BACKGROUND: Sleep hygiene habits and self-reported sleep quality of those who work from home have yet to be fully understood. As working from home was widely implemented during the COVID-19 pandemic, the period might be a convenient model for studying the measures, as mentioned earlier. OBJECTIVE: This study aimed to assess sleep hygiene habits and self-reported sleep quality in people working from home in March 2020, when the COVID-19 pandemic began. METHOD: This study was designed as a cross-sectional web-based survey. An anonymous questionnaire consisted of sociodemographic variables and questions about personal habits, e.g., exercise activities and caffeine consumption. The outcome measures to assess sleep hygiene and sleep quality were the Sleep Hygiene Index (SHI) before and after the home office (HO) and the Pittsburgh Sleep Quality Index (PSQI). RESULTS: A total of 204 responses were received. The prevalence of significant sleep disturbance (PSQI > 5) was 51 %. The mean PSQI and SHI scores were 6.15±3.385 and 17.67±7.836, respectively. PSQI and SHI showed a significant mutual positive correlation at the level of significance p < 0.001. The total score for SHI was similar before and after working from home (p = 0.982). However, differences were observed in its components. CONCLUSION: The total score on SHI did not change when compared before and during HO. However, working from home was associated with sleep hygiene malpractice in some individual components of SHI. On the other hand, some aspects of sleep hygiene behavior improved during HO.

• Klíčová slova
• Insomnia, PSQI, Pittsburgh sleep quality index, home office, sleep hygiene index,
• MeSH
• COVID-19 * epidemiologie   MeSH
• lidé MeSH
• pandemie MeSH
• průřezové studie MeSH
• spánek fyziologie   MeSH
• spánková hygiena * MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH

OBJECTIVES: The Pittsburgh Sleep Quality Index (PSQI) is one of the widely used and recommended measures of assessing sleep quality in chronic insomnia; however certain psychometric properties of the questionnaire are still unknown in this group of patients. The present study aimed to examine the internal consistency, and structural and convergent validity of the Czech version of the PSQI in chronic insomnia patients. The usefulness of the standard and alternative scoring systems was also investigated in relation to symptoms of sleepiness, insomnia, depression, and anxiety. METHODS: In our study, 105 participants filled out a series of questionnaires including PSQI, Insomnia Severity Index (ISI), Epworth Sleepiness Scale (ESS), and Beck Depression and Anxiety Inventories (BDI, BAI). RESULTS: The internal consistency of the questionnaire using Cronbach's alpha was 0.608. A series of confirmatory factor analyses revealed adequate fit for three structures. A three-factor model descriptively stood out among the rest but subsequent correlational analyses did not provide sufficient support for accepting an alternative scoring model. CONCLUSIONS: The results highlight the issue of structural variance of the PSQI and in chronic insomnia point to the important role of the PSQI components of daytime dysfunction and sleep disturbances in showing comorbid symptoms with daytime sleepiness and psychopathology.

• MeSH
• chronická nemoc MeSH
• deprese psychologie   MeSH
• dospělí MeSH
• faktorová analýza statistická MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• polysomnografie MeSH
• poruchy iniciace a udržování spánku diagnóza   psychologie   MeSH
• průzkumy a dotazníky MeSH
• psychometrie MeSH
• reprodukovatelnost výsledků MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• spánek * MeSH
• stupeň závažnosti nemoci MeSH
• úzkost psychologie   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

OBJECTIVES: Psychometric properties of the Czech version of the Pittsburgh Sleep Quality Index (PSQI-CZ) have been evaluated only in patients with chronic insomnia, and thus, it is unclear whether PSQI-CZ is suitable for use in other clinical and nonclinical populations. This study was aimed at examining the validity and reliability of the PSQI-CZ and at assessing whether the unidimensional or multidimensional scoring of the instrument would be recommended. METHODS: A total of 524 adult subjects from the Czech population participated in the study. The internal consistency of PSQI was evaluated using Cronbach's alpha. The known-group validity was tested using the Kruskal-Wallis H test to verify the difference between patients with sleep disorders and healthy control sample. For testing the structural validity, a cross-validation approach was used with both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). For EFA, the maximum likelihood method with direct oblimin rotation and parallel analysis was used. RESULTS: The internal consistency of PSQI-CZ items was moderate (α = 0.75). Receiver operating characteristic (ROC) curve analysis showed high specificity (0.79) and moderate sensitivity (0.64) using an optimal cut-off score of 10. The EFA revealed a 3-factor structure with factors labelled as "sleep duration and efficiency," "sleep disturbances and quality," and "sleep latency." The CFA showed that the emerged 3-factor model had a partly acceptable fit, which was better than other previously supported models. CONCLUSIONS: A high cut-off score of 10 is recommended to define poor sleep quality. Given the inconsistency of structural analyses, alternative scoring was not recommended. However, the individual components in addition to a total score should be interpreted when assessing sleep quality. We recommend editing and verifying the PSQI-CZ translation.

