Comparison of two assessment tools that measure insomnia: the insomnia severity index and polysomnography.
Comparison of two assessment tools that measure insomnia: the insomnia severity index and polysomnography.
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DOI：
10.4103/0253-7176.127251
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发表时间：
2014-01
影响因子：
2.8
通讯作者：
Firoozeh M
中科院分区：
文献类型：
--
作者：
Sadeghniiat-Haghighi K;Yazdi Z;Firoozeh M
失眠症是一种常见的睡眠障碍，其特征是难以入睡、睡眠维持或清晨醒来。虽然多导睡眠图（PSG）是评估睡眠障碍的标准方法，但不建议在失眠的临床评估中常规使用。相反，标准问卷可以用于失眠的初步评估。本研究的主要目的是比较失眠严重程度指数（ISI）问卷中收集的患者失眠的主观主诉的类型和严重程度与多导睡眠图评估的结果。在2010-2011年在伊朗进行的这项横断面研究中，对一家诊所的所有睡眠障碍患者进行了评价。研究包括由参与者完成的自填问卷，以提供人口统计学特征和ISI问卷的信息。完成问卷调查后，所有参与者都接受了标准的夜间PSG。受试者为151例患者（47.2 ± 10.8岁）。平均ISS为6.1 ± 4。睡眠启动困难的主观主诉与PSG睡眠启动潜伏期呈显著相关（r = 0.5，P < 0.001）。睡眠维持困难的主观主诉与PSG觉醒次数相关（r = 0.19，P = 0.01）。在PSG研究中，患者对睡眠的满意度低与总睡眠时间较短（r =-0.2，P = 0.02）和快速眼动（REM）睡眠百分比较低（r =-0.25，P = 0.002）相关。患者满意度与PSG测量的睡眠效率之间没有相关性（r =-0.04，P = 0.6）。我们的研究结果表明，客观失眠，测量ISI，与PSG变量和ISI可能是一个有用的工具，以量化感知失眠的严重程度。需要进一步的研究来确定该问卷的敏感性和特异性。
Insomnia is a common sleep disorder, characterized by difficulties in sleep initiation, sleep maintenance or early morning awakening. Although polysomnography (PSG) is a standard method in the evaluation of sleep disorders, it is not recommended for routine use in the clinical assessment of insomnia. Instead, standard questionnaires could be used in the primary evaluation of insomnia. The main object of this study was to compare the type and severity of patients’ subjective complaints of insomnia gathered from insomnia severity index (ISI) questionnaire with the result of their polysomnographic evaluation. In this cross-sectional study conducted during 2010-2011 in Iran, all patients in one clinic with sleep disorders were evaluated. The study consisted of self-administered questionnaires completed by participants to provide information on demographic characteristics and ISI questionnaire. After completing the questionnaire, all the participants underwent standard overnight PSG. Subjects were 151 patients (47.2 ± 10.8 years old). The average ISS was 6.1 ± 4. There was a significant relationship between the subjective complaint of difficulty in sleep initiation and sleep onset latency in PSG (r = 0.5, P < 0.001). Furthermore, there was a correlation between the subjective complaint of difficulty in sleep maintenance and number of awakening in PSG (r = 0.19, P = 0.01). A low patients’ satisfaction from their sleep was associated with lower total sleep time (r = −0.2, P = 0.02) and a lower percentage of rapid eye movement (REM) sleep in their PSG study (r = −0.25, P = 0.002). No relation was found between patients’ satisfaction and sleep efficiency measured with PSG (r = −0.04, P = 0.6). Our findings suggest that objective insomnia, measured with ISI, is related with PSG variables and ISI could be a useful tool to quantify perceived insomnia severity. Further studies are needed to determine the sensitivity and specificity of this questionnaire.