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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Neuroimage. 2012 Sep 14;64:671–684. doi: 10.1016/j.neuroimage.2012.09.004

Table 2. Effects of age and age2, both modeled together (Eq. 1) and just age (Eq. 2) on global connectivity metrics for the whole brain.

FDR corrected within model, with left and right hemisphere analyses FDR corrected separately from whole brain analyses.

Age and Age2 combined (Eq. 1)
Age Age2
Characteristic path length/Lambda −0.11 (0.0043) / −0.038 (0.0073) 0.050 (0.022) / 0.024 (0.033)
Mean clustering coefficient/Gamma ns / −0.38 (0.00018) ns / 0.18 (0.0018)
Global efficiency ns ns
Small-worldness −0.26 (0.00053) 0.13 (0.0034)
Modularity −0.077 (0.013) 0.044 (0.013)
Sex
Small-worldness 0.018 (0.011)
Gamma 0.022 (0.020)
Age (Eq. 2)
Age
Characteristic path length/Lambda −0.023 (1.0×10−6) / −0.011 (1.9×10−6)
Mean clustering coefficient/Gamma ns / −0.066 (8.0×10−8)
Global efficiency ns
Small-worldness −0.043 (3.1 ×10−6)
Modularity ns
Sex
Small-worldness 0.014 (0.034)