Association of basal serum testosterone levels with ovarian response and in vitro fertilization outcome

Table 5 Multiple linear regression analysis of possible determinants for days of stimulation.

	Coefficients
	Unstandardized coefficients		Standardized coefficients
Independent variables	β	Std. Error	β	t	P value
(constant)	11.388	0.427		26.661	<0.001
Basal T levels (ng/dl)	-0.017	0.007	-0.170	-2.367	0.019
Antral follicle count	-0.054	0.028	-0.141	-1.964	0.051

Note: The dependent variable is days of stimulation. The model (r = 0.224, r² = 0.050, adjusted r² = 0.040, P = 0.009).
The values of the standardized coefficients reflect the independent contributions of each predictor to dependent variables.

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