Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA;
Int J Gen Med. 2012;5:775-80. doi: 10.2147/IJGM.S36028. Epub 2012 Sep 19.
We explored whether African-American (AA) primary care physicians (PCPs) have different prostate cancer screening practices compared to non-AA PCPs, after adjustment for potential confounding factors such as the proportion of AA patients in PCP practices.
We used SAS/SUDAAN to compare weighted responses from AA PCPs (n = 604) with those from non-AA PCPs (n = 647) in the 2007-2008 National Survey of Primary Care Physician Practices Regarding Prostate Cancer Screening. We used multivariate logistic regression to calculate the weighted odds ratios (OR) and 95% confidence intervals (CI).
We found that AA PCPs had higher odds of working in practices with above-the-median (≥ 21%) proportions of AA male patients (OR, 9.02; 95% CI: 5.85-13.91). A higher proportion of AA PCPs (53.5%; 95% CI: 49.5-57.4) reported an above-the-median proportion (≥ 91%) of PSA testing during health maintenance exams as compared to non-AA PCPs (39.4%; 95% CI: 35.5-43.4; P < 0.0002). After adjusting for the proportion of AA patients and other factors, we found that AA PCPs had higher odds of using PSA tests to screen men (OR, 1.74; 95% CI: 1.11-2.73).
This study quantifies the magnitude of the differences reported in previous focus group studies. Our results may be helpful in hypothesis generation and in planning future research studies.
在调整初级保健医师实践中非裔美国男性患者比例等潜在混杂因素后，我们探讨了非裔美国初级保健医师（PCP）与非非裔美国 PCP 相比，其前列腺癌筛查实践是否存在差异。
我们使用 SAS/SUDAAN 比较了 2007-2008 年全国初级保健医师前列腺癌筛查实践调查中，604 名非裔美国 PCP 和 647 名非非裔美国 PCP 的加权应答。我们使用多变量逻辑回归计算加权比值比（OR）和 95%置信区间（CI）。
我们发现，非裔美国 PCP 更有可能在非裔男性患者比例高于中位数（≥21%）的实践中工作（OR，9.02；95%CI：5.85-13.91）。与非非裔美国 PCP 相比，更多的非裔美国 PCP（53.5%；95%CI：49.5-57.4）报告在健康维护检查中进行 PSA 检测的比例高于中位数（≥91%）（39.4%；95%CI：35.5-43.4；P<0.0002）。在调整非裔患者比例和其他因素后，我们发现非裔美国 PCP 更有可能使用 PSA 检测筛查男性（OR，1.74；95%CI：1.11-2.73）。
本研究量化了先前焦点小组研究报告的差异的幅度。我们的结果可能有助于产生假说并规划未来的研究。
