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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)
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