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他汀类药物治疗依从性与事故风险分析的启示
Statin Adherence and Risk of Accidents: A Cautionary Tale
Dormuth CR, Patrick AR, Shrank WH  2010/1/28 17:10:06 
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Circulation, 2009,
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Background:
Bias in studies of preventive medications can occur when healthier patients are more likely to initiate and adhere to therapy than less healthy patients. We sought evidence of this bias by examining associations between statin exposure and various outcomes that should not be causally affected by statin exposure, such as workplace and motor vehicle accidents.

Methods and Results:
We conducted a prospective cohort study of statin patients using data from British Columbia, Canada, a multiethnic society with a population of 4.3 million people. Study subjects were 141 086 patients who initiated statins for primary prevention. We examined the association between adherence and multiple outcomes such as accidents and screening procedures using multivariable-adjusted Cox proportional hazards models. The study population was 49% female and had an average age of 61 years. The results from our multivariable-adjusted models showed that more adherent patients were less likely to have accidents than less adherent patients. This effect was greatest for motor vehicle accidents (hazard ratio, 0.75; 95% confidence interval, 0.72 to 0.79) and workplace accidents (hazard ratio, 0.77; 95% confidence interval, 0.74 to 0.81). More adherent patients had a greater likelihood of using screening services (hazard ratio, 1.17; 95% confidence interval, 1.15 to 1.20) and a lower likelihood of developing other diseases likely to be unrelated to a biological affect of a statin (hazard ratio, 0.87; 95% confidence interval, 0.86 to 0.89).

Conclusions:
Our study contributes compelling evidence that patients who adhere to statins are systematically more health seeking than comparable patients who do not remain adherent. Caution is warranted when interpreting analyses that attribute surprising protective effects to preventive medications.
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多饮、多尿、全身乏力、闭经1年，体重增加、肝区不适半年——长海医院病例

曹晶珠  邹大进

 

解放军第二军医大学附属长海医院内分泌科

 

患者为中年女性，35岁，因“多饮、多尿、全身乏力、闭经1年，体重增加、肝区不适半年”于2008年8月入院。患者2007年感冒后出现多饮、多尿，每日饮水约10,000 ml，未予重视及诊治。2007年出现闭经，在外院妇产科就诊，先后予2次黄体酮肌肉注射，仍未来月经。半年前体重增加25 kg，肝区不适，肝功能示转氨酶升高。患者无便秘腹胀、无皮肤感染、无双下肢水肿，活动后稍感胸闷、气喘，夜尿增多，平均每小时1次。最大体重88.7 kg。既往史无特殊。月经史：初潮14岁，4/28～30，2008年6月。

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