Table 2.
Repeated measures analysis results for gray matter by threshold.
| Threshold | Effect | β (SE) | t(df) | p-value | 95% CI for β |
|---|---|---|---|---|---|
| GRAY MATTER (GM) | |||||
| 0 | Intercept | 828.36 (18.71) | 44.28 (21.6) | <0.0001 | (789.92, 867.19) |
| Method (FSL = ref) | 156.13 (5.17) | 30.20 (61) | <0.0001 | (145.80, 166.47) | |
| Scan (Scan1 = ref) | −1.24 (5.17) | −0.24 (61) | 0.81 | (−11.58, 9.09) | |
| 0.5 | Intercept | 565.73 (13.10) | 43.19 (21.4) | <0.0001 | (538.53, 592.93) |
| Method (FSL = ref) | 147.04 (3.42) | 42.89 (61) | <0.0001 | (140.19, 153.90) | |
| Scan (Scan1 = ref) | −2.62 (3.42) | −0.77 (61) | 0.44 | (−9.47, 4.23) | |
| 0.8 | Intercept | 326.82 (10.09) | 32.40 (23.6) | <0.0001 | (305.98, 347.66) |
| Method (FSL = ref) | 299.86 (4.07) | 73.66 (61) | <0.0001 | (291.72, 308) | |
| Scan (Scan1 = ref) | −2.81 (4.07) | −0.69 (61) | 0.49 | (−10.96, 5.32) | |
| 0.95 | Intercept | 312.23 (8.63) | 36.20 (24.7) | <0.0001 | (294.45, 330.00) |
| Method (FSL = ref) | 195.89 (3.89) | 50.28 (61) | <0.0001 | (188.1, 203.68) | |
| Scan (Scan1 = ref) | −3.71 (3.89) | −0.95 (61) | 0.34 | (−11.50, 4.07) | |
β coefficient for the method represents the difference in mean estimates between SPM and FSL when scan is fixed; β0 from the model equation corresponds to intercept row, β1 corresponds to method row, β2 corresponds to scan row.