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Table 2 PSA, PSA density and free/total PSA levels in Group B

From: Prostate-specific antigen increase after urethral catheterisation: fact or myth

Parameter Before catheterisation I day after catheterisation 3 days after catheterisation P value
PSA (ng/ml) 1.68 ± 0.39 1.84 ± 0.47 1.87 ± 0.48  > 0.05
Free/total PSA 26.15 ± 1.41 27.19 ± 4.10 27.07 ± 4.9  > 0.05
PSA density 0.040 ± 0.005 0.044 ± 0.005 0.46 ± 0.006  > 0.05