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Table 1 Female vs. male 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

Female vs. male

 

Sex, time

sex × time

Sex, time

sex × time

Left ASG

Right ASG

Model

ChiSq (P < 0.0001)

321.1

278.88

−2 log-likelihood

787.7

1447.1

Effects (P)

Sex

0.7762

*0.0091

Time

*<0.0001

*<0.0001

Sex × time

0.2109

*<0.0001

 

Left MSG

Right MSG

Model

ChiSq (P < 0.0001)

362.63

651.88

−2 log-likelihood

819.7

8158.7

Effects (P)

Sex

0.0565

*0.0077

Time

*<0.0001

*<0.0001

Sex × time

*0.0011

*<0.0001

 

Left PSG

Right PSG

Model

ChiSq (P < 0.0001)

497.95

655.47

−2 log-likelihood

680.7

772.3

Effects (P)

Sex

0.2902

*0.0087

Time

*<0.0001

*<0.0001

Sex × time

*0.0175

*<0.0001

 

Left ALG

Right ALG

Model

ChiSq (P < 0.0001)

417.84

590.7

−2 log-likelihood

895.1

493.8

Effects (P)

Sex

0.6822

0.0194

Time

* < 0.0001

*<0.0001

Sex × time

*0.0001

*<0.0001

 

Left PLG

Right PLG

Model

ChiSq (P < .0001)

489.86

343.97

−2 log-likelihood

1200.1

1108.5

Effects (P)

Sex

0.0611

*0.031

Time

*<0.0001

*<0.0001

Sex × 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). Sex × time interaction and time were significant (P < 0.05) in all cases. (See also Additional files 1 and 2 for models with age and age interaction effects)