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Body mass index and hand osteoarthritis susceptibility: an updated meta-analysis

PainSci » bibliography » Jiang et al 2016
Tags: etiology, arthritis, hand & wrist, inflam-sys, pro, aging, pain problems, arm, limbs

Four pages on PainSci cite Jiang 2016: 1. Bone on Bone2. Bone-on-bone, Part 2: Should we ever say it? (Member Post)3. How do you slow down the progression of arthritis?4. Preventing arthritis and tendinitis is easier than you think (with patience)

original abstract Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.

AIM: Numerous epidemiologic studies have evaluated the association between overweight and hand osteoarthritis; However, the existing results are inconsistent.

METHODS: Systematic searches were performed and reference lists from the retrieved trials were searched. This meta-analysis and meta-regression was executed to identify all English-language articles that quantitatively assess the strength of associations between body mass index and hand osteoarthritis risk. Study-specific incremental estimates were standardized to determine the risk associated with a 5 kg/m2 increase in body mass index. We conducted the study according to the guidelines for the meta-analysis of observational studies in epidemiology.

RESULTS: Of the 21 studies included, 13 were cross-sectional studies, three were case control studies and five were cohort studies. The pooled summary estimates were 1.10 (95%CI: 0.98-1.24) with no significant difference (P = 0.09). Subgroup analysis shows that body mass index was positively associated with hand osteoarthritis in cross-sectional studies (1.05 [95%CI: 1.02-1.08] P < 0.01), while with no significant difference was found in case-control studies (1.28 [95%CI: 0.87-1.88]) and in cohort studies (1.06 [95%CI: 0.71-1.58]) (P = 0.21 and P = 0.77, respectively). A weak but significant effect on radiographic hand osteoarthritis risk was found. The summary estimates were 1.06 (95%CI: 1.02-1.10) in studies defined by radiography and 1.25 (95%CI: 1.06-1.49) by radiography and clinically (P < 0 .01 and P = 0.01, respectively).

CONCLUSION: It appears that increased body mass index contributes to a positively moderate effect on susceptibility to hand osteoarthritis, as defined radiographically and/or radiographically and clinically. The effects vary by study design and osteoarthritis definition.

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