Tchir Devan, Farag Marwa, Szafron Michael
University of Saskatchewan, School of Public Health, Saskatoon, SK, Canada.
SPADE, Doha Institute for Graduate Studies, Doha, Qatar.
Can Urol Assoc J. 2020 Jul;14(7):E319-E327. doi: 10.5489/cuaj.6072.
The prostate-specific antigen (PSA) test is used in Canada to detect prostate cancer (PCa) despite mixed recommendations. Complications arising from false-positives are common, posing as a cancer-screening concern. This work estimates some Canadian rates of PSA screening and identifies men at increased odds for PSA screening.
The Canadian Community Health Survey (CCHS) from 2009/10 (Atlantic Canada; ATL), 2011/2012 (Ontario; ON), and 2013/2014 (Quebec; QC) were used. Lifetime and recent PSA screening with confidence intervals were constructed to estimate PSA screening in ATL, ON, and QC. Two logistic regression models (for men <50 and ≥50 years of age) were used to determine associations between factors and lifetime PSA screening.
PSA screening rates have increased in most age groups for ATL, ON, and QC since 2000/2001. Factors positively associated with lifetime PSA screening in men of all ages were: having a digital rectal exam, having a regular doctor, and having a colorectal exam. Fruit and vegetables consumption and non-smoking status were positively associated with lifetime PSA screening in men <50 years of age. High income and the presence of chronic health conditions were positively associated with lifetime PSA screening in men ≥50 years of age.
PSA screening rates have generally increased since 2000/2001 in Canada. Physician-related factors play a role in men at all ages, while different factors are associated in men <50 years of age and men ≥50 years of age. Limitations include the generalizability to all of Canada and the potential for recall bias.
尽管存在不同的建议,但加拿大仍使用前列腺特异性抗原(PSA)检测来筛查前列腺癌(PCa)。假阳性结果引发的并发症很常见,这成为癌症筛查领域的一个问题。本研究估算了加拿大一些地区的PSA筛查率,并确定了PSA筛查几率增加的男性群体。
使用了2009/10年(加拿大大西洋省份;ATL)、2011/2012年(安大略省;ON)和2013/2014年(魁北克省;QC)的加拿大社区健康调查(CCHS)数据。构建了有置信区间的终生和近期PSA筛查情况,以估算ATL、ON和QC地区的PSA筛查情况。使用两个逻辑回归模型(针对年龄<50岁和≥50岁的男性)来确定各因素与终生PSA筛查之间的关联。
自2000/2001年以来,ATL、ON和QC地区大多数年龄组的PSA筛查率都有所上升。与各年龄段男性终生PSA筛查呈正相关的因素有:接受直肠指检、有固定的医生、接受结肠直肠癌检查。水果和蔬菜摄入量以及不吸烟状态与年龄<50岁男性的终生PSA筛查呈正相关。高收入和患有慢性健康状况与年龄≥50岁男性的终生PSA筛查呈正相关。
自2000/2001年以来,加拿大的PSA筛查率总体呈上升趋势。与医生相关的因素在各年龄段男性中都发挥作用,而年龄<50岁和≥50岁的男性中存在不同的相关因素。局限性包括该结果对加拿大全国的普遍适用性以及存在回忆偏倚的可能性。