HIV Postexposure Prophylaxis Starter Packs Were Not Designed to Help or Hinder Adherence
Bibliographic record
Abstract
To the Editor—It was concerning to read the conclusions of the systematic review by Ford and colleagues [1] promoting full 28-day starts of human immunodeficiency virus (HIV) postexposure prophylaxis (PEP) over traditional starter packs usually containing 1–7 days' worth of drugs dispensed at the initial medical visit, often within a busy emergency department (ED). The premise appears to be based on an analysis trying to suggest that starter packs do not promote adherence and may even undermine it [1]. The review also appears to be the justification for the formal opinion expressed in Section 4.6 of the recent World Health Organization (WHO) HIV PEP guidelines [2]. However, the premise is based on a flawed assumption regarding the primary purpose of starter packs. Starter packs are used to promote early access at multiple sites within a local healthcare system; to ensure continuity of care during follow-up; and to test the exposed client's tolerance and adherence without significantly wasting expensive HIV drugs. They were never designed to improve adherence, which is perhaps one reason why the authors were unable to find any published studies that directly tested their hypothesis.
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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 | 0.022 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.004 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.025 | 0.017 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
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".