Table 4. Summary of cortical thickness differences.

	Signed difference (%)		Coefficient of variation (%)a		Absolute difference (%)		ICCb
Comparison	Mean (sd)	Range	Mean (sd)	Range	Mean (sd)	Range	Mean (sd)	Range
HP vs. Mac (OSX 10.5.8)
v4.3.1	0.28 (0.48)	−0.56–2.02	2.04 (1.07)	0.70–5.27	1.58 (0.81)	0.53–3.96	0.956 (0.026)	0.895–0.995
v4.5.0	0.19 (0.62)	−1.87–2.24	2.02 (1.01)	0.81–5.64	1.56 (0.77)	0.61–3.77	0.956 (0.027)	0.885–0.992
v5.0.0	0.08 (0.34)	−0.89–0.93	1.89 (0.98)	0.70–5.44	1.45 (0.72)	0.55–4.14	0.958 (0.034)	0.804–0.994
Mac (OSX 10.5.8)
v4.3.1 vs. v4.5.0	−0.05 (0.32)	−1.18–1.01	1.61 (0.83)	0.64–4.11	1.06 (0.53)	0.37–2.89	0.974 (0.016)	0.928–0.995
v4.3.1 vs. v5.0.0	−1.05 (1.51)	−6.89–2.84	3.14 (1.40)	1.36–7.57	2.80 (1.35)	1.22–7.69	0.869 (0.084)	0.555–0.971
v4.5.0 vs. v5.0.0	−1.00 (1.58)	−6.83–3.03	3.13 (1.42)	1.27–9.28	2.80 (1.35)	1.19–7.35	0.872 (0.083)	0.593–0.974
HP
v4.3.1 vs. v4.5.0	0.04 (0.34)	−0.69–1.18	1.60 (0.88)	0.63–4.04	1.10 (0.60)	0.42–2.93	0.974 (0.017)	0.924–0.996
v4.3.1 vs. v5.0.0	−0.84 (1.27)	−5.17–2.68	3.21 (1.59)	1.23–10.39	2.69 (1.30)	1.10–7.07	0.870 (0.090)	0.569–0.978
v4.5.0 vs. v5.0.0	−0.88 (1.15)	−4.82–1.86	3.19 (1.48)	1.38–8.69	2.68 (1.21)	1.21–6.11	0.871 (0.086)	0.592–0.973
MacOSX10.6 vs. 10.5
v4.3.1	0.28 (0.68)	−1.58–3.34	2.25 (1.77)	0.60–10.85	1.56 (0.92)	0.47–4.49	0.948 (0.058)	0.670–0.998
v4.5.0	0.12 (0.57)	−1.35–2.91	2.17 (1.51)	0.62–9.58	1.58 (0.86)	0.50–4.80	0.952 (0.042)	0.756–0.994
v5.0.0	0.07 (0.39)	−0.82–1.23	1.82 (1.00)	0.61–4.64	1.37 (0.73)	0.46–3.59	0.960 (0.038)	0.816–0.996

^aCoefficient of variation is the standard deviation of the signed differences relative to the average of the two cortical thickness measurements.

^bICC is the intra-class correlation coefficient.