大学生睡眠质量与经前期烦躁障碍

背景：高达8%的育龄妇女受经前期烦躁障碍（PMDD）所困。DSM-IV-TR把失眠或嗜睡等睡眠紊乱作为PMDD的诊断标准之一。大约70%的PMDD患者存在睡眠紊乱。然而,专注解决PMDD对睡眠质量影响的有关研究却非常缺乏。目标：本研究旨在评估女大学生中PMDD的患病率及其对睡眠质量的影响。方法：我们根据精神障碍诊断与统计手册第四版修订版(DSM-IV-TR)开发了PMDD量表（18项）。对月经周期规律、年龄在18~30岁的女大学生,用上述量表诊断PMDD。把研究对象分为PMDD组或非PMDD组,比较两组的睡眠质量。用匹兹堡睡眠质量指数（PSQI）评估睡眠质量。结果：女大学生PMDD的患病率为25.5%。PSQI分析表明PMDD组中80.5%的女大学生PSQI得分＞5,而非 PMDD组中相应的比例只有56.4%（χ2=12.459, p<0.001）。PMDD组PSQI平均分（标准差）为8.2(3.4)而非PMDD组为6.5(3.1)（t=3.648,p<0.001）。结论：患有PMDD的女大学生睡眠问题严重。睡眠质量差、日间功能障碍以及睡眠紊乱是患PMDD的女大学生中常见的睡眠问题。     

A comparative study of the components of sleep quality in medical outpatients

Background. Almost any medical illness that causes significant pain or discomfort may negatively affect the quality of sleep. Moreover sleep disorders may coexist with medical disorders in people of all ages. Measuring sleep dysfunction is an area of active research, but few studies examined subjective ratings of sleep quality in medical patients Method. A total of 250 medical patients with various somatic complaints who attended the ENT, internal, neurology, orthopaedics and urology clinics participated in this study. The patients completed the Pittsburgh Sleep Quality Index (PSQI) which measures the quality of sleep in seven major domains and helps discriminate between individuals who experience poor sleep versus individuals who sleep well. A score ≥6 is considered as a significant sleep disturbance. Results. The PSQI score of the patients from all selected clinics were higher than the reported cut-off point (Mean = 8, SD = 3.42). Significant differences were found in sleep duration (component 3) and sleep disturbances (component 5) between clinics. Pain and worry were the major causes of sleep disturbances reported by the majority of the patients. Conclusion. Sleep disturbances in medically ill patients require careful evaluation for proper treatment that will alleviate the sleep problem without exacerbating concomitant illnesses. Essentially any condition that causes pain or discomfort may cause insomnia and must be considered in the overall treatment plan.     

Sleep and quality of life in the Austrian population

PURPOSE: To compare the self-reported estimation of sleep quality evaluated by the Pittsburgh Sleep Quality Index (PSQI) and life quality assessed by the Quality of Life Index (QLI). BACKGROUND: The PSQI comprised 19 questions and assessed a wide variety of factors relating to sleep quality. The QLI consisted of 10 items for self assessment of different dimensions of life quality. SUBJECTS: A representative Austrian sample (n = 1049) aged above 15 years. PROCEDURE: Interviews in the homes of the participants. RESULTS: 32.1% could be classified as poor sleepers (37% females, 26.5% males). Sleep quality decreased with increasing age, especially in women. Overall quality of life was highest in younger (15-29 years) and lowest in elderly subjects (over 50 years). Life quality decreased with increasing age. Between subjective sleep quality and quality of life a moderate, significant correlation was found (r2= 0.6721). CONCLUSIONS: Complaints about a bad quality of sleep could be used as a screening method in the exploration of patients' quality of life (QoL).     

Subjective sleep quality and sleep problems in the general Japanese adult population.

To dimensionally describe subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) and estimate the prevalence rate of sleep problems (PSQI global score > 5) in the general Japanese adult population, 1871 subjects randomly selected from the 1995 Census were examined. The PSQI component scores (mean +/- SD) widely ranged (e.g. 0.04 +/- 0.31 in hypnotic medication use for males aged 20-29 years, 0.03 +/- 0.18 in hypnotic medication use for females aged 20-29 years, 1.10 +/- 0.94 in sleep latency for males aged 80 or older, 1.52 +/- 1.03 in sleep latency for females aged 80 or older). Statistical significance was found in each component score among age groups by gender. The PSQI global scores (mean +/- SD) by age groups ranged from 4.00 +/- 2.59 to 5.02 +/- 3.89 for males (P < 0.39) and 4.30 +/- 2.34 to 6.75 +/- 4.10 for females (P < 0.001). The respective prevalence rates of sleep problems were 26.4% (95% CI = 23.6, 29.3) for males and 31.1% (95% CI = 28.1, 33.9) for females.     

