttest, whereas control students changed from 32% correct to 34%. A comparison of change in the mean proportion correct over time between intervention and control students was P<0.001 for each of the 3 individual domains. A poor parental response rate impaired the ability to assess parental improvement.
Conclusions— A scientific, theory-based, educational intervention can potentially improve intent to call 911 for stroke among middle school children. A different mechanism is needed to effectively diffuse the curriculum to parents.
Key Words: behavior • community • education • school • stroke, acute
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