Journal of psychosomatic research
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The cognitive test for delirium (CTD) was recently developed to identify delirium in an intensive care unit (ICU) setting. Stepwise discriminant analyses using the original validation sample indicated that a total score formed by summing only two of the nine content scores (visual attention span and recognition memory for pictures) maintained good reliability (coefficient alpha = 0.79) and the ability to discriminate delirium from dementia, schizophrenia, and depression (p < 0.0001) and delirium from moderate to severe dementia (p < 0.0002). This abbreviated version of the CTD is more practical for use by ICU clinicians.
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The association between psychosocial stress and susceptibility to upper respiratory tract infection was investigated in 45 children with a history of recurrent colds and flu, and in 45 healthy children of similar age and distribution. In addition, mucosal immune protection against upper respiratory tract infections was assessed by measuring the concentration of secretory immunoglobulin A (sIgA) and its ratio to albumin in saliva. ⋯ Thus, the findings are consistent with the view that psychosocial stress depletes local immune protection against viral invasion or bacterial colonization of the upper respiratory tract; this depletion may increase susceptibility to colds and flu. Alternatively, psychological disturbances could develop in response to frequent illness.
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The aims of this study were: (1) to obtain a systematic estimate of the levels of fatigue in representative samples of the major occupational groups of health care workers; (2) to examine the relationship between fatigue and mental health as a function of occupational and work role factors; and (3) to test the proposition that fatigue arises from a combination of poor mental health and high job stress. Questionnaire data from 7720 NHS Trust staff was used. Higher levels of fatigue were reported among health care workers in comparison with general population figures. ⋯ Highest levels of fatigability, the onset of symptoms after exertion, were experienced by ancillary and nursing staff. Both general fatigue and fatigability were associated with high levels of psychological distress. Support was also found for the proposition that fatigue arises from a combination of poor mental health and high work demands.
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Two studies assessed whether measures of health, well-being, and sleepiness are better related to sleep quality or sleep quantity. In both studies, subjects completed a 7-day sleep log followed by a battery of surveys pertaining to health, well-being, and sleepiness. ⋯ In addition, average sleep quality was better related to sleepiness than sleep quantity. These results indicate that health care professionals should focus on sleep quality in addition to sleep quantity in their efforts to understand the role of sleep in daily life.