Mp91-08 Combination of Metabolic Syndrome Components to Predict Testosterone Deficiency in Men

Abstract

of T-dose). Stepwise multivariate Cox regression models revealed fundamental differences in inter-individual effects: hazard ratios for loss of BMI/WC were significantly higher in those subjects with younger age, lower baseline T and higher ratios of delta testosterone over delta estradiol levels induced by treatment (all p<0.01). Advanced age, higher baseline BMI and higher delta estradiol levels resulted in significantly higher hazard ratios for prostate growth/increase in PSA or hematocrit (all p<0.01). Overall, effects were attenuated, but still significant, in subjects with androgen receptor gene CAG repeat length >24, in those with KS or men with non-classical hypogonadism (using non-KS primary hypogonadism as referent, all p<0.05).CONCLUSIONS: Major new findings regarding effects and safety of T substitution in hypogonadal men are provided. This longterm registry on T substitution in hypogonadal men of a wide age-range demonstrates a decrement of weight, factors influencing cardiovascular health and a low, manageable amount of risk factors. Effects are modulated by diagnosis, age and genetic background.