Table 3 Results of fitting GEE model, EAIC, and EBIC criteria for BIS outcome

Intercept

Propofol

Isoflurane

Ref

Ref

Ref

Ref

2.02 (3.83)

1.95 (3.74)

1.66 (4.38)

−0.81 (5.01)

Time

−0.64 (1.13)

−0.70 (1.16)

−0.64 (1.27)

−7.80 (2.39)

Interaction (Isoflurane × time)

−0.02 (0.71)

0.007 (0.73)

0.05 (0.80)

1.18 (1.49)

CEAIC

395.77

417.88

2067.91

2081.79

CEBIC

402.06

426.25

2076.29

2090.17

CIC

1.55

2.44

1.07

1.68

QIC

199,314.21

199,321.97

200,484.14

296,600.00