PT  - JOURNAL ARTICLE
AU  - Ane Arbillaga-Etxarri
AU  - Elena Gimeno-Santos
AU  - Anael Barberan-Garcia
AU  - Marta Benet
AU  - Eulàlia Borrell
AU  - Payam Dadvand
AU  - Maria Foraster
AU  - Alicia Marín
AU  - Mònica Monteagudo
AU  - Robert Rodriguez-Roisin
AU  - Pere Vall-Casas
AU  - Jordi Vilaró
AU  - Judith Garcia-Aymerich
ED  - ,
TI  - Socio-environmental correlates of physical activity in patients with chronic obstructive pulmonary disease (COPD)
AID  - 10.1136/thoraxjnl-2016-209209
DP  - 2017 Sep 01
TA  - Thorax
PG  - 796--802
VI  - 72
IP  - 9
4099  - http://thorax.bmj.com/content/72/9/796.short
4100  - http://thorax.bmj.com/content/72/9/796.full
SO  - Thorax2017 Sep 01; 72
AB  - Background Study of the causes of the reduced levels of physical activity in patients with COPD has been scarce and limited to biological factors.Aim To assess the relationship between novel socio-environmental factors, namely dog walking, grandparenting, neighbourhood deprivation, residential surrounding greenness and residential proximity to green or blue spaces, and amount and intensity of physical activity in COPD patients.Methods This cross-sectional study recruited 410 COPD patients from five Catalan municipalities. Dog walking and grandparenting were assessed by questionnaire. Neighbourhood deprivation was assessed using the census Urban Vulnerability Index, residential surrounding greenness by the satellite-derived Normalized Difference Vegetation Index, and residential proximity to green or blue spaces as living within 300 m of such a space. Physical activity was measured during 1 week by accelerometer to assess time spent on moderate-to-vigorous physical activity (MVPA) and vector magnitude units (VMU) per minute.Findings Patients were 85% male, had a mean (SD) age of 69 (9) years, and post-bronchodilator FEV1 of 56 (17) %pred. After adjusting for age, sex, socio-economic status, dyspnoea, exercise capacity and anxiety in a linear regression model, both dog walking and grandparenting were significantly associated with an increase both in time in MVPA (18 min/day (p<0.01) and 9 min/day (p<0.05), respectively) and in physical activity intensity (76 VMU/min (p=0.05) and 59 VMUs/min (p<0.05), respectively). Neighbourhood deprivation, surrounding greenness and proximity to green or blue spaces were not associated with physical activity.Conclusions Dog walking and grandparenting are associated with a higher amount and intensity of physical activity in COPD patients.Trial registration number Pre-results, NCT01897298.