Key clinical point: Tailored interventions based on four activity-sleep profiles may improve health for arthritis patients, especially those with higher levels of sitting and weaker walking habits.

Major finding: Arthritis patients were divided into clusters based on time sleeping and resting during a 24-hour period (high sleepers and low sleepers, defined as more than 8.5 and less than 6.5 hours of sleep, respectively) and time in non-ambulatory or ambulatory activity (high sitters, defined as sitting for more than 13 hours) and balanced activity (defined as more than 5 hours of walking, with half an hour of purposeful walking). Overall, individuals of younger age, stronger walking outside habits, and weaker occupational sitting habits were significantly associated with the balanced activity group, compared with the high sitters group.

Study details: The data come from a cross-sectional cohort study of two randomized trials including 88 adults with rheumatoid arthritis, 32 with lupus, and 52 with knee osteoarthritis; 24-hour sleep and activity were measured using wearable monitors.

Disclosures: The study was supported by The Arthritis Society and the Canadian Institutes of Health Research. Lead author Dr. Feehan had no financial conflicts to disclose.