Table 1 Patient baseline characteristics, International Prostate Symptom Score (IPSS) and urodynamic parameters.

From: Significance of a decrease in the proportion of detrusor muscle to bladder wall for non-invasive diagnosis of detrusor underactivity in men with lower urinary tract symptoms

 

Total (n = 94)

DU (n = 24)

Non-DU (n = 70)

p

Baseline, median (IQR)

Age, yr

71 (66–75)

73 (70.5–75.5)

71 (66–74)

0.056

BMI, kg/m2

24.0 (22.8–25.4)

23.3 (22.3–24.9)

24.1 (22.9–25.5)

0.356

DM, n (%)

27 (28.7%)

10 (41.7%)

17 (24.3%)

0.247

HTN, n (%)

50 (53.2%)

14 (58.3%)

36 (51.4%)

0.550

CVA, n (%)

6 (6.4%)

2 (8.3%)

4 (5.7%)

0.742

PSA, ng/ml

3.50 (1.43–6.62)

3.31 (1.62–5.67)

3.56 (1.41–7.36)

0.352

TRUS, mL

48 (39–73)

43 (35–47)

55 (40–83)

0.297

Questionnaire

IPSS total

20 (12–29)

21 (11–25)

19 (12–29)

0.874

IPSS voiding

12 (6–17)

15 (6–17)

12 (7–17)

0.859

IPSS storage

8 (5–11)

7 (5–9)

8 (5–11)

0.488

OABSS

5 (4–8)

7 (4–9)

5 (4–8)

0.786

Urodynamics, mean ± SD

Free Qmax, mL/s

8.9 ± 4.2

8.3 ± 4.1

9.1 ± 4.3

0.522

Free VV, mL

161.3 ± 93.9

143.6 ± 106.0

166.8 ± 90.4

0.423

Free PVR, mL

88.3 ± 88.1

93.7 ± 81.1

86.6 ± 91.1

0.789

First desire to void, mL

175.9 ± 76.9

191.4 ± 84.3

170.8 ± 74.7

0.375

Normal desire to void, mL

254.9 ± 99.7

255.5 ± 78.4

254.8 ± 106.6

0.979

Strong desire to void, mL

333.6 ± 100.4

349.5 ± 81.4

328.3 ± 106.3

0.349

MCC, mL

336.2 ± 97.9

349.5 ± 81.4

331.8 ± 103.3

0.548

Compliance, mL/cmH2O

50.9 ± 36.5

48.1 ± 39.3

51.9 ± 35.9

0.728

IDC ( +), n (%)

66 (70.2%)

18 (75.0%)

48 (68.6%)

0.745

IDC terminal, n (%)

31 (33.0%)

10 (41.7%)

21 (30.0%)

0.527

PdetQmax, cmH2O

59.3 ± 26.6

35.8 ± 6.7

67.3 ± 26.2

 < 0.001

Opening Pressure, cmH2O

57.3 ± 33.3

34.2 ± 13.3

65.2 ± 34.5

 < 0.001

BOOI

44.9 ± 28.0

22.7 ± 6.3

52.8 ± 28.3

 < 0.001

BCI

92.3 ± 30.7

69.1 ± 21.0

100.1 ± 29.7

 < 0.001

BVE

62.2 ± 25.2

52.9 ± 29.5

65.4 ± 23.1

0.102

  1. DU detrusor underactivity, TRUS transrectal ultrasound, IPSS international prostate symptom score, OABSS overactive bladder symptom score, Qmax maximum flow rate, VV voided volume, PVR post-void residual, MCC maximum cystometric capacity, IDC involuntary detrusor contractions, PdetQmax detrusor pressure at Qmax, BOOI Bladder outlet obstruction index (PdetQmax − 2 × Qmax), BCI bladder contractility index (PdetQmax + 5 × Qmax), BVE bladder voiding efficiency (voided volume/total bladder capacity).