• David O Garcia, Betsy C Wertheim, JoAnn E Manson, Rowan T Chlebowski, Stella L Volpe, Barbara V Howard, Marcia L Stefanick, and Cynthia A Thomson.
• Canyon Ranch Center for Prevention and Health Promotion, Mel & Enid Zuckerman College of Public Health, Division of Health Promotion Sciences, University of Arizona, 3950S. Country Club, Suite 330, Tucson, AZ 85714, United States. Electronic address: davidogarcia@email.arizona.edu.
• Prev Med. 2015 Jan 1; 70: 333833-8.

BackgroundPositive associations between dog ownership and physical activity in older adults have been previously reported.PurposeThe objective of this study was to examine cross-sectional associations between dog ownership and physical activity measures in a well-characterized, diverse sample of postmenopausal women.MethodsAnalyses included 36,984 dog owners (mean age: 61.5years), and 115,645 non-dog owners (mean age: 63.9years) enrolled in a clinical trial or the observational study of the Women's Health Initiative between 1993 and 1998. Logistic regression models were used to test for associations between dog ownership and physical activity, adjusted for potential confounders.ResultsOwning a dog was associated with a higher likelihood of walking ≥150min/wk (Odds Ratio, 1.14; 95% Confidence Interval, 1.10-1.17) and a lower likelihood of being sedentary ≥8h/day (Odds Ratio, 0.86; 95% Confidence Interval, 0.83-0.89) as compared to not owning a dog. However, dog owners were less likely to meet ≥7.5MET-h/wk of total physical activity as compared to non-dog owners (Odds Ratio, 1.03; 95% Confidence Interval, 1.00-1.07).ConclusionsDog ownership is associated with increased physical activity in older women, particularly among women living alone. Health promotion efforts aimed at older adults should highlight the benefits of regular dog walking for both dog owners and non-dog owners.Copyright © 2014 Elsevier Inc. All rights reserved.

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