The Need for SPACE to Plan the Future for Spondyloarthritis
Bibliographic record
Abstract
“Lifestyle Factors and Disease Activity Over Time in Early Axial Spondyloarthritis: The SPondyloArthritis Caught Early (SPACE) Cohort” by Exarchou et al aimed at looking at the importance of baseline lifestyle factors of BMI, smoking, and alcohol consumption (AC) on disease activity in recent-onset axial spondyloarthritis (axSpA).1 Does this study add to our knowledge of the natural history of axSpA? Does it help us design a potential intervention strategy that, in addition to pharmacologic management, could make a difference? We think it does, and here we explain our reasoning. First, was this cohort really axSpA as we know it in the clinic? The answer is a resounding yes. The patients in the SPACE cohort had chronic lower back pain of ≥ 3 months to ≤ 2 years in duration and were < 45 years of age.2 They had a probably of a definitive diagnosis of axSpA (≥ 6 on a 0–10 scale of confidence) by expert opinion at baseline in this multicenter, multinational study. Disease activity, defined by the Ankylosing Spondylitis Disease … Address correspondence to Dr. M.H. Weisman, Cedars-Sinai Medical Center, 8700 Beverly Bl, #B-131, Los Angeles, CA 90048, USA. Email: Michael.Weisman{at}cshs.org.
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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 | 0.009 | 0.030 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.004 | 0.012 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.006 | 0.016 |
| Insufficient payload (model declined to judge) | 0.010 | 0.004 |
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".