Factor structure and psychometric properties of the Pittsburgh Sleep Quality Index in community-based adolescents

Raniti, Monika; Waloszek, Joanna M; Schwartz, Orli; Allen, Nicholas; Trinder, John

doi:10.1093/sleep/zsy066

Cited by 129 publications

(122 citation statements)

References 78 publications

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“…Since PSQI may be comprised of multiple dimensions, a good understanding of its factor structure in patients with OS can benefit further clinical application. The best factor structure of PSQI varies among previous studies (Koh, Lim, Chia, & Lim, ; Qiu et al, ; Raniti, Waloszek, Schwartz, Allen, & Trinder, ; de la Vega et al, ), probably due to divergent diagnosis of the subjects, inconsistent statistical methodology and different country of origin. Many studies supported a two‐factor solution, which can be more representative of the PSQI's scale structure than other models (Guo et al, ; Qiu et al, ).…”

Section: Discussionmentioning

confidence: 88%

“…Since PSQI may be comprised of multiple dimensions, a good understanding of its factor structure in patients with OS can benefit TA B L E 4 The relationship between the 7 components of PSQI and the global score of MAF further clinical application. The best factor structure of PSQI varies among previous studies (Koh, Lim, Chia, & Lim, 2015;Qiu et al, 2016;Raniti, Waloszek, Schwartz, Allen, & Trinder, 2018;de la Vega et al, 2015), probably due to divergent diagnosis of the subjects, inconsistent statistical methodology and different country of origin.…”

Section: Discussionmentioning

confidence: 94%

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Evaluation of sleep quality in adolescent patients with osteosarcoma using Pittsburgh Sleep Quality Index

Tao

et al. 2019

Eur J Cancer Care

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The sleep quality of patients with osteosarcoma (OS) was poorly understood. We aimed to evaluate the prevalence of sleep dysfunction in adolescent patients with OS using the Pittsburgh Sleep Quality Index (PSQI) and to further investigate the psychometric properties of the PSQI in this cohort of patients. Fifty four adolescent patients with OS who underwent chemotherapy treatment in our clinic centre were included. Sleep quality was assessed with the Chinese PSQI. Cronbach's alpha was calculated to evaluate the internal consistency. The confirmatory factor analysis (CFA) was used to determine the fitness of a two‐factor structure. Sleep disturbance was observed in 57.4% (31/54) of the patients. Patients with the presence of metastasis or more than 2 cycles of chemotherapy were found to have remarkably higher median global score. The overall Cronbach's alpha was 0.87. The CFA showed an overall comparative fit index of 0.97, a root mean square error of approximation of 0.06 and a standardised root mean square residual of 0.07 respectively. PSQI was a reliable instrument to evaluate the sleep quality of adolescent patients with OS. Over half of the patients may experience sleep disturbance during the treatment. Early psychological interventions were recommended to improve the sleep quality of the patients.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 94%

Evaluation of sleep quality in adolescent patients with osteosarcoma using Pittsburgh Sleep Quality Index

Tao

et al. 2019

Eur J Cancer Care

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“…32 Model Chi-square test P values of >0.05 indicate good fit. 33 We studied construct validity by correlating ASAS HI scores with scores of the comparator PROMs and using Spearman's rank correlation coefficients to assess the associations. High (r = 0.5-0.8) and moderate correlation coefficients (r = 0.3-0.5) suggest that the scores from 2 PROMs are correlated, whereas low correlation coefficients (r ≤ 0.3) suggest that the PROMs are measuring different constructs.…”

Section: Discussionmentioning

confidence: 99%

“…Comparative fit index (CFI) > 0.95, Tucker‐Lewis Index (TLI) > 0.95, root mean square error of approximation (RMSEA) < 0.06 and standardized root mean residuals (SRMR) < 0.08 are indicative of good fit . Model Chi‐square test P values of >0.05 indicate good fit …”

Section: Methodsmentioning

confidence: 99%

Validity and reliability of the Assessment of Spondyloarthritis International Society Health Index in English‐speaking patients with axial spondyloarthritis in Singapore

