Association between body mass index and pain outcomes in elderly patients with chronic pain: A retrospective cohort study.

Tamaki Aihara, Yusuke Nagamine, Masaki Kitahara, Takahisa Goto

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Article in Journal of anesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 authors.

Tamaki AiharaDepartment of Multidisciplinary Pain Management Clinic, Yokohama City University Medical Center, Yokohama, Japan. tmk.aihara.ycu.pain@gmail.com.

Yusuke NagamineDepartment of Anesthesiology and Critical Care Medicine, Yokohama City University Hospital, Yokohama, Japan.ORCID http://orcid.org/0000-0002-0443-5007

Masaki KitaharaDepartment of Multidisciplinary Pain Management Clinic, Yokohama City University Medical Center, Yokohama, Japan.

Takahisa GotoDepartment of Anesthesiology and Critical Care Medicine, Yokohama City University Hospital, Yokohama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to investigate the association between body mass index (BMI) and changes in pain scores among elderly patients with chronic pain. The pain disability assessment scale (PDAS) and the pain catastrophizing scale (PCS) were employed as assessment tools.

methodsA single-center, retrospective cohort study was conducted at a university hospital multidisciplinary pain center from 2017 to 2020, involving 180 patients aged ≥ 65 years with noncancer pain persisting for at least 3 months. Patients were classified into three groups according to BMI: low (BMI < 18.5), standard (18.5 ≤ BMI < 25), and high (BMI ≥ 25). Initial, 3-month, and 6-month PDAS and PCS scores were collected and analyzed using mixed-effects models.

resultsNo significant differences were observed in PDAS scores across BMI groups. However, PCS scores were significantly higher in the low BMI group. Furthermore, no significant differences were detected in PDAS and PCS scores based on the interaction between BMI group and time point (month).

conclusionAmong elderly patients with chronic pain, the low BMI group exhibited a significantly higher PCS score, while PDAS scores did not vary based on the BMI group. No differences were detected in treatment-related changes over time across BMI groups.

Indexed as

Body Mass IndexChronic PainAgedAged, 80 and overCatastrophizationDisability EvaluationFemaleHumansMalePain MeasurementRetrospective StudiesBody mass indexChronic painElderly patientPain catastrophizing scalePain disability assessment scale

Identifiers

PMID40664981

DOI10.1007/s00540-025-03546-2

PMCPMC12860826

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