Arianne K B van Reedt Dortland1, Lilian L Peters, Annette D Boenink, Jan H Smit, Joris P J Slaets, Adriaan W Hoogendoorn, Andreas Joos, Corine H M Latour, Friedrich Stiefel, Cyrille Burrus, Marie Guitteny-Collas, Silvia Ferrari. 1. From the Department of (Liaison) Psychiatry (van Reedt Dortland, Boenink, Smit, Hoogendoorn), VU University Medical Centre/GGZ inGeest, Amsterdam, The Netherlands; Department of Midwifery Science (Peters), AVAG EMGO+ Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands; Leyden Academy on Vitality and Ageing (Slaets), Leiden, The Netherlands; Department of Psychosomatic Medicine and Psychotherapy (Joos), UMC Freiburg, Germany; Amsterdam Centre for Innovative Health Practice (Latour), Faculty of Health, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands; Academic Medical Centre Amsterdam (Latour), The Netherlands; Service of Liaison Psychiatry (Stiefel), University and University Hospital Lausanne, Switzerland; Department of Musculoskeletal Rehabilitation (Burrus), Sion, Switzerland; Consultation-Liaison Psychiatry Unit (Guitteny-Collas), Department of Addictology and CL-Psychiatry, University Hospital of Nantes, France; and Department of Diagnostic-Clinical Medicine and Public Health (Ferrari), Section of Psychiatry, University of Modena and Reggio Emilia, Modena, Italy.
Abstract
OBJECTIVE: The INTERMED Self-Assessment questionnaire (IMSA) was developed as an alternative to the observer-rated INTERMED (IM) to assess biopsychosocial complexity and health care needs. We studied feasibility, reliability, and validity of the IMSA within a large and heterogeneous international sample of adult hospital inpatients and outpatients as well as its predictive value for health care use (HCU) and quality of life (QoL). METHODS: A total of 850 participants aged 17 to 90 years from five countries completed the IMSA and were evaluated with the IM. The following measurement properties were determined: feasibility by percentages of missing values; reliability by Cronbach α; interrater agreement by intraclass correlation coefficients; convergent validity of IMSA scores with mental health (Short Form 36 emotional well-being subscale and Hospital Anxiety and Depression Scale), medical health (Cumulative Illness Rating Scale) and QoL (Euroqol-5D) by Spearman rank correlations; and predictive validity of IMSA scores with HCU and QoL by (generalized) linear mixed models. RESULTS: Feasibility, face validity, and reliability (Cronbach α = 0.80) were satisfactory. Intraclass correlation coefficient between IMSA and IM total scores was .78 (95% CI = .75-.81). Correlations of the IMSA with the Short Form 36, Hospital Anxiety and Depression Scale, Cumulative Illness Rating Scale, and Euroqol-5D (convergent validity) were -.65, .15, .28, and -.59, respectively. The IMSA significantly predicted QoL and also HCU (emergency department visits, hospitalization, outpatient visits, and diagnostic examinations) after 3- and 6-month follow-up. Results were comparable between hospital sites, inpatients and outpatients, as well as age groups. CONCLUSIONS: The IMSA is a generic and time-efficient method to assess biopsychosocial complexity and to provide guidance for multidisciplinary care trajectories in adult patients, with good reliability and validity across different cultures.
OBJECTIVE: The INTERMED Self-Assessment questionnaire (IMSA) was developed as an alternative to the observer-rated INTERMED (IM) to assess biopsychosocial complexity and health care needs. We studied feasibility, reliability, and validity of the IMSA within a large and heterogeneous international sample of adult hospital inpatients and outpatients as well as its predictive value for health care use (HCU) and quality of life (QoL). METHODS: A total of 850 participants aged 17 to 90 years from five countries completed the IMSA and were evaluated with the IM. The following measurement properties were determined: feasibility by percentages of missing values; reliability by Cronbach α; interrater agreement by intraclass correlation coefficients; convergent validity of IMSA scores with mental health (Short Form 36 emotional well-being subscale and Hospital Anxiety and Depression Scale), medical health (Cumulative Illness Rating Scale) and QoL (Euroqol-5D) by Spearman rank correlations; and predictive validity of IMSA scores with HCU and QoL by (generalized) linear mixed models. RESULTS: Feasibility, face validity, and reliability (Cronbach α = 0.80) were satisfactory. Intraclass correlation coefficient between IMSA and IM total scores was .78 (95% CI = .75-.81). Correlations of the IMSA with the Short Form 36, Hospital Anxiety and Depression Scale, Cumulative Illness Rating Scale, and Euroqol-5D (convergent validity) were -.65, .15, .28, and -.59, respectively. The IMSA significantly predicted QoL and also HCU (emergency department visits, hospitalization, outpatient visits, and diagnostic examinations) after 3- and 6-month follow-up. Results were comparable between hospital sites, inpatients and outpatients, as well as age groups. CONCLUSIONS: The IMSA is a generic and time-efficient method to assess biopsychosocial complexity and to provide guidance for multidisciplinary care trajectories in adult patients, with good reliability and validity across different cultures.
Authors: Hong Phuoc Duong; Michel Konzelmann; Philippe Vuistiner; Cyrille Burrus; Bertrand Léger; Friedrich Stiefel; François Luthi Journal: J Pain Res Date: 2020-12-03 Impact factor: 3.133