JCO:中年人的PSA水平能预测将来前列腺癌的死亡率

2016-06-27 Mechront 译 MedSci原创

根据一个嵌套的病例对照研究结果显示,中年男性PSA水平的升高,可能意味着患前列腺癌的风险增加了。布莱根妇女医院的Mark A. Preston博士说:“我们发现中年时测定的PSA水平,能很好的预测之后30年致命性前列腺癌的后续发展。”虽然PSA筛查能降低前列腺癌的死亡率,但也与过度诊断和过度治疗有关,并且好处和风险之间谁大谁小仍存在争议。研究人员使用了医师健康研究的数据,该数据中纳入了安慰剂对照试

根据一个嵌套的病例对照研究结果显示,中年男性PSA水平的升高,可能意味着患前列腺癌的风险增加了。

布莱根妇女医院的Mark A. Preston博士说:“我们发现中年时测定的PSA水平,能很好的预测之后30年致命性前列腺癌的后续发展。”

虽然PSA筛查能降低前列腺癌的死亡率,但也与过度诊断和过度治疗有关,并且好处和风险之间谁大谁小仍存在争议。

研究人员使用了医师健康研究的数据,该数据中纳入了安慰剂对照试验的22071中年男医生(40岁至59岁),从1982年开始研究。在这个试验中,234例前列腺癌和711例正常对照(1:3)有基线时PSA水平数据。

抽血时的平均年龄为55岁。从抽血到整体前列腺癌诊断的中位随访期为9年。

研究人员评估参与者根据年龄:40至49岁(癌症,N = 34;对照组,N = 104),50至54岁(癌症,N = 70;对照组,N = 202)和55至59岁(癌症,N = 130;对照组,N = 405)。

40至49岁组中位数PSA为0.68 ng/mL,50至54岁组为0.88 ng/mL,55至59岁组为0.96 ng/mL。

40至49岁组中PSA水平高于中位数的男性,前列腺癌风险显著增加(OR = 7.3; 95% CI, 2.4-21.8);50至54岁组风险也增加(OR = 7.6; 95% CI, 3.4-17.2);55至59岁组风险同样增加(OR = 10.1; 95% CI, 5.2-19.6)。研究人员指出,PSA高于第九十百分位的男性在不同年龄组的风险显著增加。

71例患者(癌症,60;对照,11)匹配213名对照组,同一年龄亚组分析:40至49年(N = 11;N = 31),50至54年(N = 17;N = 51)和55至59年(N = 43;N = 131)。从抽血到致死性前列腺癌的中位随访时间为8.6年。

PSA水平高于第九十百分位的男性其致死性前列腺癌风险显著更高:40到49岁组(OR = 8.7; 95% CI, 1-78.2)、50到54岁组(OR = 12.6; 95% CI, 1.4-110.4)、55到59岁组(OR = 6.9; 95% CI, 2.5-19.1)。

在所有致命的前列腺癌事件中,PSA在中位数之上的男性占40到49岁组死亡的82%,50到54岁组死亡的71%,55到59岁组死亡的86%。

PSA低于中位数的男性经历了更低的30年致命前列腺癌绝对风险(40-44, 0.19%; 45-49, 0.51%; 50-54, 1.62%; 55-59, 0.59%)。

“这些发现并不一定意味着具有较高的PSA水平基线的年轻人需要立即进行前列腺活检或治疗,”Preston和同事写道。“这些研究结果表明,,他们需要进行更为密集的PSA筛查,以更早的发现癌症,更早的进行治疗。”

原始出处:

Preston MA, et al. Baseline Prostate-Specific Antigen Levels in Midlife Predict Lethal Prostate Cancer.J Clin Oncol.2016;doi:10.1200/JCO.2016.66.7527.

PSA levels in midlife predict future prostate cancer mortality.Healio.June 24, 2016

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    2016-12-15 lidong40
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    2016-09-12 1e10c84am36(暂无匿称)

    文章不错

    0

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    2016-07-05 oo902

    学习了,很好的指标,简单易行

    0

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