Validity of 2 Sleep Quality Items to Be Used in a Large Cohort Study of Kidney Transplant Recipients

Burkhalter, Hanna; Sereika, Susan M.; Engberg, Sandra; Wirz‐Justice, Anna; Steiger, Jürg; Geest, Sabina De

doi:10.1177/152692481102100104

Cited by 14 publications

(16 citation statements)

References 28 publications

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“…The fit of the three-factor model was confirmed in subsequent studies on samples of Australian adults aged 18 to 59 years (Magee, Caputi, Iverson, & Huang, 2008), renal transplant recipients (Burkhalter et al, 2011), and patients with chronic fatigue syndrome (Mariman, Vogelaers, Hanoulle, Delesie, & Pevernagie, 2012). Although Magee et al (2008) found the three-factor model to have a superior fit compared with the one-factor model, they favored a two-factor model.…”

Section: Factor Structure Of the Psqimentioning

confidence: 64%

The factor structure of the Pittsburgh Sleep Quality Index in persons with traumatic brain injury. A NIDRR TBI model systems module study

Lequerica

Chiaravalloti

Cantor

et al. 2014

NRE

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BACKGROUND: Sleep disturbances are common following traumatic brain injury (TBI). The Pittsburgh Sleep Quality Index (PSQI) is a widely used measure of sleep quality that has been used in numerous populations. Although this measure has been used in TBI research, there are few studies examining the psychometric properties in this population. OBJECTIVE: The current study examined the factor structure of the PSQI in a sample of persons with TBI and tested the one, two, and three factor models derived from previous studies in other populations. METHODS: A telephone interview was conducted with 243 individuals who had sustained a TBI. All participants were approximately one year post-injury. Factor analyses were conducted (exploratory and confirmatory) to examine the factor structure of the PSQI. RESULTS: Results confirm the fit of models previously tested in the literature but also reveal an alternative conceptualization of sleep containing both qualitative and quantitative factors. CONCLUSIONS: While the 3-factor model best fits the data in this TBI sample, the use of a 2-factor model is acceptable and may be more clinically relevant due to the grouping of time-related variables that could provide important information with regard to circadian rhythm disorders.

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Section: Factor Structure Of the Psqimentioning

confidence: 64%

The factor structure of the Pittsburgh Sleep Quality Index in persons with traumatic brain injury. A NIDRR TBI model systems module study

Lequerica

Chiaravalloti

Cantor

et al. 2014

NRE

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“…The most common sleep disorders in hemodialysis patients are insomnia, restless legs syndrome, obstructive sleep apnea, and snoring . In our RTx group, we found a 30.7% prevalence of poor sleep quality and a 34.1% prevalence of poor daytime functioning in the last four wk . RTx recipients commonly also suffer from other sleep disorders, such as chronic insomnia (8%), poor sleep quality (30–34%), obstructive sleep apnea (27%), restless legs syndrome (4.5%) , and periodic limb movement .…”

Section: Theoretical Frameworkmentioning

confidence: 65%

“…On the STCS‐DS, study participants rated their DS over the past four wk on a scale of 0 (no sleepiness) to 10 (extreme sleepiness). Its item response format was made congruent with the STCS sleep quality item . Primary evidence supporting the validity of the STCS‐DS has been developed by our research group .…”

Section: Methodsmentioning

confidence: 99%

Daytime sleepiness in renal transplant recipients is associated with immunosuppressive non‐adherence: a cross‐sectional, multi‐center study

Burkhalter

Wirz‐Justice

Cajochen

et al. 2013

Clinical Transplantation

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“…Sleep-wake disturbances (SWD) are prevalent in renal transplant recipients (RTx) [1]: 49% report poor sleep quality [2,3], 34.1% poor daytime functioning [2] and 51% daytime sleepiness [3]. Other relevant indicators of sleep issues in this population are insomnia (inability to fall asleep or to stay asleep as long as desired), with a preva-lence of 8% [4], restless legs syndrome (neurological disorder) 4.5% [5] and obstructive sleep apnoea 27% [6].…”

Section: Introductionmentioning

confidence: 99%

The effect of bright light therapy on sleep and circadian rhythms in renal transplant recipients: a pilot randomized, multicentre wait-list controlled trial

et al. 2014

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SummaryThis study assessed the effect and feasibility of morning bright light therapy (BLT) on sleep, circadian rhythms, subjective feelings, depressive symptomatology and cognition in renal transplant recipients (RTx) diagnosed with sleep-wake disturbances (SWD). This pilot randomized multicentre wait-list controlled trial included 30 home-dwelling RTx randomly assigned 1:1 to either 3 weeks of BLT or a wait-list control group. Morning BLT (10 000 lux) was individually scheduled for 30 min daily for 3 weeks. Wrist actimetry (measuring sleep and circadian rhythms), validated instruments (subjective feelings and cognition) and melatonin assay (circadian timing) were used. Data were analysed via a random-intercept regression model. Of 30 RTx recipients (aged 58 AE 15, transplanted 15 AE 6 years ago), 26 completed the study. While BLT had no significant effect on circadian and sleep measures, sleep timing improved significantly. The intervention group showed a significant get-up time phase advance from baseline to intervention (+24 min) [(standardized estimates (SE): À0.23 (À0.42; À0.03)] and a small (+14 min) but significant bedtime phase advance from intervention to follow-up (SE: À0.25 (À0.41; À0.09). Improvement in subjective feelings and depressive symptomatology was observed but was not statistically significant. Bright light therapy showed preliminary indications of a beneficial effect in RTx with sleep-wake disturbances. (ClinicalTrials.gov number: NCT01256983)

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Validity of 2 Sleep Quality Items to Be Used in a Large Cohort Study of Kidney Transplant Recipients

Abstract: For kidney transplant patients, validity is strong for the psychosocial questionnaire's sleep quality item, but the mixed findings regarding the validity of the daytime functioning item suggest that additional items are needed to measure daytime functioning.

Cited by 14 publications

References 28 publications

The factor structure of the Pittsburgh Sleep Quality Index in persons with traumatic brain injury. A NIDRR TBI model systems module study

The factor structure of the Pittsburgh Sleep Quality Index in persons with traumatic brain injury. A NIDRR TBI model systems module study

Daytime sleepiness in renal transplant recipients is associated with immunosuppressive non‐adherence: a cross‐sectional, multi‐center study

The effect of bright light therapy on sleep and circadian rhythms in renal transplant recipients: a pilot randomized, multicentre wait-list controlled trial

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