Geriatrics-Focused vs Traditional Primary Care in the Veterans Affairs Health Care System

Older adults often require specialized health care expertise, but the effects of geriatrics-focused models of primary care have not been fully evaluated.

To compare the effects of geriatrics-focused primary care vs traditional primary care for older patients in the Veterans Affairs (VA) health care system.

In this cohort study, geriatrics-focused primary care and traditional primary care patient dyads matched on variables associated with geriatrics-focused primary care entry and outcomes were enrolled from VA medical centers with operational geriatrics-focused primary care clinics serving 500 or more patients annually in fiscal year 2016. Across 57 eligible sites, patients 65 years or older who transferred their care to geriatrics-focused primary care within the previous 12 months (exposure period) (n = 291) and their matched traditional primary care controls (n = 277) were enrolled. Study recruitment occurred from March 22, 2018, through December 11, 2019, with patient outcomes data collection completed June 24, 2021. Data were analyzed from June 2023 to January 2024.

At least 2 geriatrics-focused primary care visits during the exposure period. Geriatrics-focused primary care involves interprofessional teams of clinicians with geriatrics expertise to provide comprehensive primary care for older veterans with complex needs.

The primary outcome was home time (days not in a hospital unit, short-term nursing facility, inpatient rehabilitation, or an emergency visit) within 18 months of the exposure period. Secondary outcomes were completion of advance directives, assessments (falls, incontinence, and function), and medication quality (potentially inappropriate medications, Anticholinergic Drug Scale score). Patients were surveyed over 18 months about care experiences using Patient Perceptions of Integrated Care subscales, and Patient-Reported Outcomes Measurement System self-reported health and well-being measures.

A total of 568 patients were enrolled (mean [SD] age, 80.5 [7.0] years; 558 [98.2%] male), including 291 in the geriatrics-focused primary care and 277 matched in the traditional primary care groups; most baseline variables were comparable between the 2 groups. Geriatrics-focused primary care was not associated with more home time (rate ratio, 0.97; 95% CI, 0.62-1.51) over 18 months. Geriatrics-focused primary care was associated with higher odds of assessment for falls (odds ratio [OR], 2.86; 95% CI, 1.62-5.04), incontinence (OR, 2.73; 95% CI, 1.69-4.42), and function (OR, 4.05; 95% CI, 2.39-6.85) at 18 months. Geriatrics-focused primary care was not associated with advance directive completion, medication quality, or self-reported health and well-being.

In this cohort study, geriatrics-focused primary care did not increase time at home or other measures of self-reported health and well-being or integration of care within the first 18 months after care transition. However, increases in some process measures important for quality of care were observed, suggesting that further studies are needed to evaluate outcomes over a longer time frame.