Table 1

Fluid intake and urine production at home assessed from a frequency volume chart (FVC) and during the in-patient studies (1. and 2. admission)



Mean ± SD




Registered days and nights
 Nocturia nights
 Fluid intake (ml/kg)
 24 h urine production (ml/kg)
 Day time urine production (ml/kg)
 Night time urine production (ml/kg)
 Day/night ratio
Home
 48
 2
 30.27 ± 6.19
 26.93 ± 6.00
 22.08 ± 7.74
 5.98 ± 1.00**
 3.98 ± 2.04
1. admission
 8
 1
 30
 38.42 ± 8.80
 31.28 ± 9.14
 7.14 ± 2.43***
 4.86 ± 2.43
2. admission
 8
 1
 30
 40.88 ± 6.09¶¶
 33.12 ± 8.83¶¶
 7.76 ± 5.42**
 5.92 ± 3.81

Values are mean ± SD. ** day/night p < 0.01, *** day/night p < 0.001, Home/in-patient p > 0.05, ¶¶ Home/in-patient p > 0.01

Graugaard-Jensen et al. BMC Urology 2008 8:16   doi:10.1186/1471-2490-8-16