Stressful Experiences in Childhood and Chronic Back Pain in the General Population
Bibliographic record
Abstract
OBJECTIVES: To determine if stressful experiences in childhood are associated with an increased risk of chronic back problems later in life. METHODS: We conducted a prospective cohort study in the Canadian household population. Study participants were respondents to the first 3 cycles of the National Population Health Survey in Canada who were 18 years of age or older at baseline (n = 9552). Cases of chronic back pain during a 4-year follow-up period were ascertained with an interviewer-administered questionnaire. Stressful experiences in childhood were measured by an index consisting of 7 questions. RESULTS: In multivariate analyses, the risk of back pain was 1.17 (95% confidence interval 0.97-1.41) for 1 stressful event and 1.49 (95% confidence interval 1.21-1.84) for 2 or more events. The effect was consistent across subgroups defined by gender, socioeconomic status, and health status. Specific events associated with an increased risk included fearful experiences, prolonged hospitalization, and parental unemployment. DISCUSSION: Our study shows that persons reporting multiple stressful experiences in childhood are at increased risk of developing chronic back problems.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.011 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".