Development and preliminary validation of the Chinese version of the Sleep-Associated Monitoring Index

Shu Fen Chan, Tso Hsiao Chen, Yuan Mei Liao, Kuei Ru Chou, Pei Shan Tsai

研究成果: 雜誌貢獻文章

4 引文 (Scopus)

摘要

Objective: To examine the psychometric properties of the Chinese version of the Sleep-Associated Monitoring Index (SAMI) in Taiwanese haemodialysis patients. Design: An instrument translation and validation study. Setting: A haemodialysis (HD) unit in a university-affiliated medical centre in northern Taiwan. Participants: 206 patients who were 18 or above, diagnosed with end-stage renal disease and under maintenance HD twice or thrice a week, 3. h or more per session for more than 3 months. Methods: A principal component analysis was used to examine the construct validity of the SAMI. The participants were classified into poor (n= 160) and good sleepers (n= 46) using a cut-off value of 5 on the Pittsburgh Sleep Quality Index (PSQI). All participants filled out the Beck Depression Inventory (BDI) and Back Anxiety Inventory (BAI) along with the SAMI. Internal consistency was examined by the Cronbach's α. To assess test-retest reliability, the participants were asked to fill out the SAMI on a second occasion at a 2-week interval. Results: Eight subscales emerged from the principal component analysis. Individual with insomnia had significantly higher total SAMI scores (p<0.001). The SAMI total score significantly correlated to the PSQI, BDI, and BAI (r= 0.65, 0.67, 0.67; all p<0.001). Cronbach's α was 0.95 for the entire scale. The intra-class correlation coefficient between the initial and retest SAMI total score was 0.72 (p<0.001). The SAMI-Chinese demonstrated an area under the receiver operation characteristic curve of 0.771 (SE = 0.044; 95% CI: 0.685-0.857; p<0.001) in detecting individuals with poor sleep. A cut-off value of 51 indicated a sensitivity of 0.86 and a specificity of 0.63 in distinguishing between poor and good sleepers. Conclusions: The SAMI-Chinese demonstrated excellent construct validity, contrast group validity, external validity, internal consistency, and satisfactory test-retest reliability. It also demonstrated satisfactory diagnostic ability for insomnia.
原文英語
頁(從 - 到)54-64
頁數11
期刊International Journal of Nursing Studies
49
發行號1
DOIs
出版狀態已發佈 - 一月 2012

指紋

Polysomnography
Renal Dialysis
Equipment and Supplies
Sleep
Sleep Initiation and Maintenance Disorders
Principal Component Analysis
Reproducibility of Results
Anxiety
Depression
Aptitude
Validation Studies
Taiwan
Psychometrics
Chronic Kidney Failure
Maintenance

ASJC Scopus subject areas

  • Nursing(all)

引用此文

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title = "Development and preliminary validation of the Chinese version of the Sleep-Associated Monitoring Index",
abstract = "Objective: To examine the psychometric properties of the Chinese version of the Sleep-Associated Monitoring Index (SAMI) in Taiwanese haemodialysis patients. Design: An instrument translation and validation study. Setting: A haemodialysis (HD) unit in a university-affiliated medical centre in northern Taiwan. Participants: 206 patients who were 18 or above, diagnosed with end-stage renal disease and under maintenance HD twice or thrice a week, 3. h or more per session for more than 3 months. Methods: A principal component analysis was used to examine the construct validity of the SAMI. The participants were classified into poor (n= 160) and good sleepers (n= 46) using a cut-off value of 5 on the Pittsburgh Sleep Quality Index (PSQI). All participants filled out the Beck Depression Inventory (BDI) and Back Anxiety Inventory (BAI) along with the SAMI. Internal consistency was examined by the Cronbach's α. To assess test-retest reliability, the participants were asked to fill out the SAMI on a second occasion at a 2-week interval. Results: Eight subscales emerged from the principal component analysis. Individual with insomnia had significantly higher total SAMI scores (p<0.001). The SAMI total score significantly correlated to the PSQI, BDI, and BAI (r= 0.65, 0.67, 0.67; all p<0.001). Cronbach's α was 0.95 for the entire scale. The intra-class correlation coefficient between the initial and retest SAMI total score was 0.72 (p<0.001). The SAMI-Chinese demonstrated an area under the receiver operation characteristic curve of 0.771 (SE = 0.044; 95{\%} CI: 0.685-0.857; p<0.001) in detecting individuals with poor sleep. A cut-off value of 51 indicated a sensitivity of 0.86 and a specificity of 0.63 in distinguishing between poor and good sleepers. Conclusions: The SAMI-Chinese demonstrated excellent construct validity, contrast group validity, external validity, internal consistency, and satisfactory test-retest reliability. It also demonstrated satisfactory diagnostic ability for insomnia.",
keywords = "Haemodialysis, Reliability, Sensitivity, Sleep-associated monitoring index, Specificity, Validity",
author = "Chan, {Shu Fen} and Chen, {Tso Hsiao} and Liao, {Yuan Mei} and Chou, {Kuei Ru} and Tsai, {Pei Shan}",
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AU - Chan, Shu Fen