• MeSH
• dospělí MeSH
• faktorová analýza statistická MeSH
• lidé MeSH
• poruchy spánku a bdění psychologie   MeSH
• překládání MeSH
• psychometrie přístrojové vybavení   MeSH
• reprodukovatelnost výsledků MeSH
• ROC křivka MeSH
• studie případů a kontrol MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

The aim of this study was to compare the reliability of five sleep questionnaires in detecting the occurrence of obstructive sleep apnea (OSA). The study was conducted on a group of 201 patients. The patients completed five sleep questionnaires: the Epworth Sleepiness Scale (ESS), the STOP-Bang questionnaire, the STOP questionnaire, the Berlin questionnaire (BQ) and the Pittsburgh Sleep Quality Index (PSQI). Subsequently, the patients were examined using limited polygraphy, and the sensitivity and specificity of the questionnaires were evaluated. The STOP-Bang, Berlin and STOP questionnaires had the highest sensitivity for OSA detection (81.6%, 78.7%, and 74.2%, respectively), while the sensitivities of PSQI and ESS were low (50.8% and 34.5%). The ESS, STOP-Bang, STOP and Berlin questionnaires had the highest specificity (82.6%, 75%, 61.9%, and 61.9%). In our sample, we found the STOP-Bang and Berlin questionnaires to be the most suitable for OSA screening with the highest sensitivities (81.6%, 78.7%) and satisfactory specificities (75%, 61.9%). The STOP questionnaire was also relatively reliable, especially given its time-saving nature; though short, it preserved satisfactory sensitivity (74.2%) and specificity (61.9%). The ESS and PSQI were unsuitable for OSA screening.

• Klíčová slova
• Berlin questionnaire, Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, STOP questionnaire, STOP-Bang questionnaire, obstructive sleep apnea,
• Publikační typ
• časopisecké články MeSH

Sleep is crucial for maintaining brain homeostasis and individuals with insufficient sleep are prone to more pronounced brain atrophy as compared to sufficiently sleeping peers. Moreover, sleep quality deteriorates with ageing and ageing is also associated with cerebral structural and functional changes, pointing to their mutual bidirectional interrelationship. This study aimed at determining whether sleep quality and age, separately, affect brain integrity and subsequently, whether sleep significantly modulates the effect of age on brain structural and functional integrity. 113 healthy volunteers underwent a multi-modal MRI imaging to extract information about the microstructure and function of major nodes of the ascending reticular activating system. Sleep quality was assessed by self-administered Pittsburgh's sleep quality index (PSQI) questionnaire. Subject were divided into good (global PSQI score <5) and poor (global PSQI score ≥5) sleep quality group. Whereas only borderline correlations were found between sleep quality and MRI metrics, age exhibited widespread correlations with both functional and microstructural MRI metrics. The latter effect was significantly modulated by sleep quality in ascending reticular activating system, hypothalamus, thalamus and also hippocampus in MRI metrics associated with iron load, cellularity and connectivity, mainly in the subgroup with poor sleep quality. Ergo, our results indicate sleep quality as a substantial contributor to both microstructural and functional brain changes in ageing and call for further research in this emerging topic.

