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Distribution (n) of PSA levels across age categories
| PSA level categories | 30–40 years | 41–50 years | 51–60 years | 61–70 years | >71 years | Total |
|---|---|---|---|---|---|---|
| 0–2.5 ng/mL | 1,310 (98.3%) | 1,610 (97.5%) | 2,022 (91.5%) | 1,343 (85.5%) | 789 (75%) | 7,074 (90.5%) |
| >2.5–4 ng/mL | 22 (l.7%) | 38 (2.4%) | 156(7%) | 153 (9.7%) | 121 (11.5%) | 490 (6.3%) |
| >4 ng/mL | 0 | 2 (0.1%) | 32 (1.5%) | 75 (4.8%) | 141 (13.5%) | 250 (3.2%) |
| Total | 1,332 | 1,650 | 2,210 | 1,571 | 1,051 | 7,814 |
