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Table 4 Comparison with published age-specific reference ranges

From: Relationship between serum prostate-specific antigen and transrectal prostate sonographic findings in asymptomatic Ugandan males

Age groups Age-specific serum PSA levels
Mulago/current study Suggested reference ranges Nigerians Indian men African American Japan
30–39 0.4–0.9 0.61–0.76
40–49 0.7–1 0.0–2.5 0–4.78 0.72–0.85 0–2.7 0.0–2.0
50–59 0.9–2 0.0–3.5 0–5.47 0.93–1.13 0–4.4 0.0–3.0
60–69 4–7 0.0–4.5 0–8.93 1.16–1.45 0–6.7 0.0–4.0
70 +  2–4 0.0–6.5 1.42–2.35 0–7.7 0.0–5.0