Comparison of Two Needle Sizes for Subcutaneous Administration of Enoxaparin: Effects on Size of Hematomas and Pain on Injection
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
STUDY OBJECTIVE: To determine whether use of a smaller needle size for subcutaneous injection of enoxaparin would reduce the size of injection-site hematomas and/or decrease the pain of injection. DESIGN: Prospective, randomized trial. SETTING: Community hospital in North Vancouver, British Columbia, Canada. PATIENTS: One hundred twenty-four patients with unstable angina or non-Q-wave myocardial infarction who were administered enoxaparin for anticoagulation. INTERVENTION: Each patient was randomly assigned to one of two groups. One group received enoxaparin injections with a 30-gauge, 5/16-inch insulin syringe, and the other group was injected with a 26-gauge, 3/8-inch tuberculin syringe. MEASUREMENTS AND MAIN RESULTS: Participating nurses used standard measuring tape to determine the largest diameter of each hematoma. Pain was assessed with a 10-unit numeric scale. The two groups did not differ significantly with regard to either the mean size of the largest hematoma/patient (4.2 cm in the insulin-syringe group vs 3.8 cm in the tuberculin-syringe group, p=0.68) or the mean pain score (0.3 in the insulin-syringe group vs 0.5 in the tuberculin-syringe group, p=0.10). CONCLUSIONS: Use of a 30-gauge, 5/16-inch insulin syringe instead of a 26-gauge, 3/8-inch tuberculin syringe does not significantly reduce either hematoma size or pain of injection. A larger study is required to determine whether needle size affects the frequency of hematoma formation.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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) | 0.000 | 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