The GH/IGF-I Axis and Cognitive Changes across a 4-Year Period in Healthy Adults
Table 1
Mean mood and memory performance scores (±SD) for the low (; mean IGF-I = 13.8 nmol/L) and high (; mean IGF-I = 22.5 nmol/L) IGF-I groups. Higher scores for fatigue, mood total, and symbol-digit correspond to worse performance. Higher scores for the other tests correspond to better performance.