Kwan

Fong

et al. 2019

Int J of Rheum Dis

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Objectives To assess the validity and reliability of the Assessment of Spondyloarthritis International Society Health Index (ASAS HI) among patients with axial spondyloarthritis (axSpA) in Singapore. Methods We collected data from English‐speaking patients with axSpA seen at a dedicated axSpA clinic in a Singapore tertiary referral hospital from 2017 to 2018. Face validity of the English version of ASAS HI was assessed through cognitive debriefing interviews (CDIs). Structural validity was assessed with confirmatory factor analysis. Convergent construct validity was assessed with 12 a priori hypotheses about the magnitude and direction of correlations between the ASAS HI summary score and other patient‐reported outcome measures. Internal consistency was assessed using Cronbach's alpha. Test‐retest reliability was assessed by intraclass correlation coefficient (ICC). Measurement error was assessed by analyzing smallest detectable change (SDC). Results Ten patients (age range 22‐46 years, 50% male) participated in CDIs and face validity was supported. Among 108 patients (median age: 37 [21‐77], 80.6% males), unidimensionality was confirmed (comparative fit index = 0.960, Tucker‐Lewis Index = 0.952, root mean square error of approximation = 0.038, standardized root mean residuals = 0.068, model Chi‐square test P = 0.1251) in the 17‐item ASAS HI. The ASAS HI showed good internal consistency of 0.83 and excellent test‐retest reliability (ICC = 0.95; 95% CI 0.91‐0.98) when baseline was compared with week 2. SDC was 1.02. Convergent validity was supported as hypotheses were confirmed in 100% of the results. Conclusions This study supports the ASAS HI as a valid and reliable measure of health status for use in patients with axSpA in Singapore.

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“…This item will allow the assessment of the prevalence of self-harm and its frequency. The PSQI has demonstrated acceptable to good internal homogeneity, test-retest reliability and convergent validity across studies (60)(61)(62).…”

Section: Self-harm Questionnairementioning

confidence: 98%

A Trial Protocol for the Effectiveness of Digital Interventions for Preventing Depression in Adolescents: The Future Proofing Study

Werner‐Seidler

Huckvale

Larsen

et al. 2019

Preprint

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Background Depression frequently first emerges during adolescence, and one in five young people will experience an episode of depression by the age of 18 years. Despite advances in treatment, there has been limited progress in addressing the burden at a population level. Accordingly, there has been growing interest in prevention approaches as an additional pathway to address depression. Depression can be prevented using evidence-based psychological programs. However, barriers to implementing and accessing these programs remain, typically reflecting a requirement for delivery by clinical experts and high associated delivery costs. Digital technologies, specifically smartphones, are now considered a key strategy to overcome the barriers inhibiting access to mental health programs. The Future Proofing Study is a large-scale school-based trial investigating whether Cognitive Behaviour Therapies (CBT) delivered by smartphone application can prevent depression.Methods A randomized controlled trial targeting up to 20,000 Year 8 Australian secondary school students will be conducted. In Stage I, schools will be randomized at the cluster level to receive either the CBT intervention app (SPARX) or to a non-active control group comparator. The primary outcome will be symptoms of depression and secondary outcomes include psychological distress, anxiety and insomnia. At the 12-month follow-up, participants in the intervention arm with elevated depressive symptoms will participate in an individual-level RCT (Stage II) and be randomised to receive a second CBT app which targets sleep difficulties (Sleep Ninja) or a control condition. Assessments will occur at post-intervention (both trial stages), and at 6, 12, 24, 36, 48- and 60-months post-baseline. Primary analyses will use an intention-to-treat approach and compare changes in symptoms from baseline to follow-up relative to the control group using mixed effect models.Discussion This is the first trial testing the effectiveness of smartphone apps delivered to school students to prevent depression at scale. Results from this trial will provide much needed insight into the feasibility of this approach. They stand to inform policy and commission decisions concerning if and how such programs should be deployed in school-based settings in Australia and beyond.

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Factor structure and psychometric properties of the Pittsburgh Sleep Quality Index in community-based adolescents

Cited by 129 publications

References 78 publications

Evaluation of sleep quality in adolescent patients with osteosarcoma using Pittsburgh Sleep Quality Index

Evaluation of sleep quality in adolescent patients with osteosarcoma using Pittsburgh Sleep Quality Index

Validity and reliability of the Assessment of Spondyloarthritis International Society Health Index in English‐speaking patients with axial spondyloarthritis in Singapore

A Trial Protocol for the Effectiveness of Digital Interventions for Preventing Depression in Adolescents: The Future Proofing Study

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