Skip to main content

Table 3 Comparison of evaluation indices in NP and non-NP patients

From: The evaluation of nocturia in patients with lower urinary tract symptoms suggestive of benign prostatic hyperplasia and the analysis of the curative effect after medical or placebo therapy for nocturia: a randomized placebo-controlled study

Variable

Median (mean ± SD)

 
 

NPi ≥0.33

NPi < 0.33

P value

Number of patients

113

35

 

Percentage (%)

76.50

23.50

 

Age (years)

69.6 ± 6.0

69.1 ± 4.0

0.746

LUTS duration (years)

5.8 ± 2.7

7.9 ± 4.0

0.043

24-h drinking volume (ml)

1931.9 ± 680.6

2206.5 ± 429.1

0.195

4-h before bedtime drinking volume (ml)

140.8 ± 135.8

132.9 ± 102.4

0.029

Nocturnal urine volume (ml)

922.4 ± 342.6

596.5 ± 168.2

0.003

Morning urine volume (ml)

278.3 ± 116.5

202.5 ± 55.0

0.004

Frequency of daytime urination

7.4 ± 2.2

10.6 ± 2.4

0.005

Bladder capacity index

0.8 ± 0.6

0.8 ± 0.6

0.963

Maximum urination volume (ml)

369.1 ± 126.0

299.4 ± 75.7

0.076

Prostate volume (ml)

41.9 ± 25.3

39.5 ± 24.8

0.198

Peak flow rate (ml/s)

13.2 ± 10.0

13.9 ± 9.9

0.12

Residual volume (ml)

21.8 ± 20.0

20.6 ± 18.7

0.087

Serum PSA (ng/ml)

4.7 ± 4.1

4.5 ± 4.0

0.102

  1. NPi nocturnal polyuria index