Chronic obstructive pulmonary disease (COPD) was associated with increased risks of insomnia symptoms and hospitalizations, researchers reported here.
Based on survey data of noninstitutionalized participants, roughly half of those with COPD had insomnia symptoms (48.1%), twice the rate of those without COPD, according to Maurice Ohayon, MD, PhD, of the Stanford Sleep Epidemiology Research Center in Palo Alto, Calif.