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Improvements in work productivity among patients with inflammatory arthritis and osteoarthritis in the first six months after diagnosis: an inception cohort study


1, 2, 3, 4, 5, 6, 7, 8

 

  1. Department of Rheumatology and Immunology, Singapore General Hospital, and Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
  2. Department of Rheumatology and Immunology, Singapore General Hospital; Yong Loo Lin School of Medicine, National University of Singapore, and Duke-NUS Medical School, Singapore.
  3. Department of Rheumatology and Immunology, Singapore General Hospital; Yong Loo Lin School of Medicine, National University of Singapore, and Duke-NUS Medical School, Singapore.
  4. Department of Rheumatology and Immunology, Singapore General Hospital; Yong Loo Lin School of Medicine, National University of Singapore, and Duke-NUS Medical School, Singapore.
  5. Department of Occupational and Environmental Medicine, Singapore General Hospital, Singapore.
  6. Health Services and Systems Research, Duke-NUS Medical School, Singapore.
  7. Biostatistics, Singapore Clinical Research Institute, Singapore; Centre of Quantitative Medicine, Duke-NUS Medical School, Singapore; and Tampere Center for Child Health Research, Tampere University, Tampere, Finland.
  8. Department of Rheumatology and Immunology, Singapore General Hospital; Yong Loo Lin School of Medicine, National University of Singapore, and Duke-NUS Medical School, Singapore. julian.thumboo@singhealth.com.sg

CER15747
2023 Vol.41, N°5
PI 1042, PF 1049
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PMID: 36995328 [PubMed]

Received: 06/04/2022
Accepted : 21/07/2022
In Press: 16/03/2023
Published: 03/05/2023

Abstract

OBJECTIVES:
Reduced work productivity (WP), measured by work productivity loss (WPL) and work disability (WD), is common in patients with inflammatory arthritis (IA) and osteoarthritis (OA) but is not well characterised. We aimed to assess if there were any improvements in WP (WPL and WD) from diagnosis (T1) to six months later (T2) and to explore associations between WP at T2 and health status at T1 among these patients.
METHODS:
Patients were surveyed for work characteristics, work ability, WP and health status including physical functioning and vitality at T1 and T2. Associations between WP at T2 and health status at T1 were explored using regression models.
RESULTS:
Patients with IA (n=109) were younger than those with OA (n=70) (mean age: 50.5 vs. 57.7 years). The median WPL score decreased from 30.0 to 10.0 in patients with IA and from 20.0 to 0.0 in patients with OA, while the proportion reporting WD decreased from 52.3% to 45.3% in patients with IA and increased from 52.2% to 56.5% in patients with OA from T1 to T2. Physical functioning at T1 (coefficient = -0.35) was significantly associated with WPL at T2. Vitality at T1 (coefficient = 0.03) was associated with WD at T2.
CONCLUSIONS:
Greater improvements in WP were observed among patients with IA than those with OA in the first six months after diagnosis. This provides a basis for healthcare professionals to aim for greater improvements in work and health status for patients with IA.

DOI: https://doi.org/10.55563/clinexprheumatol/n25nd7

Rheumatology Article

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