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Table 4 Diagnostic accuracy of PSA levels ≥ 4 ng/ml stratified by age

From: Prostate-specific antigen testing accuracy in community practice

Age Sensitivity (%) Specificity (%) LR + (95% CI) LR – (95% CI)
40 – 49 75 55 1.68 (1.17, 2.40) 0.45 (0.21, 0.95)
50 – 59 80 40 1.34 (1.19, 1.52) 0.49 (0.34, 0.71)
60 – 69 84 32 1.24 (1.16, 1.32) 0.50 (0.39, 0.64)
≥ 70 90 27 1.23 (1.16, 1.32) 0.37 (0.27, 0.51)
  1. Abbreviations: PSA = prostate-specific antigen. LR+ = likelihood ratio for a positive test. LR- = likelihood ratio for a negative test. CI = confidence interval.