1071 AMOUNT OF SLOW WAVE SLEEP IS ASSOCIATED WITH THE DISCREPANCIES BETWEEN OBJECTIVE AND SUBJECTIVE SLEEP MEASURES

Abstract Introduction: Discrepancies between objective and subjective sleep measures are common, however, they may be amplified within chronic pain populations. We explored factors hypothesized to contribute to discrepancies between self-report and objective sleep measures (i.e., actigraphy; polysomnography) in Temporomandibular Joint Disorder (TMJD), a chronic pain condition with a high prevalence of sleep disturbances. Methods: Baseline data was collected from 125 women diagnosed with TMJD and sleep disturbance (Insomnia Severity Index>8) as part of a larger study evaluating psychological interventions for sleep and pain. Assessment included self-report questionnaires, a one-night in-home polysomnography (PSG), 14 days of actigraphy and 14 days of daily diaries measuring standard sleep variables as well as mood and pain. Results: Correlations between self-report and actigraphy measures of sleep with PSG showed the following: Total Sleep Time (TST) (rs=.62-.70; p