Measurement properties of the Minimal Insomnia Symptom Scale (MISS) in an elderly population in Sweden.
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Full text: | |
| Author(s): | Amanda Hellström, Peter Hagell, Cecilia Fagerström, Ania Willman |
| Title: | Measurement properties of the Minimal Insomnia Symptom Scale (MISS) in an elderly population in Sweden. |
| Journal: | BMC Geriatrics |
| Year: | 2010 |
| Volume: | 10:84 |
| ISSN: | 1471-2318 |
| Publisher: | BioMed-Central |
| URI/DOI: | 10.1186/1471-2318-10-84 |
| Other identifiers: | http://www.biomedcentral.com/1471-2318/10/84 |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Health Science (Sektionen för hälsa) School of Health Science S-371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/hal/ |
| Authors e-mail: | amanda.hellstrom@bth.se, amanda.hellstrom@med.lu.se |
| Language: | English |
| Abstract: | Background: Insomnia is common among elderly people and associated with poor health. The Minimal Insomnia Symptom Scale (MISS) is a three item screening instrument that has been found to be psychometrically sound and capable of identifying insomnia in the general population (20-64 years). However, its measurement properties have not been studied in an elderly population. Our aim was to test the measurement properties of the MISS among people aged 65 + in Sweden, by replicating the original study in an elderly sample. Methods: Data from a cross-sectional survey of 548 elderly individuals were analysed in terms of assumptions of summation of items, floor/ceiling effects, reliability and optimal cut-off score by means of ROC-curve analysis and compared with self-reported insomnia criteria. Results: Corrected item-total correlations ranged between 0.64-0.70, floor/ceiling effects were 6.6/0.6% and reliability was 0.81. ROC analysis identified the optimal cut-off score as ≥7 (sensitivity, 0.93; specificity, 0.84; positive/negative predictive values, 0.256/0.995). Using this cut-off score, the prevalence of insomnia in the study sample was 21.7% and most frequent among women and the oldest old. Conclusions: Data support the measurement properties of the MISS as a possible insomnia screening instrument for elderly persons. This study make evident that the MISS is useful for identifying elderly people with insomnia-like sleep problems. Further studies are needed to assess its usefulness in identifying clinically defined insomnia. |
| Subject: | Nursing & Caring Sciences\General Public Health\General |
| Note: | Open access journal |