• Klíčová slova
• Brain ageing, Diffusion weighted imaging, Multimodal MRI, Relaxometry, Sleep quality,
• Publikační typ
• časopisecké články MeSH

BACKGROUND: Physicians who suffer from poor sleep quality are at an increased risk of mistakes and poor decision-making. We deemed it noteworthy to assess sleep quality in practicing physiatrists, previously reported to be at higher risk of physician burnout, which was documented associated with sleep deprivation. OBJECTIVE: The aim was to estimate the prevalence of sleep disturbance among practicing physiatrists and evaluate the association of sleep quality with their sleep hygiene habits and depression. METHODS: Of the 101 study participants (77 females) who met the inclusion criteria, the majority was between the age of 25 and 40 years (70.3%); 62 (61.4%) were specialists and 39 (38.6%) were in training. In this cross-sectional study, practicing physiatrists were invited to complete an anonymous and voluntary web-based survey. The survey consisted of questions covering demographic information, nicotine and caffeine consumption, exercise habits, and three questionnaires: the Pittsburgh Sleep Quality Index (PSQI), the Beck Depression Inventory-II (BDI-II), and the Sleep Hygiene Index (SHI). RESULTS: Sixty-five (64.4%) respondents showed poor sleep quality (PSQI > 5), and 23 (22.8%) showed at least mild symptoms of depression (BDI-II>13). The mean PSQI, SHI, BDI-II scores were 6.85±3.09, 18.18±5.35, and 8.36±7.52, respectively. Poor sleep quality was significantly positively correlated with symptoms of depression and sleep hygiene misbehavior. CONCLUSION: We found that 64.4% of practicing physiatrists suffered from poor sleep quality, and 22.8% showed at least mild symptoms of depression. Considerable efforts should be directed toward sleep hygiene behavior and mental health improvement.

• Klíčová slova
• Rehabilitation, burnout, depression, sleep, sleep hygiene,
• MeSH
• deprese psychologie   MeSH
• dospělí MeSH
• internet MeSH
• lidé MeSH
• poruchy iniciace a udržování spánku * epidemiologie   MeSH
• poruchy spánku a bdění * etiologie   MeSH
• prevalence MeSH
• průřezové studie MeSH
• průzkumy a dotazníky MeSH
• rehabilitační lékaři * MeSH
• spánek MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika epidemiologie   MeSH

Sleep abnormalities are frequently found in Parkinson's disease (PD). However, it is unclear if they are present from the initial stages of PD. We thus aimed to assess sleep disturbances in newly diagnosed PD patients. We investigated 20 untreated PD patients using the Epworth Sleepiness Scale (ESS), the Pittsburgh Sleep Quality Index (PSQI) and the PD Sleep Scale (PDSS). Video-polysomnography and multiple sleep latency test (MSLT) were performed in 15 patients and 15 healthy controls. The ESS score was abnormally high in one patient, while short MSLT times were found in three other patients. The PSQI was higher (p < 0.05) and the PDSS lower (p < 0.001) in patients compared with controls. Video-polysomnography demonstrated a higher percentage of rapid eye movement sleep without atonia (RWA) in patients compared with controls (mean 28 vs. 2.9%, p < 0.001), whereas only one patient had clinically manifested rapid eye movement sleep behavior disorder (RBD). Interestingly, the occurrence of RWA correlated with the motor score (ρ = 0.65, p < 0.05). This study demonstrates that sleep disturbances emerge, in a proportion of patients, from the early stages of PD. RWA is a common finding while RBD is rarely present in early untreated PD.

• MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• Parkinsonova nemoc komplikace   MeSH
• polysomnografie MeSH
• poruchy spánku z vnitřních příčin epidemiologie   etiologie   MeSH
• senioři MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Leber hereditary optic neuropathy and Dominant optic atrophy are associated with a selective loss of retinal ganglion cells (RGC). A subtype of RGC is responsible for light-dependent physiological processes. The aim of our study was to evaluate both subjective and objective sleep parameters in 36 (18 males; mean age 33.8 ± 16.7) symptomatic/asymptomatic subjects with Leber hereditary optic neuropathy and dominant optic atrophy. The Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS) and nocturnal polysomnography were used to assess sleep disturbances and sleep quality. The questionnaires indicated significantly worse sleep quality (PSQI > 5; average 7.7 ± 3.8) in 21 (70%) and excessive daytime sleepiness (ESS > 10; average 6.3 ± 5.8) in six (20%) individuals. Nocturnal polysomnography has not revealed any significant changes of sleep structure. Rapid eye movement (REM) sleep without atonia was observed in two patients with Leber hereditary optic neuropathy. Obstructive sleep apnea was noted in eight cases. No correlation between subjective and polysomnographic data and no differences between symptomatic and asymptomatic groups were observed. None of the subjects fulfilled criteria for a circadian sleep disorder. In both symptomatic and asymptomatic individuals, a subjective decrease of the quality of sleep and wakefulness was noted without any correlation on polysomnography.

