Shim et al.1 report in the January issue of Spinal Cord that the smaller prostate size in their entire spinal cord injury patient sample relative to controls reaches a probability of 0.07, a little short of the 0.05 level desired. If , however, only those with ‘severe’ injury—that is T10 or higher and ASIA Grade A, B or C—are compared, it is likely that a greater contrast with controls and a greater statistical difference will be found.2 This comparison has physiological meaning as T10 is the lowest level of sympathetic afferents to the hypothalamus and the neuroendocrine ramifications.3 It is possible that the smaller sample suggested has been obscured statistically by the broader sample used in the comparison.