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| Belgium | Sunaert et al. [9] | Implementation of a Program for Type 2 Diabetes Based on the Chronic Care Model in a Hospital-Centered Health Care System: “the Belgian Experience” | Longitudinal study |
| Sunaert et al. [10] | Effectiveness of the Introduction of Chronic Care Model-Based Program for Type 2 Diabetes in Belgium | Quasiexperimental study |
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| Cyprus | Samoutis et al. [19] | A Pilot Quality Improvement Intervention in Patients with Diabetes and Hypertension in Primary Care Settings of Cyprus | Control study |
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| Germany | Szecsenyi et al. [20] | German Diabetes Disease Management Programs Are Appropriate for Restructuring Care according to the Chronic Care Model: an Evaluation with the Patient Assessment of Chronic Illness Care Instrument | Written interviews |
| Petersen et al. [11] | Implementation of Chronic Illness Care in German Primary Care Practices—How Do Multimorbid Older Patients View Routine Care? A Cross-Sectional Study using Multilevel Hierarchical Modeling | Cross-sectional study |
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| Italy | Musacchio et al. [12] | Impact of a Chronic Care Model Based on Patient Empowerment on the Management of Type 2 Diabetes: Effects of the SINERGIA Programme | Longitudinal study |
| Profili et al. [13] | Changes in Diabetes Care Introduced by a Chronic Care Model-Based Programme in Tuscany: a 4-Year Cohort Study | Longitudinal study |
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| Netherlands | Ruikes et al. [21] | The CareWell-Primary Care Program: Design of a Cluster-Controlled Trial and Process Evaluation of a Complex Intervention Targeting Community-Dwelling Frail Elderly | Study protocol |
| Cramm and Nieboer [14] | The Chronic Care Model: Congruency and Predictors among Patients with Cardiovascular Diseases and Chronic Obstructive Pulmonary Disease in the Netherlands | Cross-sectional study |
| Muntinga et al. [24] | Implementing the Chronic Care Model for Frail Older Adults in the Netherlands: Study Protocol of ACT (Frail Older Adults: Care in Transition) | Study protocol |
| Spoorenberg et al. [22] | Embrace, a Model for Integrated Elderly Care: Study Protocol of a Randomized Controlled Trial on the Effectiveness regarding Patient Outcomes, Service Use, Costs, and Quality of Care | Study protocol |
| Cramm and Nieboer [15] | Short- and Long-Term Improvements in Quality of Chronic Care Delivery Predict Program Sustainability | Longitudinal study |
| Spoorenberg et al. [23] | Experiences of Community-Living Older Adults Receiving Integrated Care Based on the Chronic Care Model: a Qualitative Study | Interviews/surveys |
| Muntinga et al. [16] | From Concept to Content: Assessing the Implementation Fidelity of Chronic Care Model for Frail, Older people Who Live at Home | RCT |
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| Switzerland | Frei et al. [26] | The Chronic Care for Diabetes Study (CARAT): a Cluster Randomized Controlled Trial | Study protocol |
| Zuercher et al. [27] | Baseline Data of a Population-Based Cohort of Patients with Diabetes in Switzerland (CoDiab-VD) | Written interviews |
| Frei et al. [17] | Implementation of the Chronic Care Model in Small Medical Practices Improves Cardiovascular Risk but not Glycemic Control | RCT |
| Frei et al. [25] | Congruency of Diabetes Care with the Chronic Care Model in Different Swiss Health Care Organisations from the Patients’ Perspective: a Cross Sectional Study | Cross-sectional study |
| Chmiel et al. [18] | Four-Year Long-Term Follow-Up of Diabetes Patients after Implementation of the Chronic Care Model in Primary Care: a Cross-Sectional Study | Cross-sectional study |
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