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Table 3 Multiple linear regression analysis of possible determinants for number of follicles >14 mm in Group 1

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) 15.654 3.387   4.622 <0.001
Age (years) -0.151 0.074 -0.157 -2.027 0.044
BMI (kg/m2) -0.092 0.100 -0.066 -0.915 0.361
Basal T levels (ng/dl) 0.028 0.014 0.136 2.032 0.044
Basal FSH level (IU/L) -0.414 0.126 -0.227 -3.288 0.001
Basal LH level (IU/L) 0.330 0.134 0.175 2.459 0.015
Antral follicle count 0.150 0.054 0.186 2.777 0.006
Starting dose of gonadotropins (IU) -0.003 0.005 -0.047 -0.624 0.534
  1. Note: The dependent variable is number of follicles >14 mm. The model (r = 0.475, r2 = 0.225, adjusted r2 = 0.195, P < 0.001).
  2. The values of the standardized coefficients reflect the independent contributions of each predictor to dependent variables.