BMC Urology

Table 7 Summary of urodynamic measurements by visit and treatment

From: A double blind, placebo-controlled randomized comparative study on the efficacy of phytosterol-enriched and conventional saw palmetto oil in mitigating benign prostate hyperplasia and androgen deficiency

Residual urine volume (mL)
Visit	Observed value				Change from baseline
Visit	Intervention (VISPO) n = 33	Comparator (SPO) n = 33	Placebo n = 33	p-value**	Intervention (VISPO) n = 33	p-value*	Comparator (SPO) n = 33	p-value*	Placebo n = 33	p-value*	p-value**
Visit 1	112.55 ± 36.19	110.12 ± 34.71	114.17 ± 30.67	0.888⁽¹⁾	−12.76 ± 14.44^a	< 0.001	−1.88 ± 10.93^b	0.331	1.11 ± 13.89^b	0.649	< 0.001⁽¹⁾
Visit 3	99.79 ± 29.27	108.24 ± 33.22	115.28 ± 33.25	0.149⁽¹⁾	−12.76 ± 14.44^a	< 0.001	−1.88 ± 10.93^b	0.331	1.11 ± 13.89^b	0.649	< 0.001⁽¹⁾
Qmax (mL/s)
Visit	Observed value				Change from baseline
Visit	Intervention (VISPO) n = 33	Comparator (SPO) n = 33	Placebo n = 33	p-value**	Intervention (VISPO) n = 33	p-value*	Comparator (SPO) n = 33	p-value*	Placebo n = 33	p-value*	p-value**
Visit 1	11.85 ± 2.06	12.33 ± 1.61	12.27 ± 1.92	0.522⁽¹⁾	2.42 ± 2.61^a	< 0.001	0.48 ± 1.56^b	0.084	−0.64 ± 2.28^b	0.118	< 0.001⁽¹⁾
Visit 3	14.27 ± 2.54^a	12.82 ± 1.72^b	11.64 ± 1.41^c	< 0.001⁽²⁾	2.42 ± 2.61^a	< 0.001	0.48 ± 1.56^b	0.084	−0.64 ± 2.28^b	0.118	< 0.001⁽¹⁾

Data are presented as Mean ± SD; n = No of subjects
^a-b values within a row with different superscript letters differ (p < 0.05), as analysed by one-way ANOVA
*p values were compared within each group from baseline using paired t test
**p values were compared between groups
¹⁾P values were derived from ANOVA, and Scheffe test was used to post hoc test
²⁾P values were derived from Kruskal-Wallis test, and Dunnett T3 test was used to post hoc test

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