TY - JOUR
T1 - Abbreviated versions of the insomnia severity index to screen for comorbid insomnia among obstructive sleep apnea patients
AU - Yanagimori, Marcela
AU - Fernandes, Mariana D.
AU - Grad, Gustavo F.
AU - Monare, Aline B.
AU - Garcia, Bianca M.S.P.
AU - Rosanelli, Ivana
AU - Mariano, Paulo M.M.S.
AU - Drummond, Sean P.A.
AU - O'Driscoll, Denise M.
AU - Edwards, Bradley A.
AU - Lorenzi-Filho, Geraldo
AU - Genta, Pedro R.
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2025/2
Y1 - 2025/2
N2 - Study objectives: The comorbidity of insomnia and obstructive sleep apnea (COMISA) is common and associated with adverse clinical consequences. While insomnia is often underdiagnosed among individuals with OSA, the identification of insomnia among these individuals may lead to improved medical care. Our objective was to assess the performance of two simplified tools (insomnia severity index-2 (ISI-2) and ISI-3) to identify insomnia among individuals with OSA. We hypothesized that the ISI-2 and ISI-3 perform well to diagnose insomnia among individuals with OSA. Methods: Four different cohorts of individuals with sleep disorders were studied. Cohorts 1,2 and 3 included individuals with OSA. Cohort 4 included individuals with insomnia only. The performance of ISI-2 and ISI-3 was compared to ISI-7-based diagnosis of insomnia using receiving operating characteristic curve analysis. Results: Cohorts 1, 2, 3 and 4 included 490, 124, 39 and 118 individuals, respectively. Individuals from cohorts 1, 2 and 3 were middle-aged, obese and had severe OSA on average. Individuals from cohort 2 were predominantly male while from cohorts 3 and 4 were predominantly female. Individuals from cohort 4 were slightly younger, and eutrophic on average. Cohorts 3 and 4 had higher insomnia severity (ISI-7) than cohorts 1 and 2. Using cohort 1, the best cut-offs for ISI-2 and ISI-3 were ≥6 and ≥8, respectively. Area under the curve (AUC) for ISI-2 was .900, .951 and .893 among cohorts 1, 2 and 4, respectively. AUC for ISI-3 was .924, .961 and .936 among cohorts 1, 2 and 4, respectively. Conclusion: ISI-2 and ISI-3 are accurate screening tools for insomnia among individuals with sleep disorders. Easy recognition of insomnia among individuals with COMISA may improve clinical outcomes.
AB - Study objectives: The comorbidity of insomnia and obstructive sleep apnea (COMISA) is common and associated with adverse clinical consequences. While insomnia is often underdiagnosed among individuals with OSA, the identification of insomnia among these individuals may lead to improved medical care. Our objective was to assess the performance of two simplified tools (insomnia severity index-2 (ISI-2) and ISI-3) to identify insomnia among individuals with OSA. We hypothesized that the ISI-2 and ISI-3 perform well to diagnose insomnia among individuals with OSA. Methods: Four different cohorts of individuals with sleep disorders were studied. Cohorts 1,2 and 3 included individuals with OSA. Cohort 4 included individuals with insomnia only. The performance of ISI-2 and ISI-3 was compared to ISI-7-based diagnosis of insomnia using receiving operating characteristic curve analysis. Results: Cohorts 1, 2, 3 and 4 included 490, 124, 39 and 118 individuals, respectively. Individuals from cohorts 1, 2 and 3 were middle-aged, obese and had severe OSA on average. Individuals from cohort 2 were predominantly male while from cohorts 3 and 4 were predominantly female. Individuals from cohort 4 were slightly younger, and eutrophic on average. Cohorts 3 and 4 had higher insomnia severity (ISI-7) than cohorts 1 and 2. Using cohort 1, the best cut-offs for ISI-2 and ISI-3 were ≥6 and ≥8, respectively. Area under the curve (AUC) for ISI-2 was .900, .951 and .893 among cohorts 1, 2 and 4, respectively. AUC for ISI-3 was .924, .961 and .936 among cohorts 1, 2 and 4, respectively. Conclusion: ISI-2 and ISI-3 are accurate screening tools for insomnia among individuals with sleep disorders. Easy recognition of insomnia among individuals with COMISA may improve clinical outcomes.
KW - COMISA
KW - Insomnia
KW - ISI
KW - OSA
UR - http://www.scopus.com/inward/record.url?scp=85210367671&partnerID=8YFLogxK
U2 - 10.1016/j.sleep.2024.11.035
DO - 10.1016/j.sleep.2024.11.035
M3 - Article
C2 - 39615273
AN - SCOPUS:85210367671
SN - 1389-9457
VL - 126
SP - 19
EP - 24
JO - Sleep Medicine
JF - Sleep Medicine
ER -