Measuring Psychosocial Variables in Patients With (Sub) Acute Low Back Pain Complaints, at Risk for Chronicity
Bibliographic record
Abstract
STUDY DESIGN: A validation study of the Acute Low Back Pain Screening Questionnaire Dutch Language Version (ALBPSQ-DLV). OBJECTIVE: To determine internal consistency, construct and convergent validity of the ALBPSQ-DLV in a population of patients with (sub) acute low back pain (LBP) referred to primary care physical therapy in The Netherlands. SUMMARY OF BACKGROUND DATA: Viewing LBP as a multifactorial biopsychosocial syndrome enhances the need for validating instruments for screening psychosocial variables in patients with LBP. The ALBPSQ has been specifically constructed as a self-administered screening instrument, based on variables that have been suggested as a risk factor in the literature. METHODS: A total of 69 patients with (sub) acute LBP were recruited. Internal consistency of the ALBPSQ-DLV was determined by calculating Cronbach alpha. Construct validity was determined by applying exploratory factor analysis. Convergent validity was assessed by calculating Pearson's correlation coefficients between domains of ALBPSQ-DLV and Dutch language versions of the Fear Avoidance Beliefs Questionnaire, Tampa Scale for Kinesiophobia, Pain Coping Inventory, Quebec Back Pain Disability Scale, and the Visual Analogue Scale of pain intensity. RESULTS: Internal consistency of the ALBPSQ-DLV was 0.81. Values of the various subscales ranged between 0.48 and 0.88. Convergent validity was confirmed by moderate to good correlation coefficients (P = 0.01) between the scores on the subscales and the constructs of pain, disability, fear-avoidance beliefs, kinesiophobia, and coping (r = 0.38-0.64). Exploratory factor analysis, suppressing absolute values less than 0.40, revealed components which were in agreement with the various domains of the original ALBPSQ. CONCLUSION: The internal consistency and both construct and convergent validity of the ALBPSQ-DLV are well established in a Dutch population of 69 patients with (sub) acute nonspecific LBP referred to primary care physical therapy.
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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 | 0.004 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 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) | 0.001 | 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".