Myasthenia gravis: sleep quality, quality of life, and disease severity

Introduction: There is much research on quality of life in myasthenia gravis (MG), and its relationship to disease severity is well‐established. However, evidence regarding sleep disturbance in MG is inconclusive. Methods: To evaluate sleep and quality of life among clinically stable MG patients, 54 subjects were investigated by means of the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS) and 15‐Item‐Quality‐Of‐Life Instrument for MG (MG‐QOL15). Results: A pathological PSQI score, which was observed in 59% of patients, was increased in subjects with active disease compared with patients in clinical remission [odds ratio = 4.3; confidence interval 95% (1.0–17.6); P = 0.04]. We found a relationship between PSQI and MG‐QOL15 scores in patients with clinically active disease (r = 0.62; P < 0.001). Conclusions: Our study highlights the high prevalence of sleep disturbance among MG patients. Disease severity may be considered to be a MG‐specific risk factor for patient‐reported sleep disturbance. The MG‐QOL15 and PSQI should be used to estimate the impact of the disease on sleep and quality of life. Muscle Nerve 46: 174–180, 2012     

Sleep quality in advanced cancer patients

OBJECTIVE: The objective of this study was to evaluate the sleep quality of advanced cancer patients and its relationship with pain, depression, and hopelessness. METHODS: The participants were 102 advanced cancer patients who were on palliative treatment. Patients completed a sleep quality instrument, the Pittsburgh Sleep Quality Index (PSQI); a pain assessment tool, the Greek Brief Pain Inventory; a self-report measure of depression, the Beck Depression Inventory; and, finally, the Beck Hopelessness Scale. RESULTS: Multiple regression analyses (forward method) have shown that hopelessness (P=.003), "interference of pain with mood" (P<.0005), and strong opioids (P=.010) seemed to influence patients' sleep quality (PSOI). In an additional regression analysis (enter method), the PSQI is significantly related to opioids (P=.013), hopelessness (P=.035), and "interference of pain with mood" (P=.004). CONCLUSION: Hopelessness, pain treatment, and "interference of pain with mood" may influence the quality of sleep in advanced stages of cancer.     

急性脑血管病患者睡眠质量和相关因素分析

目的 研究急性脑血管病患者的睡眠质量和相关因素。方法 对急性脑血管病组和健康对照组进行匹兹堡睡眠质量指数（Pittsburgh sleep quality index,PSQI）量表测定,比较两组的各项分值差异;进一步对急性脑血管患者进行艾森克人格特征问卷（Eysenck personality questionaire,EPQ）和简易应对方式问卷调查,并与患者的PSQI进行相关分析。结果 急性脑血管病患者PSQI平均得分13.12±2.73分,PSQI>7分者126例（54.07%）。急性脑血管病组患者睡眠质量、入睡时间、睡眠时间、睡眠障碍、睡眠药物、日间功能和睡眠质量指数得分均明显高于对照组患者,差异有显著性（P均<0.001）。Logistic回归分析显示,增龄、左侧病变、前循环病变是影响急性脑血管病患者睡眠质量的独立危险因素,同时急性脑血管病患者的睡眠质量与患者个性特点和积极、消极应对分值具有相关性。结论 急性脑血管病患者睡眠障碍发生率较高,其睡眠质量受年龄、左右侧别、病变血管、个性特点和应对方式等多个因素的影响。     

Test-retest reliability and validity of the Pittsburgh Sleep Quality Index in primary insomnia

OBJECTIVE: Psychometric evaluation of the Pittsburgh Sleep Quality Index (PSQI) for primary insomnia. METHODS: The study sample consisted of 80 patients with primary insomnia (DSM-IV). The length of the test-retest interval was either 2 days or several weeks. Validity analyses were calculated for PSQI data and data from sleep diaries, as well as polysomnography. To evaluate the specificity of the PSQI, insomnia patients were compared with a control group of 45 healthy subjects. RESULTS: In primary insomnia patients, the overall PSQI global score correlation coefficient for test-retest reliability was .87. Validity analyses showed high correlations between PSQI and sleep log data and lower correlations with polysomnography data. A PSQI global score > 5 resulted in a sensitivity of 98.7 and specificity of 84.4 as a marker for sleep disturbances in insomnia patients versus controls. CONCLUSION: The PSQI has a high test-retest reliability and a good validity for patients with primary insomnia.     

