Association between prodromal pain and the severity of acute herpes zoster and utilization of health care resources
Bibliographic record
Abstract
BACKGROUND: Herpes zoster results from the reactivation of the varicella-zoster virus, which is often accompanied by a prodrome of dermatomal pain. Little is known about the burden of prodromal pain. OBJECTIVES: (1) Describe the frequency, severity and duration of prodromal pain; (2) determine the relationship between prodromal pain and the characteristics of herpes zoster at recruitment and the utilization of health care resources. METHODS: Between 10/2005 and 07/2006, 251 subjects ≥ 50 years old, seeking care for herpes zoster within 14 days of rash onset, were recruited across Canada. Severity and duration of prodromal pain were measured retrospectively using the Initial Zoster Impact Questionnaire. The burden of prodromal pain was obtained by the product of pain severity and duration. The severity of acute herpes zoster pain was measured using the Zoster Brief Pain Inventory. RESULTS: The majority of participants reported prodromal pain (74%). Mean pain duration and severity were 4.7 days and 6/10, respectively. Subjects aged 61-70 years old were more likely to report prodromal pain (RR=1.14, p-value=0.02). The burden of prodromal pain was greater in subjects not working (p-value=0.02) or immunosuppressed (p-value=0.04). Prodromal pain was associated with more severe acute pain (6.2 vs. 4.3, p-value 0.0001). Compared to subjects who did not report prodromal pain, those with this pain were more likely to receive antivirals (RR=1.18, p-value=0.04) and to visit the emergency room (RR=2.56, p-value=0.04). CONCLUSION: The burden of prodromal pain is significant and should be considered when evaluating the overall benefit of herpes zoster vaccination.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".