The ACHRU-CPP versus usual care for older adults with type-2 diabetes and multiple chronic conditions and their family caregivers: study protocol for a randomized controlled trial

Table 2 Effectiveness outcomes, target population, and analysis

Effectiveness outcomes
Variable/outcome	Hypothesis	Measure	Group(s)^a	Method of analysis
Physical functioning	Improve more in the intervention group	Physical Component Summary (PCS-12) [58]	CT, CG	Means and standard deviations, t tests for comparing change from baseline (T ₁) to 6 months (T ₂) in the intervention and control groups ANCOVA analysis to explore predictors of primary outcome multiple regression with backward selection to explore impact of dose on primary outcome
Mental functioning	Improve more in the intervention group	Mental Component Summary (MCS) from SF-12 [61]	CT, CG
Depressive symptoms	Larger reduction in the intervention group	Center for Epidemiological Studies Depression Scale (CES-D-10) [62–65]	CT, CG
Anxiety	Larger reduction in the intervention group	Generalized Anxiety Disorder 7-item Scale (GAD-7) [66–70]	CT
Self-management	More improvement in the intervention group	Summary of Diabetes Self Care Activities (SDSCA) [71, 72]	CT
Self-efficacy	More improvement in the intervention group	Self-Efficacy for Managing Chronic Disease 6-item scale [52, 74–81]	CT
Caregiver strain	Larger reduction in the intervention group	Modified Caregiver Strain Index (CSI) – 13 items [73]	CG
Interprofessional team collaboration	Improvement in collaboration over 6 months in the intervention group	Team Climate Inventory (TCI) [82–84]	INT

Demographic data will be collected from all participant groups. All clients will be asked to provide their age, gender, education, and diabetes history (duration, family history). Clients and family caregivers will also be asked to provide household income, marital status, and comorbid health conditions. Caregivers will be asked to provide their employment status and ethnic back ground. Interventionists will be asked about the number of years working in their field and the number of years in their current role
^aThree groups: CT client, CG caregiver, INT interventionists (e.g., RN, RD, PC)

ISSN: 1745-6215