Sleep quality in the general population: psychometric properties of the Pittsburgh Sleep Quality Index,derived from a German community sample of 9284 people

BackgroundThe Pittsburgh Sleep Quality Index (PSQI) is frequently used to assess sleep problems in patients. The aim of this study was to provide reference values for this questionnaire, to test psychometric properties, and to analyze associations with psychological, sociodemographic, and behavioral factors.MethodsA German community sample comprising 9284 adult residents (aged 18–80 years) was surveyed using the PSQI and several other questionnaires.ResultsAccording to the generally accepted cut-off (PSQI > 5), 36% of the general population slept badly. Females reported significantly more sleep problems than males (mean scores: M = 5.5 vs. M = 4.4, respectively; effect size d = 0.35), but there was no linear association between age and sleep quality. Sleep problems were correlated with fatigue, quality of life (physical as well as mental), physical complaints, anxiety, and lack of optimism. Sleep quality was also strongly associated with socioeconomic status, professional situation (poorest sleep quality in unemployed people), and obesity. In addition to the results of the PSQI total score, mean scores of specific components of sleep quality were presented (sleep latency, sleep duration, and use of sleep medication).ConclusionThe PSQI proved to be a suitable instrument for measuring sleep quality. Gender differences, psychological factors, and obesity should be taken into account when groups of patients are compared with respect to sleep problems.     

Assessment of sleep quality in benign paroxysmal positional vertigo recurrence

Abstract

Objective: Despite the availability of highly effective treatments, there is a significant recurrence rate of benign paroxysmal positional vertigo (BPPV). This study is aimed to quantitatively measure sleep quality in BPPV patients and correlate it with the recurrence of BPPV.

Methods: In this longitudinal cohort study, the clinical records of 67 elderly or middle-aged adult patients who were diagnosed with BPPV at Neurology Clinic, Beijing Chaoyang Hospital affiliated to Capital Medical University between 2013 and 2014. The ‘recurrent’ and ‘non-recurrent’ BPPV were respectively defined. Primary data collection included the medical history, blood test and Pittsburgh Sleep Quality Index measurement.

Results: Among the total 67 patients after successful treatment, recurrent BPPV is observed in 37.31% patients (n?=?25) within 2 years. Among all 11 variables analyzed between recurrent and non-recurrent groups, only the Pittsburgh Sleep Quality Index (PSQI) scores showed significant difference (p<.001). In details, these differences were also measured in five individual sleep items, including the subjective assessment of sleep quality, sleep latency, sleep duration, the use of sleep-aid medication and daytime dysfunctions (all p<.05). Regression analysis showed patients with higher PSQI score (lower sleep quality) had higher risk of BPPV recurrence [odds ratio (OR)=1.17, 95% confidence interval (CI): 1.04–1.32, p=.0082].

Conclusions: The sleep quality in patients with BPPV recurrence is significantly poorer compared to non-recurrent patients. Our result suggested sleep quality as measured by PSQI is an independent risk factor of BPPV recurrence.     

Relationship between hostility and subjective sleep quality

While hostility and sleep disturbance are the potential risk factors for health problems and disease, few studies have examined the relationship between the two factors. The present study was performed to investigate the relationship between hostility and sleep problems assessed both subjectively and objectively in a nonclinical sample. Sixty-one healthy subjects were enrolled in this study. Hostility was measured according to the Cook–Medley hostility scale. Subjective sleep quality was evaluated according to the global score of the Pittsburgh Sleep Quality Index. Objective sleep was evaluated using actigraphy. A multiple regression analysis revealed that a higher level of hostility was significantly associated with the global score of the Pittsburgh Sleep Quality Index and that a higher level of depression was not associated with the global score of the Pittsburgh Sleep Quality Index. Objective sleep measures were not found to be associated with hostility. Confirming the robust relationship between poor sleep and hostility would have several important treatment implications for preventing health problems.     

A general population study of the Chinese Whiteley-7 index in Hong Kong

Objective

To examine the psychometric properties of the Chinese seven-item Whiteley Index (WI-7) in the general population of Hong Kong.

Methods

A random community-based telephone survey of 3014 respondents aged 15–65 was conducted using a fully structured questionnaire that included the WI-7, 15-item Patient Health Questionnaire (PHQ-15), Sheehan Disability Scale (SDS), and items about the frequency of health service use, perceived helpfulness of doctors, level of satisfaction with doctors, and sociodemographic variables. A sub-sample of 199 respondents was re-interviewed to assess test–retest reliability.

Results

The WI-7 exhibited satisfactory internal consistency (Cronbach's α=0.73) and stable one-month test-retest reliability. The most commonly endorsed item was “worrying a lot about one's health” (55.7%), followed by “worrying about getting the disease oneself if it is brought to his/her attention” (48.7%) and “bothered by many different pains and aches” (33.9%). Age, gender, and monthly family income significantly predicted WI-7 score. Confirmatory factor analysis revealed that a 2-factor structure was superior to a 1-factor structure in fitting the data. WI-7 total score was positively associated with PHQ-15 somatic distress, SDS impairment, number of healthcare visits, lower levels of perceived helpfulness of doctors and of satisfaction with doctors.

