SOLVED1568

A group of 12,684 men were included in a study of Prostate Specific Antigen (PSA) for prostate cancer screening, including 1,442 men age 50-59, 8,022 men age 60-69, and 3,220 men age 70-79. In this study, a PSA value of ≥ 4 ng/mL was used to indicate a positive test result and prostate biopsy was used as the gold standard. Their results are shown below: Age 50-59 Prostate Cancer and PSA ≥ 4 ng/mL 12 Prostate Cancer and PSA < 4 ng/mL 46 No Prostate Cancer and PSA ≥ 4 ng/mL 125 No Prostate Cancer and PSA <4 ng/mL 1259 Age 60-69 Prostate Cancer and PSA ≥ 4 ng/mL 135 Prostate Cancer and PSA < 4 ng/mL 507 No Prostate Cancer and PSA ≥ 4 ng/mL 664 No Prostate Cancer and PSA <4 ng/mL 6716 Age 70-79 Prostate Cancer and PSA ≥ 4 ng/mL 95 Prostate Cancer and PSA < 4 ng/mL 356 No Prostate Cancer and PSA ≥ 4 ng/mL 249 No Prostate Cancer and PSA <4 ng/mL 2520 a. What is the prevalence of prostate cancer in each age group, based on the gold standard? SCIENCE HEALTH SCIENCE NURSING

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