SOGC 临床实践指南：口服避孕药与静脉血栓栓塞风险：更新版：第 252 号，2010 年 12 月。
SOGC clinical practice guidelines: Oral contraceptives and the risk of venous thromboembolism: an update: no. 252, December 2010.
出版信息
Int J Gynaecol Obstet. 2011 Mar;112(3):252-6. doi: 10.1016/j.ijgo.2010.12.003.
OBJECTIVE
To provide current and emerging evidence on oral contraceptives and the risk of venous thromboembolism.
EVIDENCE
Articles published in English from 2005 were retrieved through searches of PubMed and Medline, using the following terms: venous thromboembolism, VTE, contraception, oral contraceptives, hormonal contraception. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. Searches were updated on a regular basis and incorporated in the guideline to May 2010. Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology assessment-related agencies, clinical practice guideline collections, clinical trial registries, and national and international medical specialty societies.
VALUES
The quality of evidence was rated using the criteria described by the Canadian Task Force on Preventive Health Care (Table).
目的
提供当前和新出现的有关口服避孕药与静脉血栓栓塞风险的证据。
证据
通过在 PubMed 和 Medline 中使用以下术语搜索 2005 年以来发表的英文文章：静脉血栓栓塞、VTE、避孕、口服避孕药、激素避孕。结果仅限于系统评价、随机对照试验/对照临床试验和观察性研究。定期更新搜索并将其纳入 2010 年 5 月的指南。通过搜索卫生技术评估和与卫生技术评估相关的机构的网站、临床实践指南集、临床试验注册处以及国家和国际医学专业协会，确定了灰色（未发表）文献。
价值观
使用加拿大预防保健工作组（表）描述的标准对证据质量进行评级。
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