AU - Chen, Tso Hsiao

AU - Liao, Yuan Mei

AU - Chou, Kuei Ru

AU - Tsai, Pei Shan

PY - 2012/1

Y1 - 2012/1

N2 - Objective: To examine the psychometric properties of the Chinese version of the Sleep-Associated Monitoring Index (SAMI) in Taiwanese haemodialysis patients. Design: An instrument translation and validation study. Setting: A haemodialysis (HD) unit in a university-affiliated medical centre in northern Taiwan. Participants: 206 patients who were 18 or above, diagnosed with end-stage renal disease and under maintenance HD twice or thrice a week, 3. h or more per session for more than 3 months. Methods: A principal component analysis was used to examine the construct validity of the SAMI. The participants were classified into poor (n= 160) and good sleepers (n= 46) using a cut-off value of 5 on the Pittsburgh Sleep Quality Index (PSQI). All participants filled out the Beck Depression Inventory (BDI) and Back Anxiety Inventory (BAI) along with the SAMI. Internal consistency was examined by the Cronbach's α. To assess test-retest reliability, the participants were asked to fill out the SAMI on a second occasion at a 2-week interval. Results: Eight subscales emerged from the principal component analysis. Individual with insomnia had significantly higher total SAMI scores (p<0.001). The SAMI total score significantly correlated to the PSQI, BDI, and BAI (r= 0.65, 0.67, 0.67; all p<0.001). Cronbach's α was 0.95 for the entire scale. The intra-class correlation coefficient between the initial and retest SAMI total score was 0.72 (p<0.001). The SAMI-Chinese demonstrated an area under the receiver operation characteristic curve of 0.771 (SE = 0.044; 95% CI: 0.685-0.857; p<0.001) in detecting individuals with poor sleep. A cut-off value of 51 indicated a sensitivity of 0.86 and a specificity of 0.63 in distinguishing between poor and good sleepers. Conclusions: The SAMI-Chinese demonstrated excellent construct validity, contrast group validity, external validity, internal consistency, and satisfactory test-retest reliability. It also demonstrated satisfactory diagnostic ability for insomnia.

AB - Objective: To examine the psychometric properties of the Chinese version of the Sleep-Associated Monitoring Index (SAMI) in Taiwanese haemodialysis patients. Design: An instrument translation and validation study. Setting: A haemodialysis (HD) unit in a university-affiliated medical centre in northern Taiwan. Participants: 206 patients who were 18 or above, diagnosed with end-stage renal disease and under maintenance HD twice or thrice a week, 3. h or more per session for more than 3 months. Methods: A principal component analysis was used to examine the construct validity of the SAMI. The participants were classified into poor (n= 160) and good sleepers (n= 46) using a cut-off value of 5 on the Pittsburgh Sleep Quality Index (PSQI). All participants filled out the Beck Depression Inventory (BDI) and Back Anxiety Inventory (BAI) along with the SAMI. Internal consistency was examined by the Cronbach's α. To assess test-retest reliability, the participants were asked to fill out the SAMI on a second occasion at a 2-week interval. Results: Eight subscales emerged from the principal component analysis. Individual with insomnia had significantly higher total SAMI scores (p<0.001). The SAMI total score significantly correlated to the PSQI, BDI, and BAI (r= 0.65, 0.67, 0.67; all p<0.001). Cronbach's α was 0.95 for the entire scale. The intra-class correlation coefficient between the initial and retest SAMI total score was 0.72 (p<0.001). The SAMI-Chinese demonstrated an area under the receiver operation characteristic curve of 0.771 (SE = 0.044; 95% CI: 0.685-0.857; p<0.001) in detecting individuals with poor sleep. A cut-off value of 51 indicated a sensitivity of 0.86 and a specificity of 0.63 in distinguishing between poor and good sleepers. Conclusions: The SAMI-Chinese demonstrated excellent construct validity, contrast group validity, external validity, internal consistency, and satisfactory test-retest reliability. It also demonstrated satisfactory diagnostic ability for insomnia.

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KW - Reliability

KW - Sensitivity

KW - Sleep-associated monitoring index

KW - Specificity

KW - Validity

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