Sleep disturbance linked to suicidal ideation in postural orthostatic tachycardia syndrome

We investigated the prevalence of suicidal ideation in relationship with symptoms of sleep disruption in people with postural orthostatic tachycardia syndrome (POTS). Online surveys (including the Pittsburgh Sleep Quality Index and the Suicide Behaviors Questionnaire - Revised) were completed by 705 POTS patients and 170 non-POTS controls. Poor sleep quality was reported in 98.4% of POTS patients with a calculated subjective sleep efficiency of 65.4%. The POTS group's sleep efficiency was significantly lower ( [873]= -11.32;