Introduction

Physical activity (PA), sedentary behaviour (SB), and sleep are risk factors for mortality in adults with COPD. There is a paucity of data from low- and middle-income countries and this is the first study in Sri Lanka examining these behaviours.

Aims

To compare PA, SB and sleep quality of Sri Lankan adults with and without COPD.

Methods

A cross-sectional study recruited 100 adults with COPD and 150 adults without COPD. PA and SB were measured with International Physical Activity Questionnaire and sleep quality via Pittsburgh Sleep Quality Index (PSQI). PA was categorized as inactive (<600MET-min/week), minimally active (600-2999MET-min/week), or health enhancing PA (HEPA, ?3000MET-min/week). Participants were classed as not sedentary (sitting ?4 hours/day) or sedentary (sitting >4 hours/day). Sleep quality was classified as good (PSQI ?5) or poor (PSQI >5).

Results

Adults with COPD were less physically active than controls (16% vs 13% inactive, 45% vs 23% minimally active and 39% vs 64% HEPA, p=0.02). Both groups were sedentary (77% vs 85%, p=0.33). Adults with COPD reported worse sleep quality than controls (79% vs 17% poor, PSQI score 9±5 vs 3±3, p<0.01). Adults with COPD were more inactive, sedentary and had poor sleep than controls (3% vs 9%) (Fig:1).

Conclusions

Sri Lankan adults living with COPD are less physically active and with worse sleep quality than adults without COPD.