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Table 2 Anterior-posterior model fit. Overall model chi-square (ChiSq) was always significant (P < 0.0001)

From: Sex differences in insular cortex gyri responses to a brief static handgrip challenge

Anterior vs. posterior

 

Gyrus, time

gyrus × time

Gyrus, time

Gyrus × time

Female left

Female right

Model

ChiSq (P < .0001)

424.31

472.4

−2 log-likelihood

−3139.6

−2111.2

Effects (P)

Gyrus

*<0.0001

*<0.0001

Time

*<0.0001

*<0.0001

Gyrus × time

*<0.0001

*<0.0001

 

Male left

Male right

Model

ChiSq (P < 0.0001)

1503.42

1086.15

−2 log-likelihood

367.1

−2072.2

Effects (P)

Gyrus

0.12

*0.0024

Time

*<0.0001

*<0.0001

Gyrus × time

*<0.0001

*<0.0001

  1. The model fit is indicated by −2 × log-likelihood as calculated by SAS (higher indicates better fit). The P values for each variable are shown (italics and asterisk indicate P ≤ 0.05). Gyrus × time interaction was significant (P < 0.05) in all cases. (See also Additional files 3 and 4 for models with age and age interaction effects)