Table 2. Univariate linear regression analysis for the percentage of change in TT.
Variable | Univariable | Multivariable | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
R2 | B | 95% CI for B | P value | B | 95% CI for B | P value | ||||
Lower bound | Upper bound | Lower bound | Upper bound | |||||||
Age in years (n=69) | 0.057 | −7.428 | −14.806 | −0.050 | 0.048 | – | – | – | – | |
BMI (n=68) | 0.009 | −1.962 | −7.142 | 3.219 | 0.452 | −1.940 | −7.024 | 3.144 | 0.449 | |
E pre-treatment (n=69) | 0.001 | −0.595 | −4.420 | 3.230 | 0.757 | 0.265 | −3.559 | 4.089 | 0.890 | |
FSH pre-treatment (n=62) | 0.068 | −8.362 | −16.373 | −0.352 | 0.041 | −5.989 | −14.499 | 2.521 | 0.164 | |
LH pre-treatment (n=51) | 0.096 | −20.672 | −38.861 | −2.484 | 0.027 | −19.931 | −38.108 | −1.755 | 0.032 |
R2 = coefficient of determination, B = unstandardized regression coefficient. Multivariable model adjusted by age. TT, total testosterone; BMI, body mass index; E, estradiol; FSH, follicle stimulating hormone; LH, luteinizing hormone.