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

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

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