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. 2017 Jul 12;15(3):260–266. doi: 10.1016/j.aju.2017.05.004

Table 2.

The incidence of bacteriuria in relation to preoperative variables of patients scheduled for TURP.

Preoperative variable Postoperative bacteriuria
Chi-squared test
Negative Positive χ2 P
Age, years <65, n (%) 24 (85.7) 4 (14.3) 7.96 0.005 HS
>65, n (%) 40 (55.6) 32 (44.4)



Presentation LUTS, n (%) 28 (70) 22 (30) 4.42 0.109
Haematuria, n (%) 11 (73.3) 4 (26.7)
Urine retention, n (%) 30 (75) 10 (25)



Prostatic size, g <60, n (%) 23 (82.1) 5 (17.9) 5.56 0.018 S
>60, n (%) 41 (56.9) 31 (43.1)



Free PSA, ng/mL Mean (SD) 0.85 (0.57) 1.04 (0.92) 1.28 0.325*
Range 0–2 0–2.91



Total PSA, ng/mL Mean (SD) 3.10 (1.75) 3.77 (2.19) 1.66 0.100*
Range 0–6.1 0–6.5



Preoperative urine analysis No pyuria, n (%) 39 (75.0) 13 (25.0) 5.69 0.017 S
Pyuria, n (%) 25 (52.1) 23 (47.9)



Preoperative urine culture No bacteriuria, n (%) 54 (79.4) 14 (20.6) 21.90 <0.001 HS
Bacteriuria, n (%) 10 (31.3) 22 (68.8)



Urea, mg/dL Mean (SD) 26.22 (7.05) 28.61 (8.93) 1.48 0.143*
Range 17–44 18–44



Creatinine, mg/dL Mean (SD) 1.23 (0.33) 1.31 (0.49) 1.09 0.439*
Range 0.7–1.9 0.7–2.6



Preoperative catheter No, n (%) 52 (72.2) 20 (27.8) 7.55 0.006 HS
Yes, n (%) 12 (42.9) 16 (57.1)



Catheter size, F Mean (SD) 18.33 (0.78) 18.75 (1.00) 1.20 0.243*
Range 18–20 18–20



Preoperative catheter duration, days Mean (SD) 13.17 (4.88) 10.25 (5.11) −1.52 0.139*
Range 5–20 3–21



Previous urological interventions No, n (%) 54 (73.0) 20 (27.0) 9.946 0.001 HS
Yes, n (%) 10 (38.5) 16 (61.5)



Past history of DM No, n (%) 52 (70.3) 22 (29.7) 4.86 0.028 S
Yes, n (%) 12 (46.2) 14 (53.8)



Past history of IHD No, n (%) 54 (64.3) 30 (35.7) 0.02 0.890
Yes, n (%) 10 (62.5) 6 (37.5)



Past history of HTN No, n (%) 56 (65.1) 30 (34.9) 0.33 0.564
Yes, n (%) 8 (57.1) 6 (42.9)



Past history of HCV No, n (%) 58 (65.9) 30 (34.1) 1.16 0.281
Yes, n (%) 6 (50.0) 6 (50.0)

IHD, ischaemic heart diseases; HTN, hypertension; HCV, hepatitis C virus; S, significant; HS, highly significant.

*

Independent t-test.