. 2023 Nov 7;18(1):20–25. doi: 10.22074/IJFS.2023.560766.1355

Table 4.

Evaluation of the ability of pre and post-processing semen analysis parameters to predict pregnancy by stepwise logistic regression analysis


Variable out of the equation				Variable in the equation
Variable	P value	Variable	P value	Variable	P value	OR	95% CI		Variable	P value	OR	95% CI
Variable	P value	Variable	P value	Variable	P value	OR	Lower	Upper	Variable	P value	OR	Lower	Upper

Initial volume (ml)	0.692	Post volume (ml)	0.680	Initial volume (ml)	0.991	1.001	0.906	1.086	Post volume (ml)	0.063	0.055	0.003	1.132
Initial concentration (M/ml)^a	0.097	Post concentration(M/ml)^a	0.080	Initial concentration (M/ml)^a	0.008	1.014	1.004	1.024	Post concentration (M/ml)^a	0.065	1.01	0.999	1.021
Initial percent motile (%)	0.388	Post percent motile (%)	0.972	Initialpercent motile (%)	0.430	1.009	1.000	1.018	Post percent motile (%)	0.839	1.001	0.994	1.008
Initial concentration motile (M/ml)^a	0.154	Postconcentration motile(M/ml)^a	0.129	Initial concentration motile (M/ml)a	0.008	0.981	0.967	0.995	Post concentration motile(M/ml)^a	0.005	0.975	0.958	0.992
Initial total motile sperm count (M)^a	0.267	Post total motile sperm count (M)^a	0.069	Initial total motile sperm count (M)^a	0.653	1.001	0.998	1.003	Post total motile sperm count (M)^a	0.009	1.031	1.008	1.055
Initial progression (U/seconds)	0.180	Post progression (U/seconds)	0.460	Initial progression (U/seconds)	0.541	0.988	0.950	1.027	Post progression(u/sec)	0.190	1.016	0.992	1.039
Initial path Speed(U/seconds)	0.270	Post path speed(U/seconds)	0.823	Initial path speed (U/seconds)	0.212	0.99	0.974	1.006	Post path speed (U/seconds)	0.688	1.003	0.989	1.017

Using the variables out of the equation method, none of the variables are significant predictors of pregnancy. However, when the variable in the equation method was used several discriminators of pregnancy did occur. These included initial concentration and initial concentration motile, post-processing concentration motile, and post processing total motile sperm count. Pre-processing total motile sperm count was not a predictor of pregnancy in the variable in or out of the equation models. M; Million, OR; Odds ration, CI; Confidence interval, ^a; <0.05 statistically significant.