Chest
Clinical Investigations: AsthmaCompliance With Peak Expiratory Flow Monitoring in Home Management of Asthma
Section snippets
METHODS
Twenty-six patients with moderate to severe asthma from three different asthma clinics were enrolled. They were a subgroup of subjects who participated in a randomized, controlled trial of 1 year's duration assessing the value of an educational program based either on PEF or asthma symptom monitoring. Twenty-three subjects had dropped out of the study for various reasons (nonattenders, or group NA). The remaining 26 subjects were randomly assigned to take part in an asthma education program
RESULTS
As Table 1 shows, the 26 subjects who were given the electronic peak flowmeter (educated patients, or group EP) were similar to the control patients who received the usual care treatment (group C) and to those subjects who did not complete the study (group NA) with regard to age, sex, asthma duration, atopy, and the daily dose of inhaled corticosteroids needed to maintain good asthma control.
Throughout the study period, the average compliance decreased from 63% of measurements at 1 month, to
DISCUSSION
This study shows that short-term compliance with PEF monitoring is fairly good, although one third of the subjects did not comply right from the start despite having been given specific information on the usefulness of the portable device in the management of their asthma. However, long-term compliance with such monitoring is poor, even among a group of patients who have moderate to severe asthma requiring daily use of inhaled corticosteroids and who are motivated to take part in an asthma
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Supported by a grant from Glaxo Wellcome Canada, Mississauga, Ontario, Canada.