Coates T J, Killen J D, George J, Marchini E, Silverman S, Hamilton S, Thoresen C E
J Nerv Ment Dis. 1982 Apr;170(4):224-30. doi: 10.1097/00005053-198204000-00007.
Twelve good sleepers and 12 insomniacs were recorded over three nights in their homes. Subjective assessment of sleep indicated minimal disruption due to sleep recording procedures. A cut point of 88 per cent sleep efficiency resulted in correct classification of nine poor sleepers and 10 good sleepers. Multiple discriminant function analyses, using variables related to rapid eye movement sleep, resulted in the same number of correct classifications. The two indices combined resulted in 100 per cent exclusion of false positives for good sleepers and insomniacs. Insomniacs also showed more night-to night variability in sleep and greater difficulty in returning to sleep once aroused. These results show that good sleepers and insomniacs can be distinquished with a high degree of resolution using variables derived from the home all-night sleep recording.
12名睡眠良好者和12名失眠者在自己家中被记录了三个晚上的睡眠情况。睡眠的主观评估表明，睡眠记录程序对睡眠的干扰极小。睡眠效率达到88%这一切点能够正确区分出9名睡眠不佳者和10名睡眠良好者。使用与快速眼动睡眠相关的变量进行的多重判别函数分析也得出了相同数量的正确分类结果。将这两个指标结合起来，能够100%排除睡眠良好者和失眠者中的假阳性情况。失眠者在睡眠方面还表现出更大的夜间变异性，并且一旦被唤醒，重新入睡的难度也更大。这些结果表明，利用从家中整夜睡眠记录中得出的变量，可以高度精确地区分睡眠良好者和失眠者。