Conclusion

The Chinese WI-7 exhibits satisfactory reliability and internal validity in a general population. It is a promising tool for the empirical examination of health anxiety which is a common experience with a mostly typical epidemiological profile among Chinese people in Hong Kong.     

Allostatic load in early pregnancy is associated with poor sleep quality

BackgroundAllostatic load (AL) measures the cumulative impact of chronic stress and is associated with adverse health outcomes. A novel scoring system has previously been developed for AL in early pregnancy that is associated with pre-eclampsia. It was hypothesized that AL, as identified by the present model, is associated with psychosocial stressors and, specifically, poor sleep quality.MethodsWomen were selected from a low-risk, community-dwelling study population who enrolled at <15 weeks gestation. Nine physiologic components were divided among the domains of cardiovascular, metabolic, and inflammatory function. Spearman's rank correlations were used to examine the association of AL with age, income, the Revised Prenatal Distress Questionnaire (NuPDQ), Inventory of Depressive Symptoms (IDS), and Pittsburgh Sleep Quality Index (PSQI). The Wilcoxon rank-sum test was used to compare AL by race and educational attainment.ResultsA total of 103 women were identified, with: a mean age of 29.8 ± 5.0 years, 17.5% black, and mean gestational age 12.2 ± 1.1 weeks. Allostatic load was positively correlated with the PSQI (ρ = 0.23, p = 0.018). There were no associations with age, income, prenatal distress, race, or depression scores. College-educated women had lower AL compared with those with less education (0.57 ± 0.43 vs 0.81 ± 0.55, p = 0.045).ConclusionHigher AL, measured by the pregnancy-specific model, was associated with poorer sleep quality and lower educational attainment, both of which were considered to be chronic stressors. These relationships were consistent with previous findings in non-pregnant populations, and suggest that AL may be useful for capturing the physiologic impact of chronic stress in early pregnancy.     

Sleep disturbances and depression in the elderly in Japan

The purpose of the present study was to evaluate the relationship between sleep disturbances and depression in the Japanese elderly. Methods: These investigations in the Japanese elderly were carried out with the Geriatric Depression Scale, the Pittsburgh Sleep Quality Index, and questions on restless legs syndrome and nocturnal eating disorder. A total of 2023 people (male: 1008; female: 1015; average age: 74.2 +/- 6.3 years) were analyzed by chi2 test and simple and multiple logistic regression. The prevalence of sleep disturbance was 37.3% and that of depression was 31.3%. Female gender and/or older (> or =75 years) age were significantly associated with depression. Characteristics in depressive elderly were poor sleep efficiency, sleep disturbances due to difficulty of initiating sleep (DIS), breathing discomfort, coldness and pain, poor subjective sleep quality and lack of enthusiasm for activities. Sleep disturbances due to using the bathroom, breathing discomfort and coldness and long sleep latency were associated with depression in younger (65-74 years) men. Sleep disturbance due to DIS was associated with depression in older (> or =75 years) men. Sleep disturbance due to pain was associated with depression in younger and older women. Poor sleep efficiency was associated with depression in older women. Poor subjective sleep quality was associated with depression in younger and older men and younger women. Lack of enthusiasm was associated with depression in younger and older men and older women. Restless legs syndrome was statistically significantly associated with depression in younger men. It is concluded that sleep disturbance and depression among the Japanese elderly are closely related symptoms. The features of sleep disturbance with depression differed with sex and age.     

Factor structure of the Chinese version of the Pittsburgh Sleep Quality Index in breast cancer patients

ObjectiveThe Pittsburgh Sleep Quality Index (PSQI) is used extensively to assess subjective sleep disturbance in cancer populations. Although previous studies on the PSQI suggested a better fit for a two- or three-factor model than the original one-factor model, none accounted for the indicator-specific effect between sleep duration and habitual sleep efficiency. This study evaluated the PSQI’s dimensionality and its convergent validity with cancer-related psychopathological states in female breast cancer patients.MethodsThe PSQI was administered to 197 women with breast cancer. Confirmatory factor analysis examined the relative fit of one-, two-, three-, and revised one-factor models. The PSQI’s convergent validity was evaluated via bivariate correlations between the PSQI factor scores and measures of anxiety, depression, fatigue, pain, and quality of life.ResultsConfirmatory factor analyses showed an adequate fit for the revised one-factor model with the PSQI global score as the overall index of sleep disturbance. Although the revised one- and two-factor solutions showed statistically equivalent model fits, the one-factor model was selected due to utility reasons. The severity of sleep dysfunction that the PSQI global score represented was positively correlated with anxiety, depression, fatigue, pain, and reduced quality of life.ConclusionThe results support the PSQI’s original unidimensional structure, demonstrating that the PSQI global score is a valid and parsimonious measure for assessing and screening sleep dysfunction in cancer patients.