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. 2020 Jun 22;37(14):1609–1626. doi: 10.1089/neu.2019.6780

FIG. 5.

FIG. 5.

Mean traumatic brain injury (TBI) (n = 143) and control (n = 11) and testosterone (T) and luteinizing hormone (LH) levels stratified by persistent hypogonadotropic hypogonadism (PHH) status. Individuals in the TBI group were stratified by PHH status. (A)T levels are higher for controls versus all TBI and versus the TBI PHH group. Those without PHH (n = 92) had higher T versus those with PHH (n = 51). (B) Serum LH levels averaged 1–6 months post-injury for TBI (n = 143) versus controls (n = 10). Controls and non-PHH TBI groups (n = 92) had higher mean LH levels than men with PHH (n = 51). #Our clinical laboratory low-normal T reference level (10 nmol/L) is also graphed as is our clinical laboratory high normal for LH (5.6IU/L). (A, B) #p < 0.1, *p < 0.05, **p < 0.01, ***p < 0.001. Data are represented as bar graphs + standard error of mean.