Self-Determination Theory and Motivational Interviewing

Study Overview
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Brief Summary
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Self-Determination Theory and motivational interviewing would be integrated to enhance the efficacy of diabetic self-management for patients with schizophrenia and Type 2 Diabetes.

Detailed Description
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Participants would be randomly allocated into either the intervention group or the usual care group from baseline to 3 months follow-up. The intervention is based on integrated self-determination theory and motivational interviewing.

Official Title
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Developing and Testing of Integrating Self-Determination Theory and Motivational Interviewing Based Diabetic Self-management Program Among Schizophrenic Patients With Diabetes

Conditions
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Schizophrenia, Diabetes

Intervention / Treatment
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* Behavioral: Interviewing


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients with schizophrenia and Type 2 Diabetes between 20 years old to 80 years old can communicate in Chinese langue Exclusion Criteria: can not communicate well have neurocognitive disorders

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Supportive Care
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Experimental group<br>The researcher interviews with participants for 3 times. | Behavioral: Interviewing<br>* Self-Determination Theory within motivational interviewing<br>|
| No Intervention: Control group<br>The participants receive usual care. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| HbA1C | Blood sugar level during the 3 months | on interviewing day1, and 3 months | 
| Body weight | weight (in kilograms) | on interviewing day1, and 3 months | 
| height | height (in meters), eight and height will be combined to report BMI in kg/m^2 | on interviewing day1, and 3 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Brief Psychiatric Rating Scale | The Brief Psychiatric Rating Scale with 18 items is use to measure psychiatric symptoms. Each symptom is rated 1-7 with higher scores indicating severer symptoms. | on interviewing day1, and 3 months | 
| Treatment Self-Regulation Questionnaire-Diabetes | The treatment Self-Regulation Questionnaire-Diabetes a 19-item scale used to examine the self-regulation behaviors for diabetes of participants. Each item is ranged from 1 to 7 and higher scores showing more motivations in self-regulation diabetes. | on interviewing day1, and 3 months | 
| Perceived Diabetes Self-Management Scale | The Perceived Diabetes Self-Management Scale is an 8-item scale with 4 of the items (1, 2, 6, & 7) being reverse-scored. Each item is ranged from 1 to 5 and higher scores showing more confidence in self-managing diabetes. | on interviewing day1, and 3 months | 
| Depression Anxiety Stress Scales | The Depression Anxiety Stress Scales is a self-report scale with 21 items designed to assess depression, stress and anxiety of participants. Scores for each symptom is ranged from 0 to 3 with higher scores indicating severer symptoms. | on interviewing day1, and 3 months |