Total Insomnia Severity Index Score Research Articles

Translating the Insomnia Severity Index Into Arabic

The purpose of this study was to translate the Insomnia Severity Index (ISI) into Arabic (Fusha dialect), and obtain preliminary reliability and validity estimates for the translated version. Arabic populations experience sleep problems that interfere with their vitality and quality of life. The ISI was established to screen for insomnia in both clinical and research situations. This study used a descriptive correlational design. The ISI was translated into Arabic using the back-translation method and compared with three other sleep measures: the Pittsburgh Sleep Quality Index, the Epworth Sleepiness Scale, and the Vitality Subscale from the Medical Outcomes Study Short Form-36. These measures were administered to 35 healthy Arabic bilingual participants from three community locations. The mean ISI score was 9.2 (SD = 5.8; range 0-20). Internal consistency reliability was 0.84. The correlations between the total ISI score and the single items ranged from 0.49 to 0.92 (p < .01). In terms of convergent validity, the total ISI score showed a strong positive correlation with the Pittsburgh Sleep Quality Index global score (r = 0.76, p < .001) and a moderate, negative correlation with vitality (r = -0.38, p =.026). The translated ISI demonstrated adequate reliability and validity. The translated ISI needs further testing in a larger sample of both clinical and healthy Arabic populations in their own countries. Preliminary psychometric estimates show that the translated ISI is reliable and valid in this community-dwelling Arabic sample. The translated ISI allows for Arabic researchers to screen for insomnia and plan for future intervention studies.

On the uniformity of cardiopulmonary exercise testing in chronic heart failure

Sleep disturbance due to nighttime awakening is a well-documented symptom of carpal tunnel syndrome. While relief of nighttime waking following carpal tunnel release (CTR) has been demonstrated, the effect of CTR on overall sleep quality has not been fully investigated. We hypothesized that CTR would result in significant improvement in overall sleep quality as well as patients’ overall satisfaction with their sleep habits.Cases of carpal tunnel syndrome with positive nerve studies, and treated with CTR, were prospectively enrolled. Demographic data, electromyography (EMG) severity, Quick Disabilities of the Arm, Shoulder, and Hand questionnaire, and Insomnia Severity Index (ISI) scale data were collected.A total of 398 patients were enrolled, with 99% available at 2 weeks and 64% available at 3-month final follow-up. At final follow-up, average Quick Disabilities of the Arm, Shoulder, and Hand score improved significantly from the preoperative value. Average ISI score on all 7 sleep categories on the survey improved significantly from before surgery to the first postoperative visit. However, the total ISI score did not further improve significantly between the 2-week and the 3-month postoperative visits. The ISI score improvements did not correlate with EMG severity.Patients undergoing CTR demonstrated significant improvement in mean scores for 7 aspects of sleep quality. Sleep improvement was unrelated to preoperative EMG severity and was experienced within 2 weeks of surgery.Therapeutic II.