Severe Neck and Low Back Pain Predicts Severe Pain 5 Years Later in Older Men: A Cohort Study
Bibliographic record
Abstract
Henrik Damm,1 Björn E Rosengren,1 Lars Jehpsson,1 Claes Ohlsson,2,3 Eva L Ribom,4 Dan Mellström,5 Magnus K Karlsson1 1Orthopedics, Faculty of Medicine, Departments of Orthopaedics and Clinical Sciences, Lund University, Skåne University Hospital, Malmö, Sweden; 2Sahlgrenska Osteoporosis Centre, Center for Bone Research, Departments of Internal Medicine and Geriatrics, Gothenburg University, Sahlgrenska University Hospital, Gothenburg, Sweden; 3Department of Drug Treatment, Region Västra Götaland, Gothenburg University, Sahlgrenska University Hospital, Gothenburg, Sweden; 4Section of Orthopaedics, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden; 5Departments of Internal Medicine and Geriatrics, Gothenburg University, Sahlgrenska University Hospital, Gothenburg, SwedenCorrespondence: Henrik Damm, Department of Orthopaedics and Clinical Sciences, Lund University, Skåne University Hospital, Malmö, SE-205 02, Sweden, Tel +46 40331000, Email henrik.damm@med.lu.sePurpose: To describe the prevalence of neck pain (NP) and low back pain (LBP) of varying severity in older community-dwelling men, identify associated factors, and evaluate whether prevalent NP/LBP are risk factors for experiencing pain 5 years later.Patients and Methods: MrOS Sweden is a prospective observational study that included 3014 community-dwelling men aged 69– 81 years, of whom 1962 attended a 5-year follow-up. NP/LBP were assessed based on 1-year prevalence (yes/no), pain severity (none, mild, moderate, severe), and the presence of radicular pain with or without motor deficits (yes/no), at both baseline and follow-up.Results: At baseline, the 1-year prevalence for having either NP, LBP, or both was 55%. The 1-year prevalence for NP was 29% and for LBP 45%. Among men with NP, 18% reported severe pain, while 17% of men with LBP reported severe pain. Men with NP at baseline had a relative risk (RR) of 4.0 (95% CI: 3.4– 4.6) for reporting NP 5 years later, compared to men without NP at baseline. Men with severe NP had an RR of 10.7 (95% CI: 7.5– 15.1) for reporting severe NP 5 years later, compared to men without severe NP at baseline. The corresponding RRs for LBP were 2.8 (95% CI: 2.5– 3.1) and 6.5 (95% CI: 4.9– 8.6). Poor self-rated health and dizziness were associated with NP/LBP at both time points, while smoking was associated with lower risk of NP.Conclusion: More than half of community-dwelling men aged 69– 81 experience pain in the spinal region during a year (nearly one-third NP and just below half LBP). The majority experience only mild to moderate pain. Baseline pain, especially severe pain, strongly predicts pain 5 years later, and associated factors may help identify high-risk groups suitable for targeted interventions.Keywords: ageing, epidemiology, musculoskeletal pain, population-based, radiculopathy, motoric symptoms
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
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".