Ford C V, Wentz D K
South Med J. 1984 Nov;77(11):1435-42. doi: 10.1097/00007611-198411000-00019.
Previous reports have suggested that first-year graduate physicians have a high incidence of psychologic distress and may show cognitive impairment as a result of sleep deprivation. We periodically evaluated 27 interns during their training year to determine amount of sleep, mood states, reaction time, critical flicker fusion, and symptoms of depression. We found the incidence of major depression in our subjects (four of 27) to be lower than previously reported but higher than expected for that age group in the general population. Risk factors for depression during the internship year were history of major depression, female sex, and unmarried status. The only significant change in average mood state was that anger progressively increased during the year. Subjects slept an average of 5.95 hours per 24-hour day during the year. Correlational analysis indicated that, contrary to predictions, performance on reaction time and critical flicker fusion improved with less sleep. At the end of the year, subjects regarded the year as stressful but not more so than had been anticipated.
先前的报告表明，一年级住院医师心理困扰的发生率很高，并且可能由于睡眠不足而出现认知障碍。我们在27名实习医生的培训期间定期对他们进行评估，以确定睡眠时间、情绪状态、反应时间、临界闪光融合频率以及抑郁症状。我们发现，我们研究对象中重度抑郁症的发生率（27人中有4人）低于先前报告的水平，但高于该年龄组在一般人群中的预期发生率。实习期间患抑郁症的风险因素包括重度抑郁症病史、女性以及未婚状态。平均情绪状态唯一显著的变化是，一年中愤怒情绪逐渐增加。这一年里，研究对象平均每天睡眠5.95小时。相关性分析表明，与预测相反，睡眠时间减少时反应时间和临界闪光融合频率的表现反而有所改善。在这一年结束时，研究对象认为这一年压力很大，但并不比预期的更大。
