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. 2022 Oct 13;12:1021615. doi: 10.3389/fonc.2022.1021615

Table 2.

Robust mixed-effects modelling of time and treatment effects on relative brain glucose metabolism.

Parameter ß (95% CI) pFDR
Frontal
cortex
Time -0.350 (-0.451, -0.249) 1.1E-09
Chemo regime 0.271 (-0.185, 0.727) 0.306
Time by Chemo regime 0.215 (0.008, 0.423) 0.110
EC only: Time -0.435 (-0.568, -0.302) 8.2E-09
FEC only: Time -0.220 (-0.38, -0.059) 0.013
Parietal
cortex
Time 0.273 (0.166, 0.38) 3.6E-06
Chemo regime -0.122 (-0.544, 0.299) 0.569
Time by Chemo regime 0.045 (-0.172, 0.261) 0.686
EC only: Time 0.256 (0.117, 0.395) 0.001
FEC only: Time 0.301 (0.134, 0.468) 0.001
Temporal
cortex
Time 0.076 (-0.074, 0.226) 0.320
Chemo regime 0.309 (-0.172, 0.79) 0.306
Time by Chemo regime 0.276 (-0.023, 0.575) 0.121
EC only: Time -0.031 (-0.224, 0.161) 0.751
FEC only: Time 0.244 (0.015, 0.474) 0.048
Occipital
cortex
Time 0.213 (0.007, 0.419) 0.056
Chemo regime -0.333 (-0.736, 0.071) 0.284
Time by Chemo regime -0.321 (-0.736, 0.093) 0.164
EC only: Time 0.348 (0.076, 0.62) 0.022
FEC only: Time 0.027 (-0.287, 0.341) 0.865
Insular
cortex
Time 0.180 (0.059, 0.3) 0.007
Chemo regime 0.381 (-0.089, 0.851) 0.284
Time by Chemo regime 0.387 (0.151, 0.622) 0.008
EC only: Time 0.036 (-0.115, 0.187) 0.751
FEC only: Time 0.423 (0.241, 0.604) 4.9E-05

n = 324 scans of 183 subjects. T0 and EC treatments were set as reference levels; therefore, chemotherapy regime effects represent FEC treatment versus EC, and time effects represent changes from T0 to T1. Models were corrected for age, type of scanner and years since chemotherapy (see Supplementary Materials). Standardized ß values are presented so that estimates can be interpreted as effect sizes and CI – confidence interval for ß. Benjamini-Hochberg-corrected p-values are presented for comparing the five regions of interest.

Bold values means significant effect at the 5% level.