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Impact of PTSD and Obstructive Sleep Apnea on Cognition in Older Adult Veterans.

Noland MDW, Paolillo EW, Noda A, Lazzeroni LC, Holty JC, Kuschner WG, Yesavage J, Kinoshita LM. Impact of PTSD and Obstructive Sleep Apnea on Cognition in Older Adult Veterans. Journal of geriatric psychiatry and neurology. 2023 Sep 1; 36(5):386-396.

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Abstract:

Posttraumatic stress disorder (PTSD) and obstructive sleep apnea (OSA) are highly prevalent and comorbid among older adult male veterans. Both PTSD and OSA are independently associated with cognitive deficits in older adults, but little research regarding the impact of comorbid PTSD and OSA among older adults exists. The current study aimed to examine the independent and interactive effects of PTSD and OSA on cognitive functioning in older adult veterans. Older adult male veterans with (  = 106) and without PTSD (  = 69), ranging in age from 55 to 89 (  = 63.35). Participants underwent polysomnography evaluation to assess severity of OSA symptoms and comprehensive neuropsychological evaluation to assess cognitive functioning in 3 domains: attention and processing speed, learning and memory, and executive functioning. Multiple regression analyses showed that the interaction between PTSD and OSA did not predict cognitive performance. However, PTSD significantly predicted poorer attention and processing speed, and increased OSA severity predicted poorer learning and memory. While PTSD and OSA did not have a synergistic detrimental impact on cognition, each independently predicted poorer cognitive functioning within certain domains, suggesting that older adults with these comorbid conditions may experience a wider array of cognitive difficulties.




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