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1.
Diabetes Care ; 42(10): 1873-1878, 2019 10.
Article in English | MEDLINE | ID: mdl-31399439

ABSTRACT

OBJECTIVE: The Skills, Confidence, and Preparedness Index (SCPI) is an electronic tool designed to assess three dimensions (knowledge, confidence, and preparedness) in a clinically relevant measure with immediate feedback to guide the individualization of patient education. This study sought to assess the validity and reliability of the final SCPI generation, its relevance to glycemia, and its responsiveness to patient education. RESEARCH DESIGN AND METHODS: In Part 1, patients with type 1 and type 2 diabetes were recruited from specialist clinics over a 6-month period and completed the 23-item SCPI using a tablet. In Part 2, participants also underwent a diabetes self-management education (DSME) program. Baseline SCPI score was used to guide the DSME, and SCPI and glycemia were assessed at completion. RESULTS: In total, 423 patients met inclusion criteria and 405 had evaluable data. SCPI scores were found to have a high degree of validity, internal consistency, and test-retest reliability, with no floor or ceiling effects. Scoring was negatively correlated with HbA1c (type 1 diabetes: r = -0.26, P = 0.001; type 2 diabetes: r = -0.20, P = 0.004). In 51 participants who underwent a DSME intervention (6.4 ± 0.6 visits over a mean ± SD 3.4 ± 0.8 months), mean HbA1c improvement was 1.2 ± 0.2% (13.1 ± 2.2 mmol/mol, P < 0.0001). Total SCPI score and each subscore improved in parallel. CONCLUSIONS: The SCPI tool is a quick and easy-to-use measurement of three domains: skills, confidence, and preparedness. The instant scoring and feedback and its relationship to glycemic control should improve the efficiency and quality of individualizing care in the diabetes clinic.


Subject(s)
Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 2/psychology , Patient Education as Topic , Psychometrics/methods , Self-Management/psychology , Adult , Blood Glucose/analysis , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/therapy , Female , Glycated Hemoglobin/analysis , Health Behavior , Humans , Male , Middle Aged , Needs Assessment , Reproducibility of Results , Self Concept
2.
Diabetes Res Clin Pract ; 137: 128-136, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29097289

ABSTRACT

AIMS: The LMC Skills, Confidence & Preparedness Index (SCPI) is an electronic tool designed to meet ISOQOL standards and (a) assess three dimensions: knowledge, confidence and preparedness; (b) provide a clinically meaningful measure; (c) provide immediate feedback to the healthcare provider. Internal consistency and external validity have been previously reported in a refractory diabetes cohort. This larger evaluation, broader in glycemic control, sought to assess clinical relevance to glycemia. METHODS: Participants with type 1 and type 2 diabetes were recruited from LMC Diabetes and Endocrinology specialist clinics, from April to October 2016. Participants completed the SCPI using a tablet. Demographic and laboratory data were extracted from the LMC Diabetes Patient Registry. RESULTS: In total, 529 patients met inclusion criteria and were included in psychometric analyses; 518 patients with established diabetes (>6 months) were assessed for SCPI - glycemia correlations. SCPI scores were found to have a high degree of validity, internal consistency, and test-retest reliability. Most importantly, the tool showed good external validity in its relation to glycemic control, both in tertile analysis, demonstrating a threshold effect consistent with a 'moderate' degree of poor control; and in overall correlation with HbA1c for the total SCPI score and two subscales (Skills and Confidence). CONCLUSIONS: The SCPI tool is a quick (25 items), easy to use measure of three domains - knowledge, confidence and preparedness. The instant scoring and specific feedback, as well as the relationship to glycemic control should provide significant value in the patient assessment in the diabetes clinic.


