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. Author manuscript; available in PMC: 2015 Jan 16.

Published in final edited form as: J Urol. 2008 Sep 18;180(5):2076–2080. doi: 10.1016/j.juro.2008.07.027

Table 2.

Preoperative urodynamic results

	Voiding dysfunction			No voiding dysfunction			P value
	N	Mean or Median	SD or Min, Max	N	Mean or Median	SD or Min, Max
NIF PVR (ml)	7	10.0	0, 322	287	10.0	0, 275	0.65^*
NIF Qmax (ml/sec)	7	25.8	10.6	287	25.7	10.7	0.98
PFS Qmax (ml/sec)	8	22.3	9.8	297	20.3	9.2	0.55
Delta Pves (cm H₂O)	3	25.0	23.5	193	22.2	20.5	0.81
Delta Pabd (cm H₂O)	3	1.0	0, 11	192	0	−24, 91	0.59^*
Delta Pdet (cm H₂O)	3	21.0	17.4	192	16.2	11.6	0.48

	Voiding dysfunction	No voiding dysfunction	P value
	N	Mean or Median	SD or Min, Max	N	Mean or Median	SD or Min, Max
NIF PVR (ml)	47	10.0	0, 420	238	10.0	0, 220	0.59^*
NIF Qmax (ml/sec)	47	23.1	8.1	238	25.7	12.3	0.17
PFS Qmax (ml/sec)	46	21.1	9.0	260	22.6	10.9	0.39
Delta Pves (cm H₂O)	24	20.4	21.1	158	21.6	21.7	0.80
Delta Pabd (cm H₂O)	24	−2.0	−26, 62	158	0.0	−28, 100	0.43^*
Delta Pdet (cm H₂O)	24	16.4	10.3	158	14.7	12.0	0.51

^*

t Test if variable is normal

# rank sum test since the distribution is not normal and median (range) is reported