• Klíčová slova
• Dominant optic atrophy, Leber hereditary optic neuropathy, REM sleep without atonia, circadian rhythm, nocturnal polysomnography, sleep disorders,
• MeSH
• dítě MeSH
• dospělí MeSH
• Leberova atrofie zrakového nervu patologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mitochondriální DNA genetika   MeSH
• mladiství MeSH
• mladý dospělý MeSH
• nemoci zrakového nervu komplikace   MeSH
• polysomnografie metody   MeSH
• Check Tag
• dítě MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• mitochondriální DNA MeSH

Sleep and light education (SLE) combined with relaxation is a potential method of addressing sleep and affective problems in older people. 47 participants took part in a four-week sleep education program. SLE was conducted once a week for 60-90 minutes. Participants were instructed on sleep and light hygiene, sleep processes, and practiced relaxation techniques. Participants were wearing actigraphs for 6 weeks, completed daily sleep diaries, and wore blue light-blocking glasses 120 minutes before bedtime. Measures included scores of the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Insomnia Severity Index (ISS), Beck Depression Inventory-II (BDI-II), State-Trait Anxiety Inventory (STAI) and actigraphy measurements of sleep latency, sleep efficiency, and sleep fragmentation. Sleep quality increased after SLE based on the subjective assessment and in the objective measurement with actigraphy. PSQI scores were statistically reduced indicating better sleep. Scores after the intervention significantly decreased in ESS and ISS. Sleep latency significantly decreased, whereas sleep efficiency and fragmentation index (%), did not improve. Mood significantly improved after SLE, with lower scores on the BDI-II and STAI. SLE combined with relaxation proved to be an effective method to reduce sleep problems and the incidence of depressive and anxiety symptoms.

• Klíčová slova
• Sleep hygiene, actigraph, education, light hygiene, senior sleep,
• MeSH
• afekt * fyziologie   MeSH
• aktigrafie MeSH
• cirkadiánní rytmus fyziologie   MeSH
• deprese MeSH
• kvalita spánku MeSH
• lidé středního věku MeSH
• lidé MeSH
• relaxace fyziologie   MeSH
• relaxační terapie metody   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• spánek * fyziologie   MeSH
• světlo MeSH
• úzkost MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

OBJECTIVES: We aimed to investigate the prevalence of restless legs syndrome (RLS) and sleep disorders in patients with rheumatoid arthritis (RA), and the association of iron deficiency with them. MATERIALS AND METHODS: The study included 72 patients with RA (59 females, 13 males), and 50 healthy control subjects (57 females, 15 males). Assessments were made using the International RLS Rating Scale, Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale, Fatigue Severity Scale (FSS), Beck anxiety and depression index and the SF-36 quality of life scores. RESULTS: We found that the frequency of RLS in RA patients was 29.1% and 13.8% in healthy control (p = 0.021). RA patients had 44.4% iron deficiency and 5.5% anemia of chronic disease. We found that 52.3% of patients with iron deficiency had RLS. There was an independent relationship between present of RLS and FSS (Beta [β] = 0.317, p = 0.005) and total iron binding capacity (TIBC) (β = 0.244, p = 0.031). There was an independent relationship between RLS severity score and PSQI (β = 0.264, p = 0.025) and social functionality (β = 0.302, p = 0.009). CONCLUSION: The prevalence of iron deficiency is high in RA in the developing countries. Analysis obtained in patients with RA is suggestive of an association between iron deficiency and increased frequency of RLS. The presence of RLS in patients with RA negatively affects sleep quality, psychiatric status, and quality of life of patients with RA. TIBC value may be a predictive marker for early detection of RLS in patients with RA.

• Klíčová slova
• iron deficiency, restless legs syndrome, rheumatoid arthritis, sleep disorders, total iron binding capacity,
• MeSH
• anemie z nedostatku železa * komplikace   epidemiologie   MeSH
• anemie * MeSH
• kvalita života MeSH
• lidé MeSH
• poruchy spánku a bdění * MeSH
• revmatoidní artritida * komplikace   epidemiologie   MeSH
• stupeň závažnosti nemoci MeSH
• syndrom neklidných nohou * komplikace   epidemiologie   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH