If You Build It, Will They Come? Patient and Provider Use of a Novel Hybrid Telehealth Care Pathway for Low Back Pain

Cohort Profile: Baseline Characteristics of Veterans from Improving Veteran Access to Integrated Management of Back Pain (AIM-Back) - an Embedded Pragmatic, Cluster Randomized Trial in the United States

Purpose

AIM-Back is an embedded pragmatic clinical trial (ePCT) with cluster randomization designed to increase access and compare the effectiveness of two different non-pharmacological care pathways for low back pain (LBP) delivered within the Veteran Administration Health Care System (VAHCS). This manuscript describes baseline characteristics of AIM-Back participants as well as the representativeness of those referred to the AIM-Back program by sex, age, race, and ethnicity, relative to Veterans with low back pain at participating clinics.

Participants

To be eligible for AIM-Back, Veterans were referred to the randomized pathway at their clinic by trained primary care providers (Referral cohort). Veterans from the Referral cohort that participated in the study included: 1) an Electronic Health Record (EHR) sample of Veterans enrolled in the program (i.e., attended initial AIM-Back visit with no consent required) and a Survey sample of Veterans that were consented for further study. Descriptive statistics for age, race, ethnicity, sex, high-impact chronic pain (HICP), a comorbidity measure, post-traumatic stress diagnosis (PTSD) and opioid exposure were reported for the Referral cohort and by sample; mean baseline PROMIS pain interference, physical function and sleep disturbance scores were reported by sample. Additional measures of pain, mental health and social risk were reported on the Survey sample. Participation to prevalence ratios (PPRs) were calculated for sex, age, race, and ethnicity by clinic to describe representativeness of the Referral cohort.

Findings to Date

Across 17 randomized primary care clinics, the Referral cohort included 2767 unique Veterans with n=1817 in the EHR sample, n=996 in the Survey sample and n=799 of the EHR sample (44%) were also in the Survey sample. High rates of HICP were observed in the EHR and Survey samples (>59%). Mean scores (SD) based on self-reported PROMIS Pain Interference (63.2 (6.8), 63.1 (6.6)) and PROMIS Physical Function (37.1 (5.3), 38.1 (5.8)) indicated moderate impairment in the EHR sample and Survey sample respectively. Approximately 10% of the EHR sample had documented opioid use in the year leading up to the AIM-Back referral. At most clinics, older Veterans (>=65 years) were underrepresented in the Referral cohort compared to those with LBP visits at clinics (PPRs < 0.8).

Future Plans

The AIM-Back trial will conduct analysis to examine the comparative effectiveness of the two care pathways and identify individual characteristics that may improve responses to each pathway. The trial is expected to complete 12-month follow-up data collection by December 2024, with subsequent analyses and publications providing insights into optimizing non-pharmacological care for Veterans with LBP.

Trial Registration

NCT04411420 (clinicaltrials.gov).

The implementation of a pain navigator program in the department of Veterans Affairs' (VA) health care systems: a cluster randomized pragmatic clinical trial

OBJECTIVE

This manuscript describes the uptake of the AIM-Back Pain Navigator Pathway (PNP) designed to encourage use of non-pharmacologic care options within the Veterans Health Administration (VHA).

DESIGN

This manuscript describes the implementation of a telehealth intervention from one arm of a multisite, embedded, cluster-randomized pragmatic trial comparing the effectiveness of two novel clinical care pathways that provide access to non-pharmacologic care for Veterans with low back pain (LBP).

SETTING

Ten VHA clinics.

SUBJECTS

19 pain navigators, >200 primary care physicians, and over 1000 Veterans were involved in the PNP implementation.

METHODS

Data were generated within the VHA electronic health record (EHR) for the ongoing AIM-Back trial to describe PNP implementation for system-level findings in terms of number of visits, and type of care received.

RESULTS

Over a 3-year period, 9 of 10 clinics implemented the PNP within the context of the AIM-Back trial. The most frequent care recommended in the PNP included physical therapy, chiropractic, acupuncture, and yoga/tai chi. During follow-up at six-weeks, ∼50% of Veterans elected to receive a different care choice than what was initially prescribed. Notable variation across clinics was documented for PNP based on time to initiation of care and follow-up rates.

CONCLUSIONS

Implementation of the telehealth delivered PNP provides a nuanced understanding of the introduction of novel care programs within diverse clinical settings. These findings are most applicable to care programs that are delivered remotely and involve facilitation of existing care options.