Document Detail


Validation of measures of satisfaction with and impact of continuous and conventional glucose monitoring.
MedLine Citation:
PMID:  20799388     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The evaluation of patient-reported outcomes (e.g. impact, satisfaction) is important in trials of continuous glucose monitoring (CGM). We evaluated psychometric properties of the CGM Satisfaction Scale (CGM-SAT) and the Glucose Monitoring Survey (GMS).
METHODS: CGM-SAT is a 44-item scale on which patients (n=224) or parents (n=102) rated their experience with CGM over the prior 6 months. GMS is a 22-item scale on which patients (n=447) or parents (n=221) rated the blood glucose monitoring system they were using (home glucose meter with or without CGM) at baseline and 6 months.
RESULTS: The alpha coefficient for the CGM-SAT was > or = 0.94 for all respondents and for the GMS was > or = 0.84 for all respondents at baseline and 6 months. Parent-youth agreement was 0.52 for the CGM-SAT at 6 months and 0.24 and 0.20 for the GMS at baseline and 6 months for the Standard Care Group, respectively. Test-retest reliability of the GMS at 6 months for controls was r=0.76 for adult patients, 0.63 for pediatric patients, and 0.43 for parents. Factor analysis isolated measurement factors for the CGM-SAT labeled Benefits of CGM and Hassles of CGM, accounting for 33% and 9% of score variance, respectively. For the GMS, two factors emerged: Glucose Control and Social Complications, accounting for 28% and 9% of variance, respectively. Significant correlations of CGM-SAT with frequency of CGM use between 6 months and baseline and GMS with frequency of conventional daily self-monitoring of blood glucose at baseline support their convergent validity.
CONCLUSIONS: The CGM-SAT and GMS are reliable and valid measures of patient-reported CGM outcomes.
Authors:
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Diabetes technology & therapeutics     Volume:  12     ISSN:  1557-8593     ISO Abbreviation:  Diabetes Technol. Ther.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-26     Completed Date:  2010-12-29     Revised Date:  2014-09-05    
Medline Journal Info:
Nlm Unique ID:  100889084     Medline TA:  Diabetes Technol Ther     Country:  United States    
Other Details:
Languages:  eng     Pagination:  679-84     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Blood Glucose / analysis*
Blood Glucose Self-Monitoring / methods*,  psychology,  standards
Child
Diabetes Mellitus, Type 1 / blood*,  drug therapy*,  psychology
Humans
Hypoglycemic Agents / administration & dosage*
Insulin / administration & dosage*
Longitudinal Studies
Parents
Patient Satisfaction*
Principal Component Analysis
Questionnaires
Reproducibility of Results
Young Adult
Grant Support
ID/Acronym/Agency:
K08 DK082386/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Hypoglycemic Agents; 0/Insulin
Investigator
Investigator/Affiliation:
Irl B Hirsch / ; Lisa K Gilliam / ; Kathy Fitzpatrick / ; Dori Khakpour / ; Stuart A Weinzimer / ; William V Tamborlane / ; Brett Ives / ; Joan Bosson-Heenan / ; Howard Wolpert / ; Greeshma Shetty / ; Astrid Atakov-Castillo / ; Judith Giusti / ; Stacey O'Donnell / ; Suzanne Ghiloni / ; Bruce W Bode / ; Kelli O'Neil / ; Lisa Tolbert / ; Tim Wysocki / ; Larry A Fox / ; Nelly Mauras / ; Kimberly Englert / ; Joe Permuy / ; Bruce Buckingham / ; Darrell M Wilson / ; Jennifer Block / ; Kari Benassi / ; Eva Tsalikian / ; Michael Tansey / ; Debra Kucera / ; Julie Coffey / ; Joanne Cabbage / ; Lori Laffel / ; Kerry Milaszewski / ; Katherine Pratt / ; Elise Bismuth / ; Joyce Keady / ; Margie Lawlor / ; H Peter Chase / ; Rosanna Fiallo-Scharer / ; Paul Wadwa / ; Laurel Messer / ; Victoria Gage / ; Patricia Burdick / ; Jean M Lawrence / ; Robert Clemons / ; Michelle Maeva / ; Bonnie Sattler / ; Roy W Beck / ; Katrina J Ruedy / ; Craig Kollman / ; Dongyuan Xing / ; Judy Sibayan / ; Michael Steffes / ; Jean M Bucksa / ; Maren L Nowicki / ; Carol Van Hale / ; Vicky Makky / ; Michael O'Grady / ; Elbert Huang / ; Anirban Basu / ; David O Meltzer / ; Lan Zhao / ; Joyce Lee / ; Aaron J Kowalski / ; Lori Laffel / ; William V Tamborlane / ; Roy W Beck / ; Aaron J Kowalski / ; Katrina J Ruedy / ; Ruth S Weinstock / ; Barbara J Anderson / ; Davida Kruger / ; Lisa LaVange / ; Henry Rodriguez / ; Tim Wysocki / ; Jing Cheng / ; Roy W Beck / ; Jennifer M Block / ; Craig Kollman / ; Lori Laffel / ; Jean M Lawrence / ; Joyce Lee / ; Katrina J Ruedy / ; William V Tamborlane / ; Howard Wolpert / ; Dongyuan Xing /
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