Exposure-Response Relationship and Doubling Risk Doses-A Systematic Review of Occupational Workload and Osteoarthritis of the Hip

• Published in: International journal of environmental research and public health Vol. 16; no. 19; p. 3681
• Main Authors: Sun, Yi, Nold, Annette, Glitsch, Ulrich, Bochmann, Frank
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 30.09.2019; MDPI
• Subjects: Arthritis; Biomedical materials; Diagnostic systems; Disease; Epidemiology; Estimates; Etiology; Exposure; Humans; Libraries; Median (statistics); Meta-analysis; Normal distribution; Occupational exposure; Occupational Injuries; Osteoarthritis; Osteoarthritis, Hip - etiology; Physical workload; Population; Quality; Regression analysis; Review; Risk Factors; Spine; Statistical analysis; Statistical methods; Studies; Systematic review; Working conditions; Workload; Workloads; United States > US; doubling risk dose; exposure–response relationship; workload; dose–response relationship; coxarthrosis; systematic review; risk quantification; occupational risk; osteoarthritis of the hip
• ISSN: 1660-4601; 1661-7827; 1660-4601
• DOI: 10.3390/ijerph16193681

In this review, we critically evaluated the evidence of exposure-response relationships between occupational workload and the risk of hip osteoarthritis. The existing evidence was evaluated in order for us to extrapolate possible doubling risk doses for hip osteoarthritis. Comprehensive searches for epidemiological studies of hip osteoarthritis and occupational workload were performed in literature databases (PubMed, EMBASE, Cochrane Work and Google Scholar) and recent reviews up to February 2019. In total, 85 papers met the preliminary inclusion criteria, and 10 studies indicating an exposure-response relationship between occupational workload and hip osteoarthritis were identified. All studies were assessed on the basis of their study design, defined quality scores and relevant confounders considered. An exposure-response relationship between heavy lifting and the risk of hip osteoarthritis is consistently observed among the male populations but not among the female populations. We quantified the doubling risk doses in two studies in which both an exposure-response relationship and cumulative exposure doses were stated. These two studies provided the highest quality level of all studies published to date. The estimated doubling risk doses in these two studies lie between 14,761 and 18,550 tons (daily lifting 2.2-2.8 tons, 220 days/year for 30 years). These results can be used for workplace interventions to prevent hip osteoarthritis.