Effect of concurrent chest pain assessment on retrospective reports by cardiac patients

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Abstract
The purpose of this study was to examine the effect of a concurrent record of chest pain episodes on later completeness and accuracy of verbal recall. Patients included 23 men and eight women, ages 43 to 76 years from a private cardiology practice who were randomized into experimental (n = 16) and control (n = 15) groups. Following an initial interview, experimental patients were instructed in using a Chest Discomfort Diary in the home setting to record eight categories of information about each episode of chest pain experienced during the next 7 to 10 days. At the end of that time, both groups were interviewed about a specific typical episode of chest pain that had occurred; patients who did not have chest pain during the study period described an episode experienced prior to the initial interview. Experimental patients recalled their chest pain more completely than controls (P = 0.007), whether it had occurred during or prior to the study period. Experimental patients who had pain (n = 11), and thus actually used the diary, accurately recalled the duration, intensity, description, and treatment of the typical episode but were often inaccurate regarding their mood and the total number of episodes they had experienced. The findings suggest that a concurrent diary offers one method of teaching patients how to report their chest pain symptoms and may improve the completeness and accuracy of those reports.

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