Bibliographic record
Abstract
目的 系统评价不同末端设计、材质、管径的PICC导管对并发症发生率的影响.方法 计算机检索Cochrane图书馆(2012年第3期)、JBI循证护理中心图书馆、MEDLINE、EMbase、中国生物医学文献数据库(CBM)、中国知网(CNKI)数据库(检索时限均从建库至2012年3月),辅以互联网络检索.收集所有讨论不同末端设计、材质、管径的PICC导管对并发症发生率影响的随机对照试验、半随机对照试验、病例对照研究、队列研究.由2名研究员按照纳入和排除标准筛选文献并提取资料,参考Cochrane Handbook及Newcastle-Ottawa Scale的质量评价标准进行质量评价,使用RevMan 5.1软件进行meta分析或仅进行描述性分析.结果 共纳入1项随机对照试验、3项半随机对照试验、1项病例对照研究、5项队列研究,共1996例患者.meta分析结果显示,末端开口导管的导管堵塞发生率较三向瓣膜导管高,合并效应有统计学意义[OR=0.36,95％CI(0.19,0.69),P=0.002].聚氨酯导管并发症发生率较硅胶导管高,合并效应有统计学意义[OR=0.24,95％CI(0.07,0.85),P=0.03].结论 三向瓣膜导管较末端开口导管在减少导管堵塞方面具有优势,使用聚氨酯导管时更应注意导管维护,以减少并发症发生,选择最小内径的导管可减少血栓性静脉炎的发生.
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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 | 0.032 | 0.140 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.005 |
| Bibliometrics | 0.011 | 0.011 |
| Science and technology studies | 0.003 | 0.004 |
| Scholarly communication | 0.014 | 0.012 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.003 | 0.005 |
| Insufficient payload (model declined to judge) | 0.019 | 0.004 |
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".