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Centre for Policy on Ageing | |
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| Prevalence of sleep disturbances in a cohort of older drivers | | Author(s) | Carlos A Vaz Fragoso, Katy L B Araujo, Peter H Van Ness |
| Journal title | Journals of Gerontology: Series A, Biological Sciences and Medical Sciences, vol 63A, no 7, July 2008 |
| Pages | pp 715-723 |
| Source | http://www.geron.org |
| Keywords | Sleep disorders ; Driving capability ; Drivers accidents ; Correlation ; United States of America. |
| Annotation | Lower levels of driving capacity in older persons are typically attributed to cognitive, visual, and/or physical impairments, with sleep disturbances rarely considered. This is in contrast to the general adult population for whom sleep disturbances are established risk factors for crashes. The authors therefore set out to determine the prevalence of sleep disturbances in the form of insomnia symptoms, daytime drowsiness, and sleep apnoea risk in a cohort of older drivers and to assess how these relate to self-reported driving capacity. Participants included 430 active drivers aged 70 years in New Haven, CT. Questionnaires measured self-reported insomnia symptoms (Insomnia Severity Index [ISI]), drowsiness (Epworth Sleepiness Scale [ESS]), apnoea risk (Sleep Apnea Clinical Score [SACS]), driving mileage, driver self-ratings (overall and nighttime), and prior adverse driving events. Mean age was 78.5 years, with 85% being male. Overall, 64% were dissatisfied with sleep patterns and 26% had an abnormal ISI (8). A large proportion (60%) reported a moderate-to-high chance of dozing in the afternoon, and 19% had an abnormal ESS (10). Habitual snoring was noted by 43%, with 20% at risk for sleep apnoea. Regarding driving, the most consistent finding was for lower levels of night-time driver self-ratings in participants with insomnia symptoms or drowsiness. Lower levels of driving mileage were also noted, but only with difficulty falling asleep. Otherwise, sleep disturbances were not associated with previous adverse driving events. In this cohort of older drivers, insomnia symptoms and daytime drowsiness were prevalent and associated with lower levels of nighttime driver self-ratings. Although sleep apnoea risk was also prevalent, it was not associated with self-reported driving capacity. These preliminary findings suggest that insomnia symptoms and drowsiness merit continued consideration as risk factors for lower levels of driving capacity in older people, particularly given that effective interventions are available. (KJ/RH). |
| Accession Number | CPA-091214212 A |
| Classmark | CTS: OPF: OPD: 49: 7T |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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