Influence of the quantity of sunscreen applied on the ability to protect against ultraviolet‐induced polymorphous light eruption
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND/PURPOSE: Despite the fact that most people apply less sunscreen than the 2 mg/cm(2) required to measure sun protection factor (SPF), there is a lack of clinical data on the protection afforded from lower applied quantities. The aim of this study was to compare the ability of sunscreens to protect against UV-induced polymorphous light eruption (PLE) when applied at 2 mg/cm(2) and 1 mg/cm(2) . METHODS: Two SPF 45 sunscreens (one with a high level and one with a low level of UVA protection) were applied at 2 mg/cm(2) and 1 mg/cm(2) to four randomized 6 × 6 cm areas on the upper thorax of 15 female patients with a typical history of PLE. The areas were exposed daily to increasing UVA-UVB radiation until a PLE reaction was detected or a maximum of five consecutive days. RESULTS: The proportion of patients who developed a PLE reaction with the high UVA-protection sunscreen was significantly lower (0%) than with the low UVA-protection sunscreen (73%) when both sunscreens were applied at 2 mg/cm(2) (P = 0.004). At 1 mg/cm(2) , 33% and 80% of patients presented a PLE reaction with the high and low UVA-protection sunscreen, respectively (P = 0.064). CONCLUSION: A high SPF and high UVA-protection broad spectrum sunscreen was able to protect the majority of patients from the development of UV-induced PLE reaction even at 1 mg/cm(2) .
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 it