The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Confirmatory factor analysis of the Insomnia Severity Index (ISI) and invariance across race: a pooled analysis of MsFLASH data
Open accessAbstract
OBJECTIVE: Women's sleep at menopause is widely reported to be problematic. The Insomnia Severity Index (ISI) is a commonly used tool for quantifying sleep problems in clinical and research settings, but psychometric properties in postmenopausal women have not been reported. Our study aim was to examine the factor structure of the ISI in a large and diverse sample of midlife women with hot flashes. METHODS: Baseline data were from 899 women enrolled in one of the three clinical trials using similar entry criteria conducted by the Menopause Strategies Finding Lasting Answers to Symptoms and Health research network. We conducted confirmatory factor analyses for the total sample and within strata defined by race/ethnicity (black and white women). RESULTS: The ISI had two factors in the total sample. The two-factor structure was consistent across black and white women, with the exception of one item "difficulty falling asleep." CONCLUSIONS: The ISI in midlife women with hot flashes is composed of two factors that capture dimensions of the insomnia severity and daytime impact. The instrument is a psychometrically sound scale appropriate for use in research and clinical practice to capture the severity and daytime impact of insomnia symptoms in diverse samples of midlife women with hot flashes. An abbreviated screening of two items could be considered to determine if further evaluation is needed of sleep complaints.
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“This ‘nocturnal’ score has also recently been investigated in other insomnia research [66,67], and has previously been utilized in several COMISA treatment studies [52,63,64].”
From Co-morbid insomnia and sleep apnea (COMISA): Prevalence, consequences, methodological considerations, and recent randomized controlled trials (2019) · cites this paper as [67]
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“This ‘nocturnal’ score has also recently been investigated in other insomnia research [66,67], and has previously been utilized in several COMISA treatment studies [52,63,64].”
Metadata
- Authors
- Otte, J. L., Bakoyannis, G., Rand, K. L., Ensrud, K. E., Guthrie, K. A., Joffe, H., McCurry, S. M., Newton, K. M., & Carpenter, J. S.
- Affiliations
- Indiana University Indianapolis (US)
- Indiana University – Purdue University Indianapolis (US)
- University of Minnesota (US)
- Fred Hutch Cancer Center (US)
- Brigham and Women's Hospital (US)
- University of Washington (US)
- Kaiser Permanente Washington Health Research Institute (US)
- Corresponding author
- Otte, Julie L.
- ORCID
- Venue
- Menopause
- Published
- 2019-04-15
- Volume
- 26
- Issue
- 8
- Pages
- 850-855
- ISSN
- 1072-3714 (ISSN-L)
- 1530-0374
- PMC
- PMC6663566
- OpenAlex
- W2940806507
- Cited by
- 26
- References
- 32
- Citations by year
- 2026: 6 · 2025: 3 · 2024: 5 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 3 · 2019: 2
- FWCI
- 2.95
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Menopause The Journal of The North American Menopause Society (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- IUScholarWorks (Indiana University) (submittedVersion)
- Purdue University Indianapolis (Indiana University) (submittedVersion)
- PMC
- Funders
- National Institute on Aging (U01AG032699, U01AG032669, R01AG048209, U01AG032682, U01AG032700, U01AG032659)
- National Cancer Institute (K05CA175048)
- National Center for Research Resources (UL1RR025761)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Keywords
- Insomnia Severity Index, insomnia severity, menopause, hot flashes, middle-aged women, factor structure, measurement invariance, race and ethnicity, psychometric properties, sleep complaints
- MeSH terms
- Black or African American, Factor Analysis, Statistical, Female, Humans, Sleep Initiation and Maintenance Disorders, Menopause, Middle Aged, Severity of Illness Index, Sleep, Hot Flashes, White People
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