Modifiable Prognostic Factors of High Costs Related to Healthcare Utilization Among Older People Seeking Primary Care Due to Back Pain: an Identification and Replication Study

Overview

Journal BMC Health Serv Res

Publisher Biomed Central

Specialty Health Services

Date 2022 Jun 18

PMID 35717179

Authors

Rikke Munk Killingmo

Alessandro Chiarotto

Danielle A van der Windt

Kjersti Storheim

Sita M A Bierma-Zeinstra

Milada C Smastuen

Zinajda Zolic-Karlsson

Orjan N Vigdal

Bart W Koes

Margreth Grotle

Affiliations

Soon will be listed here.

Abstract

Background: Back pain is an extensive burden to our healthcare system, yet few studies have explored modifiable prognostic factors associated with high costs related to healthcare utilization, especially among older back pain patients. The aims of this study were to identify modifiable prognostic factors for high costs related to healthcare utilization among older people seeking primary care with a new episode of back pain; and to replicate the identified associations in a similar cohort, in a different country.

Methods: Data from two cohort studies within the BACE consortium were used, including 452 and 675 people aged ≥55 years seeking primary care with a new episode of back pain. High costs were defined as costs in the top 25th percentile. Healthcare utilization was self-reported, aggregated for one-year of follow-up and included: primary care consultations, medications, examinations, hospitalization, rehabilitation stay and operations. Costs were estimated based on unit costs collected from national pricelists. Nine potential modifiable prognostic factors were selected based on previous literature. Univariable and multivariable binary logistic regression models were used to identify and replicate associations (crude and adjusted for selected covariates) between each modifiable prognostic factor and high costs related to healthcare utilization.

Results: Four modifiable prognostic factors associated with high costs related to healthcare utilization were identified and replicated: a higher degree of pain severity, disability, depression, and a lower degree of physical health-related quality of life. Kinesiophobia and recovery expectations showed no prognostic value. There were inconsistent results across the two cohorts with regards to comorbidity, radiating pain below the knee and mental health-related quality of life.

Conclusion: The factors identified in this study may be future targets for intervention with the potential to reduce high costs related to healthcare utilization among older back pain patients.

Trial Registration: ClinicalTrials.gov NCT04261309, 07 February 2020. Retrospectively registered.

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