Patch Is as Effective as Pill; Weekly Dosing Schedule May Improve Compliance
Bibliographic record
Abstract
A study in the US and Canada involving 1400 women indicated the contraceptive effectiveness of patch as comparable to that of combined oral contraceptive. The women were randomly assigned to either patch or oral contraceptive for 6 or 13 cycles and contraceptive efficacy was measured by calculating overall and method-related Pearl Indices and cumulative probabilities of pregnancy. Results noted no significant difference in womens experience with breakthrough bleeding with the 2 methods. Moreover the probabilities of pregnancy were similar among women who used the patch and those who used the pill (1-2% over 13 cycles). The types of adverse reactions were also noted to be similar between groups. Although Pearl Indices were numerically lower among users of patch than among women who used the pill differences were statistically insignificant. Furthermore contraceptive compliance was associated with contraceptive efficacy in which womens compliance with using the patch was significantly higher than that with using the pill.
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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 | 0.003 |
| 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) | 0.004 | 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".