# Arthritis is associated with high nutritional risk among older Canadian adults from the Canadian Longitudinal Study on Aging

## TL;DR

Arthritis is linked to higher nutritional risk in older adults in Canada, regardless of whether they have functional impairments.

## Contribution

This study identifies a novel association between arthritis and increased nutritional risk in older adults using a large national dataset.

## Key findings

- People with arthritis had significantly lower nutritional risk scores compared to those without arthritis.
- Arthritis was associated with a 10-31% higher likelihood of high nutritional risk, depending on functional impairment status.
- The relationship between arthritis and nutritional risk varied by the type of arthritis.

## Abstract

This study assessed the association between arthritis, functional impairment, and nutritional risk (NR). Cross-sectional data were from the Canadian Longitudinal Study on Aging, a nationally representative sample of 45–85-year-old community-dwelling Canadians (n = 41,153). The abbreviated Seniors in the Community: Risk Evaluating for Eating and Nutrition II (SCREEN II-AB) Questionnaire determined NR scores (continuous), and high NR (score < 38); the Older American Resources and Services scale measured functional impairment. NR scores and status (low/high) were modelled using multiple linear and logistic regressions, respectively. Analyses adjusted for demographic characteristics, functional impairment, and health (body mass index, self-rated general and mental health). Additional analyses stratified the models by functional impairment. People with arthritis had poorer NR scores (B: − 0.35, CI − 0.48, − 0.22; p < 0.05) and increased risks of high NR (OR 1.11, 95% CI 1.06, 1.17). Among those with functional impairment, the likelihood of high NR was 31% higher in people with arthritis compared to those without arthritis (95% CI 1.12, 1.53). Among those with no functional impairment, the likelihood of high NR was 10% higher in people with arthritis compared to those without (95% CI 1.04, 1.16). These relationships differed based on the type of arthritis. Arthritis is associated with high NR in community-dwelling older adults, both with and without functional impairment. Findings highlight the need for further research on these relationships to inform interventions and improve clinical practices.