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作 者:陈鑫[1] 刘明[1] 王建业[1] 朱玲[2] 万钢[3] 马兰军[2] 赵艳燕[2]
机构地区:[1]卫生部北京医院泌尿外科,100730 [2]卫生部北京医院体检中心,100730 [3]北京地坛医院统计师室
出 处:《中华健康管理学杂志》2012年第6期402-404,共3页Chinese Journal of Health Management
基 金:首都医学科学发展基金(2009-3019)
摘 要:目的研究体检人群不同年龄分层中的血清总前列腺特异性抗原(tPSA)水平分布情况以及不同tPSA水平的穿刺活检阳性率。方法2009年7月—2010年7月间在本院进行体检的患者8818例检测的tPSA值以及其中40名接受经直肠前列腺穿刺活检的患者的穿刺结果。用直线回归方法计算年龄同tPSA之间的关系,并用卡方检验的方法比较不同年龄组患者之间tPSA水平分布以及不同PSA水平患者之间穿刺活检阳性率的统计学差异。结果体检人群在tPSA〉4μg/L组的例数和比例在增加,40岁~组为1.4%,50岁~组为1.9%,60岁~组为9.2%,70岁一组为15.5%,〉80岁为17.0%。通过卡方检验得出不同年龄组之间tPSA〉4μg/L的患者比例的差异有统计学意义(P〈0.05)。通过直线回归分析发现,年龄与tPSA之间的直线相关性r为0.196。接受穿刺患者共40例,研究发现穿刺活检阳性率随tPSA升高增加,tPSA〉20μg/L组共6人,穿刺阳性率为83.3%(5/6),tPSA10—20μg/L组共10人,穿刺阳性率为50.0%(5/10),tPSA4~10斗∥L组阳性率为24.0%(6/25)。不同的年龄分层组之间的穿刺阳性率之间相比,差异也有统计学意义(P=0.048)。结论体检人群中tPSA水平同年龄呈正相关,但是没有明显的线性关系。随着年龄增加,tPSA在4μg/L以上的患者比例随之增加。随tPSA升高,经直肠前列腺穿刺活检率也升高。Objective To study serum level of prostate specific antigen (PSA) by age and its relationship with positive prostatic biopsy. Methods A total of 8818 aduhs who underwent PSA scanning at Health Chek-up Center of Beijing Hospital during July 2009 and July 2010 were retrospectively studied ,40 of whom performed prostatic biopsy. Linear regression was used to assess the relation of PSA with age, while Chi-square test was used to compare positive prostatic biopsy in different PSA groups. Results Serum PSA of more than 4μg/L was more commonly seen in the elderly group (40 year-old group 1.4% ,50 year- old group 1.9% ,60 - year-old group 9. 2% ,70 - year-old group 15.5%, 80 year-old group 17% ; P〈 0. 001 ; RR =0. 196). In those whose PSA was 〉20 μg/L,6 (83.3%) were found to have positive prostatic biopsy; and the figure was 10 (50.0%) or 24 (24.0%) when PSA was 〈4 μg/L or 4-10 μg/L group (P =0. 048 ). Conclusions Age was positively correlated with PSA, although no linear correlation was confirmed. Higher serum PSA level ( 〉 4 μg/L) may be more common in elderly people and those with a positive prostatic biopsy.
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