IMPORTANCE:
Advance care planning improves the receipt of medical care aligned with patients’ values; yet, it remains sub-optimal among diverse patient populations. To mitigate literacy, cultural, and language barriers to advance care planning, we created easy-to-read advance directives and a patient-directed, online advance care planning program called PREPARE in English and Spanish.
OBJECTIVE:
To compare the efficacy of PREPARE plus an easy-to-read advance directive to an advance directive alone to increase advance care planning documentation and patient-reported engagement.
DESIGN:
Comparative efficacy randomized trial from February 2014 to November 2017.
SETTING:
Four San Francisco, safety-net, primary-care clinics.
PARTICIPANTS:
English- or Spanish-speaking primary care patients, age ≥55 years, with ≥2 chronic or serious illnesses.
INTERVENTIONS:
Participants were randomized to PREPARE plus an easy-to-read advance directive (PREPARE) or the advance directive alone. There were no clinician/system-level interventions. Staff were blinded for all follow-up measurements.
MAIN OUTCOMES AND MEASURES:
The primary outcome was new advance care planning documentation (i.e., legal forms and/or documented discussions) at 15 months. Patient-reported outcomes included advance care planning engagement at baseline, 1 week, and 3, 6, and 12-months using validated surveys. We used intention-to-treat, mixed-effects logistic and linear regression, controlling for time, health literacy and baseline advance care planning, clustering by physician, and stratifying by language.
RESULTS:
The mean (SD) age of 986 participants was 63.3 years (± 6.4), 39.7% had limited health literacy, and 45% were Spanish-speaking. No participant characteristic differed between arms; retention was 85.9%. Compared to the advance directive alone, PREPARE resulted in higher advance care planning documentation (adjusted 43% vs. 32%; p<0.001) and higher self-reported increased advance care planning engagement scores (98.1% vs. 89.5%; p<0.001). Results remained significant among English and Spanish-speakers.
CONCLUSIONS AND RELEVANCE:
The patient-facing PREPARE program and an easy-to-read advance directive, without clinician/system-level interventions, increased advance care planning documentation and patient-reported engagement, with statistically higher gains for PREPARE. These tools may mitigate literacy and language barriers to advance care planning, allow patients to begin planning on their own, and could substantially improve the process for diverse, English- and Spanish-speaking populations.