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Table 2 Spearman correlation analysis of associations between basal T levels and the characteristics and COH parameters

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

  Group 1 Group 2
Variables r value P value r valuea P valuea r value P value r valueb P valueb
Age (years) -0.163 0.026 - - -0.151 <0.001 - -
BMI (kg/m2) -0.054 0.308 -0.009 0.907 -0.063 0.038 - -
Pregnancy history -0.031 0.669 0.013 0.859 -0.033 0.276 0.011 0.714
Basal FSH level (IU/L) -0.051 0.068 -0.032 0.664 0.028 0.361 0.033 0.281
Basal LH level (IU/L) 0.026 0.722 0.007 0.927 0.080 0.009 - -
Basal E2 level (pg/ml) 0.141 0.054 0.134 0.069 -0.044 0.150 -0.036 0.239
Antral follicle count 0.026 0.724 0.002 0.979 0.044 0.151 0.015 0.631
Starting dose of gonadotropins (IU) -0.088 0.434 -0.009 0.902 -0.124 <0.001 - -
Basal FSH/LH ratio -0.014 0.849 0.013 0.856 -0.056 0.065 0.006 0.839
Numbers of oocytes retrieved 0.115 0.117 0.063 0.394 0.064 0.037 0.009 0.766
Number of follicles >14 mm 0.191 0.009 0.147 0.047 0.013 0.679 -0.036 0.246
Days of stimulation -0.174 0.017 -0.177 0.016 -0.076 0.013 -0.066 0.031
Total dose of gonadotropins (IU) -0.203 0.005 -0.155 0.035 -0.139 <0.001 -0.081 0.008
Endometrial thickness on HCG day (cm) 0.120 0.102 0.093 0.211 -0.027 0.380 -0.041 0.177
Fertilization rate -0.010 0.893 -0.007 0.930 -0.007 0.828 0.003 0.922
Number of embryos cryopreserved 0.069 0.347 0.020 0.791 0.058 0.058 0.009 0.766
Number of good quality embryos 0.060 0.412 0.022 0.771 0.040 0.190 0.002 0.956
Live births -0.009 0.906 -0.022 0.765 -0.024 0.427 -0.023 0.452
  1. Note: a represent the r value and P value after adjusting for age that associated with basal testosterone levels.
  2. b represent the r value and P value after adjusting for age, basal LH level, BMI and starting dose of gonadotropins that associated with basal testosterone levels.
  3. Dichotomy variable pregnancy history was represented by secondary infertility = 1 and primary infertility = 0.