Sleep and work productivity loss in multiple sclerosis: An Australian study

Area of Science:

• Neurology
• Sleep Medicine
• Occupational Health

Background:

• Multiple sclerosis (MS) frequently causes poor sleep quality and reduced work productivity.
• MS symptoms are known to exacerbate sleep disturbances and impact daily functioning.

Purpose of the Study:

• To investigate the relationship between sleep quality, daytime sleepiness, and work productivity loss in individuals with MS.
• To explore the mediating role of other MS symptoms in these associations.

Main Methods:

• A cohort of 526 participants from the Australian Multiple Sclerosis Longitudinal Study was analyzed.
• Work productivity loss was assessed using the Work Productivity and Activity Impairment MS version questionnaire.
• Cragg hurdle regression models were employed to determine statistical associations.

Main Results:

• Poor sleepers reported higher work productivity loss (59.7%) than good sleepers (34.4%).
• Worse sleep quality and increased daytime sleepiness were significantly linked to total work productivity loss.
• MS symptoms, particularly fatigue and cognitive issues, acted as key mediators in the sleep-work productivity relationship.

Conclusions:

• Poor sleep quality and daytime sleepiness are directly associated with work productivity loss in MS.
• Interventions targeting sleep disturbances and MS symptoms may enhance work productivity for affected individuals.