Relation between pelvic floor neurophysiological abnormalities and erectile dysfunction in patients with obstructed defecation

African Journal of Urology

Table 5 The results of logistic regression analysis predicting the development of erectile dysfunction from some selected assessed parameters among obstructed defecation patients (n = 65 patients)

Selected co-variables	β	Wald (X²)	Odd ratio	95% CI		P
Selected co-variables	β	Wald (X²)	Odd ratio	Lower	Upper	P
Age (years)	− 0.043	1.128	0.958	0.884	1.037	0.288
MODS	0.017	0.026	1.017	0.827	1.252	0.872
Time of toileting (minutes)	0.123	2.697	1.131	0.976	1.311	0.101
PAC-QoL	− 0.146	3.770	0.864	0.746	1.001	0.052
Maximum squeezing anal pressure (hPa)	0.017	0.485	1.017	0.970	1.065	0.486
Maximum straining anal pressure (hPa)	0.115	5.917	1.122	1.023	1.231	0.015*
Rt PNTML (ms)	1.323	4.459	3.755	1.100	12.822	0.035*
Lt PNTML (ms)	1.327	3.964	3.770	1.021	13.926	0.046*
X²^†	11.563
P‡	0.172

MODS, modified obstructed defecation score; PAC-QoL, Patient assessment of Constipation-Quality of life questionnaire; hPa, hectopascal (it is the unit of pressure and it is equal to 100 Pascals); Rt, right side; PNTML, pudendal nerve terminal motor latency; ms, millisecond; Lt, left side; β, logistic regression standardized coefficients; Wald (X²), Wald Chi-square test tests the unique contribution of each co-variable in relation to all other examined co-variables, through eliminating any overlap effect between them (i.e. when examining a co-variable, it holds all other co-variable constant); CI, confidence interval
*P is significant at < 0.05
^†Value of Chi-square Hosmer and Lemeshow test
^‡P value of the Hosmer and Lemeshow test