Randomized prospective study of a work place ergonomic intervention for individuals with rheumatoid arthritis and osteoarthritis
Bibliographic record
Abstract
OBJECTIVE: To conduct a longitudinal randomized controlled trial comparing a work place ergonomic intervention versus a control (i.e., provision of written educational materials) for persons with rheumatoid arthritis (RA) or osteoarthritis (OA) regarding employment, physical, and symptom outcomes. METHODS: Eighty-nine participants (mean age 50.54 years, 87% women, 38% with RA, 62% with OA) were randomized into the intervention or control group. Seventy-five participants completed baseline, 12-month, and 24-month evaluations. Outcome measures included Arthritis Impact Measurement Scales 2 (AIMS2) physical, symptom (i.e., pain), and role scores (i.e., impact of arthritis on employment); Job Satisfaction Survey (JSS); and Brief Symptom Inventory Global Severity Index. The study design was a 2-factor (treatment and time) with repeated measures on 1 factor (time) design used with baseline as a covariate for 12- and 24-month data. RESULTS: Between-group analyses indicated differences at 24 months for the AIMS2 role score (P < 0.03), with the intervention group reporting less arthritis-related impact on their work. Within-group analyses indicated significant improvements for the intervention group in AIMS2 change scores for physical functioning and symptom variables at 12 months (P < 0.04 and P < 0.01, respectively) and 24 months (P < 0.01 and P < 0.01, respectively). Job satisfaction (JSS) decreased at 12 months for both the intervention (P < 0.01) and control groups (P < 0.01), and at 24 months for the control group (P < 0.01). CONCLUSION: An ergonomic work place intervention (versus a control) is associated with decreased arthritis-related work difficulties over 2 years for individuals with OA and RA, as well as improvements in physical functioning and pain.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.007 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.002 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.011 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".