The association between FMI and leptin differed between groups, and was significantly stronger for Atrophy (103.6 % per kg/m2, p = 0.02 vs. Non-Lipo) and Controls (72.4 % per kg/m2, p < 0.001 vs. Non-Lipo) than for Non-Lipo (30.0 % per kg/m2). Here, LEP is linked to Atrophy.