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Table 1 Background of participants

From: A new nomogram of urinary flow rate and volume based on multiple measurements per healthy adult Japanese men using a portable uroflowmeter (P-Flowdiary®)

Age groups (years)

Number of participants

Frequency

Age (years), mean ± SD

Weight (kg), mean ± SD

BMI (kg/m2), mean ± SD

Maximum flow rate (mL/s), mean ± SD

Mean flow rate (mL/s), mean ± SD

Voided volume (mL), mean ± SD

IPSS, mean ± SD

QOL, mean ± SD

OABSS, mean ± SD

20–29

30

282

24.8 ± 2.5

62.9 ± 10.4

21.5 ± 2.8

20.5 ± 6.7

7.5 ± 3.6

203.9 ± 115.3

0.2 ± 0.4

0.1 ± 0.3

0.1 ± 0.3

30–39

25

183

34.5 ± 2.8

66.4 ± 10.8

22.6 ± 3.4

22.1 ± 7.6

7.9 ± 3.1

241.4 ± 122.2

0.28 ± 0.72

0.08 ± 0.27

0.16 ± 0.46

40–49

21

180

43.4 ± 2.9

70.9 ± 10.1

24.3 ± 3.6

22.9 ± 7.5

8.7 ± 3.8

285.4 ± 142.8

0.48 ± 0.79

0.14 ± 0.35

0.33 ± 0.64

50–59

25

249

55.0 ± 2.9

67.8 ± 11.2

22.4 ± 3.3

18.9 ± 6.6

7.5 ± 3.5

228.3 ± 135.4

0.8 ± 1.2

0.24 ± 0.65

0.44 ± 0.64

Total

101

894

38.5 ± 11.8

67.5 ± 11.8

22.8 ± 3.5

21.3 ± 6.9

8.1 ± 3.4

244.1 ± 129.1

0.42 ± 0.72

0.13 ± 0.31

0.24 ± 0.5

  1. IPSS, International Prostate Symptom Score; QOL, Quality of Life score; OABSS, Overactive Bladder Symptom Score; SD, standard deviation