Subject(s)
Diabetes Mellitus, Type 2/therapy , Glycemic Index/physiology , Needs Assessment/trends , Psychometrics/methods , Adult , Diabetes Mellitus, Type 2/pathology , Female , Humans , Male , Middle Aged , Self-Management , Surveys and Questionnaires
3.
Health Qual Life Outcomes ; 15(1): 27, 2017 Jan 31.
Article in English | MEDLINE | ID: mdl-28143548

ABSTRACT

BACKGROUND: Optimal diabetes care requires a specific set of self-management behaviours. The purpose of this study was to present the development and initial psychometric evaluation of a new tool to measure three key aspects of a patient's diabetes self-management: knowledge of the skill, confidence in being able to perform the skill and preparedness to implement the skill. METHODS: A sequential exploratory mixed-methods design was used. A panel of educators, researchers and clinicians established a scale with items that would adequately capture skills, confidence and preparedness in seven core health behaviours central to diabetes care. The psychometric properties of the items were pilot tested on 120 participants with diabetes from a tertiary referral centre, and repeated 6 months later on 70 participants. Item selection was informed by factor analysis, item-total statistics and the need for brevity. RESULTS: Twenty five items from a pool of 36 were retained, with an excellent overall intraclass correlation (ICC) of 0.94 (95% CI 0.92-0.99; p < 0.001). Internal consistency for the subscales (skills-9 items, confidence - 8 items, preparedness - 8 items) was very good (intraclass correlation between 0.83 and 0.88), and retest reliability after 6 months was also good (r = 0.48; p < 0.01). The scale was positively correlated to established scales that assess skill (Michigan Diabetes Knowledge Test) (r = 0.21;p = 0.01), and assess skill and confidence (Diabetes Empowerment Scale) (r = 0.28;p < 0.01). CONCLUSIONS: The Skills, Confidence & Preparedness Index is a brief and easy to administer new scale that is more comprehensive than existing tools. It should be used to assess self-management in patients with diabetes, optimize the resources applied to each patient, and determine educational needs and direct clinical management. The scale should be further evaluated in a broader population of patients with diabetes.


Subject(s)
Diabetes Mellitus, Type 2/psychology , Self Care , Surveys and Questionnaires , Factor Analysis, Statistical , Female , Health Behavior , Humans , Male , Middle Aged , Ontario , Psychometrics , Quality of Life , Reproducibility of Results
4.
Biol Reprod ; 77(2): 226-36, 2007 Aug.
Article in English | MEDLINE | ID: mdl-17392501

ABSTRACT

The hedgehog (HH) signaling pathway plays an essential role in the Drosophila ovary, regulating cell proliferation and differentiation, but a role in the mammalian ovary has not been defined. Expression of components of the HH pathway in the mouse ovary and effects of altering HH signaling in vitro were determined. RT-PCR analyses show developmentally regulated expression of sonic (Shh), indian (Ihh) and desert (Dhh) HH in the ovary. Expression is detected in whole ovary, granulosa cells, and corpora lutea. The mRNAs for the two receptors, patched homolog 1 and 2 (Ptch1, Ptch2), and the signal transducer, smoothened (Smo), are also expressed. Immunohistochemistry using an antibody that detects all three HH ligands demonstrated HH protein primarily in granulosa cells of follicles from primary to antral stages of development. Follicles also stained for PTCH1 and SMO in both granulosa and theca cells. Treatment of cultured preantral follicles and granulosa cells with recombinant SHH increased growth and proliferation while treatment with the HH pathway inhibitor, cyclopamine, had no effect. Therefore, activation of HH signaling can increase cell proliferation and follicle growth but is not essential for these processes in vitro. Treatment of granulosa cells with SHH increased levels of mRNA for Gli1, a transcriptional target of HH signaling, while cyclopamine decreased expression. SHH had no effect on production of progesterone by cultured granulosa cells, while cyclopamine increased progesterone production. The results demonstrate a functional HH pathway in the follicle and identify granulosa cells as at least one of the potential targets of HH signaling.


Subject(s)
Corpus Luteum/chemistry , Hedgehog Proteins/physiology , Ovary/metabolism , Signal Transduction/physiology , Animals , Cells, Cultured , Female , Gene Expression Regulation, Developmental , Granulosa Cells/chemistry , Granulosa Cells/cytology , Granulosa Cells/drug effects , Hedgehog Proteins/genetics , Hedgehog Proteins/pharmacokinetics , Immunohistochemistry , Mice , Ovarian Follicle/chemistry , Ovarian Follicle/drug effects , Ovarian Follicle/growth & development , Ovary/chemistry , Progesterone/biosynthesis , RNA, Messenger/analysis , Recombinant Proteins/pharmacology , Reverse Transcriptase Polymerase Chain Reaction
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