PMID- 26107270 OWN - NLM STAT- MEDLINE DCOM- 20151106 LR - 20191210 IS - 1526-9248 (Print) IS - 1526-9248 (Linking) VI - 25 IP - 2 DP - 2015 Jun TI - Development and initial evaluation of the psychometric properties of self-efficacy and adherence scales for patients with a left ventricular assist device. PG - 107-15 LID - 10.7182/pit2015597 [doi] AB - CONTEXT: No tools exist to measure patients' self-efficacy for and adherence to the complex home-care regimen after having a left ventricular device (LVAD) implanted. OBJECTIVE: To develop 2 new instruments, the LVAD Patient Self-Efficacy Scale (LPSES) and the LVAD Patient Home Management Adherence Scale (LPHMAS), and evaluate their psychometric properties. METHODS: This multistage instrumentation study recruited 102 patients (77.5% men and 22.5% women) aged 20 to 82 years, predominantly from the Midwest (34.3%) and the Northeast (26.5%) regions of the United States. Main indications for LVAD were bridge-to-transplant (69.6%) and destination therapy (21.6%), with mean implant duration of 19.9 (SD, 15.5) months. Study participants completed the following instruments: LPSES, LPHMAS, General Self-Efficacy Scale (GSES), Medical Outcomes Study General Adherence (MOSGA), and Self-Care Heart Failure Index (SCHFI) confidence and maintenance subscales. Item analyses, psychometric properties including factorial and convergent validities, and internal consistency reliability were tested. RESULTS: Factor analyses showed that the variances for the 20-item LPSES and 9-item LPHMAS were 60.2% and 53.6%, respectively. Convergent validity of the newly developed instruments was supported by the following correlations: LPSES and GSES (r = 0.34); LPSES and SCHFI-confidence (r = 0.60); LPHMAS and MOSGA (r = 0.33); LPHMAS and SCHFI-maintenance (r = 0.40). Internal consistency reliability coefficients were 0.94 (LPSES) and 0.84 (LPHMAS). Based on these data, the LPSES and LPHMAS are valid and reliable measures of self-efficacy and adherence specific for LVAD patients. Confirmatory testing is needed to further support the validity of these instruments for use in research and clinical practice. FAU - Casida, Jesus AU - Casida J AD - University of Michigan School of Nursing, Ann Arbor (JC, JC, AC), Goldfarb School of Nursing at Barnes-Jewish College, St Louis, Missouri (H-SW), Wayne State University College of Nursing, Detroit, Michigan (JH). FAU - Wu, Horng-Shiuann AU - Wu HS AD - University of Michigan School of Nursing, Ann Arbor (JC, JC, AC), Goldfarb School of Nursing at Barnes-Jewish College, St Louis, Missouri (H-SW), Wayne State University College of Nursing, Detroit, Michigan (JH). FAU - Harden, Janet AU - Harden J AD - University of Michigan School of Nursing, Ann Arbor (JC, JC, AC), Goldfarb School of Nursing at Barnes-Jewish College, St Louis, Missouri (H-SW), Wayne State University College of Nursing, Detroit, Michigan (JH). FAU - Chern, Joy AU - Chern J AD - University of Michigan School of Nursing, Ann Arbor (JC, JC, AC), Goldfarb School of Nursing at Barnes-Jewish College, St Louis, Missouri (H-SW), Wayne State University College of Nursing, Detroit, Michigan (JH). FAU - Carie, Austen AU - Carie A AD - University of Michigan School of Nursing, Ann Arbor (JC, JC, AC), Goldfarb School of Nursing at Barnes-Jewish College, St Louis, Missouri (H-SW), Wayne State University College of Nursing, Detroit, Michigan (JH). LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Validation Study PL - United States TA - Prog Transplant JT - Progress in transplantation (Aliso Viejo, Calif.) JID - 100909380 MH - Adult MH - Aged MH - Aged, 80 and over MH - Female MH - Heart Failure/*therapy MH - Heart Ventricles/*surgery MH - Heart-Assist Devices/*psychology MH - Humans MH - Male MH - Middle Aged MH - Patient Compliance/*psychology MH - Psychometrics/*instrumentation MH - Reproducibility of Results MH - Self Care/*psychology MH - *Self Efficacy MH - Surveys and Questionnaires MH - United States MH - Young Adult EDAT- 2015/06/25 06:00 MHDA- 2015/11/07 06:00 CRDT- 2015/06/25 06:00 PHST- 2015/06/25 06:00 [entrez] PHST- 2015/06/25 06:00 [pubmed] PHST- 2015/11/07 06:00 [medline] AID - 10.7182/pit2015597 [doi] PST - ppublish SO - Prog Transplant. 2015 Jun;25(2):107-15. doi: 10.7182/pit2015597.