Reply to Letter by S-J Wang et al. Re: Griffiths et al. 2005. Comparison of invasive and non-invasive bladder pressure measurements by calculation of the bladder outlet obstruction index. Neurourol Urodynam 24:529–531

✍ Scribed by C.J. Griffiths; R.S. Pickard

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 49 KB
• Volume: 26
• Category: Article
• ISSN: 0733-2467
• DOI: 10.1002/nau.20344

✦ Synopsis

We thank Wang and colleagues for their continued interest in our work (ref J Urol 176: 411, 2006) but would refer them back to our previous reply regarding the development of the methodology and the previous published work comparing invasive and non-invasive pressure. The work described in the ICS conference abstract to which they now refer aimed to demonstrate that disagreement between invasive and noninvasive techniques can be accounted for by known sources of variability. It should be seen as an initial communication and we thank Wang and colleagues for suggesting further methods of data analysis. However by our understanding a paired t-test would not provide information additional to the Bland-Altman analysis.