Reliability and Validity of SymTrak, a Multi-Domain Tool for Monitoring Symptoms of Older Adults with Multiple Chronic Conditions.

BACKGROUND: A reliable and valid clinically practical multi-domain self-report and caregiver-report tool is needed for tracking actionable symptoms in primary care for elderly patients with multiple chronic conditions (MCCs). OBJECTIVE: Assess internal consistency reliability, test-retest reliability, construct validity, and sensitivity to change for SymTrak. DESIGN AND PARTICIPANTS: Among 600 (200 patient-caregiver dyads, 200 patients without an identified caregiver) participants, SymTrak was telephone interviewer-administered at baseline and 3-month follow-up, and at 24 h post-baseline for assessing test-retest reliability in a random subsample of 180 (60 dyads, 60 individual patients) participants. MAIN MEASURES: Demographic questions, SymTrak, Health Utility Index Mark 3 (HUI3). KEY RESULTS: Exploratory factor analysis indicated a single dominant dimension for SymTrak items for both patients and caregivers. Coefficient alpha and 24-h test-retest reliability, respectively, were high for the 23-item SymTrak total score for both patient-reported (0.85; 0.87) and caregiver-reported (0.86; 0.91) scores. Construct validity was supported by monotone decreasing relationships between the mean of SymTrak total scores across the poor-to-excellent categories of physical and emotional general health, and by high correlations with HUI3 overall utility score, even after adjusting for demographic covariates (standardized linear regression coefficient = - 0.84 for patients; - 0.70 for caregivers). Three-month change in the SymTrak total score was sensitive to detecting criterion standard 3-month reliable change categories (Improved, Stable, Declined) in HUI3-based health-related quality of life, especially for caregiver-reported scores. CONCLUSIONS: SymTrak demonstrates good internal consistency and test-retest reliability, construct validity, and sensitivity to change over a 3-month period, supporting its use for monitoring symptoms for older adults with MCCs.

Development and Feasibility of SymTrak, aMulti-domain Tool for Monitoring Symptoms of Older Adults in Primary Care.

BACKGROUND: A clinically practical, brief, user-friendly, multi-domain self-report and caregiver-report tool is needed for tracking actionable symptoms in primary care for elderly patients with multiple chronic conditions (MCCs). OBJECTIVE: Develop and assess usability, administration time, and internal reliability of SymTrak. DESIGN AND PARTICIPANTS: Phase I: legacy instruments, content validity, analyses of existing data, focus groups (physicians, nurses, patients, informal caregivers), and Think Aloud interviews (patients, caregivers) were used to develop SymTrak. Phase II (pilot feasibility study): 81 (27 patient-caregiver dyads, 27 patients without an identified caregiver) participants were self-administered SymTrak in clinic. MAIN MEASURES: SymTrak and demographic questions. KEY RESULTS: Consistent themes emerged from phase I focus groups. Ambiguous wording was corrected with Think Aloud feedback. In phase II, patients and caregivers preferred circling words instead of numbers for item response options. SymTrak self-administration completion time in clinic was brief; mean was 2.4, 3.0, and 3.3 min for the finalized circlingwords version, respectively, for caregivers, dyadic patients, and patients without a caregiver; and the maximum was 6.2 min for any participant. Usability questionnaire ratings were high. Cronbach's alpha for the SymTrak 23-item total score was 0.86, 0.79, and 0.81 for caregivers, dyadic patients, and patients without a caregiver, respectively. CONCLUSIONS: SymTrak demonstrates content validity, positive qualitative findings, high perceived usability, brief self-administered completion time, and good internal reliability.