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  • Title: Effect of Brief Counseling by Allied Health Professionals on Step Count of People With Peripheral Artery Disease: A Randomized Clinical Trial.
    Author: Golledge J, Yip L, Venn A, Leicht AS, Jenkins JS, Fiatarone Singh MA, Reid CM, Ademi Z, Parmenter BJ, Moxon JV, Burton NW, BIP Investigators.
    Journal: JAMA Cardiol; 2023 Apr 01; 8(4):394-399. PubMed ID: 36753250.
    Abstract:
    IMPORTANCE: It is unclear how to effectively promote walking in people with peripheral artery disease (PAD). OBJECTIVE: To test whether brief counseling delivered by allied health professionals increases step count in participants with PAD. DESIGN, SETTING, AND PARTICIPANTS: In this randomized clinical trial, participants with symptomatic PAD were recruited from sites in Australia and randomly allocated 1:1 to the counseling intervention or an attention control. Data were collected from January 2015 to July 2021, and data were analyzed from March to November 2022. INTERVENTIONS: Two 1-hour face-to-face and two 15-minute telephone counseling sessions designed to increase walking. MAIN OUTCOMES AND MEASURES: The primary outcome was the between-group difference in change in daily step count estimated by accelerometer recordings over 7 days at baseline and 4 months, using imputation for missing values. Other outcomes at 4, 12, and 24 months included step count, 6-minute walk distance, and disease-specific and generic measures of health-related quality of life. Risk of major adverse limb events was assessed over 24 months. RESULTS: Of 200 included participants, 144 (72.0%) were male, and the mean (SD) age was 69.2 (9.3) years. The planned sample of 200 participants was allocated to the counseling intervention group (n = 102) or attention control group (n = 98). Overall, 198 (99.0%), 175 (87.5%), 160 (80.0%) and 143 (71.5%) had step count assessed at entry and 4, 12, and 24 months, respectively. There was no significant between-group difference in the primary outcome of change in daily step count over 4 months (mean steps, 415; 95% CI, -62 to 893; P = .07). Participants in the counseling group had significantly greater improvement in the secondary outcome of disease-specific Intermittent Claudication Questionnaire score at 4 months (3.2 points; 95% CI, 0.1-6.4; P = .04) and 12 months (4.3 points; 95% CI, 0.5-8.1; P = .03) but not at 24 months (1.2 points; 95% CI, -3.1 to 5.6; P = .57). Findings were similar for mean PAD Quality of Life Questionnaire component assessing symptoms and limitations in physical functioning (4 months: 1.5 points; 95% CI, 0.3-2.8; P = .02; 12 months: 1.8 points; 95% CI, 0.3-3.3; P = .02; 24 months: 1.3 points; 95% CI. -0.5 to 3.1; P = .16). There was no significant effect of the intervention on change in mean 6-minute walking distance (4 months: 9.3 m; 95% CI, -3.7 to 22.3; P = .16; 12 months: 13.8 m; 95% CI, -4.2 to 31.7; P = .13; 24 months: 1.2 m; 95% CI, -20.0 to 22.5; P = .91). The counseling intervention did not affect the rate of major adverse limb events over 24 months (12 [6.0%] in the intervention group vs 11 [5.5%] in the control group; P > .99). CONCLUSIONS AND RELEVANCE: This randomized clinical trial found no significant effect of brief counseling on step count in people with PAD. Alternate interventions are needed to enable walking. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry Identifier: ACTRN12614000592640.
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