Table 6 Stratified analysis of patients with/without generalized anxiety disorder (GAD-7 ≥ 10). Estimated outcomes of mix linear model by intervention, time, and their interactions

GAD-7

AIC = 120.160, BIC = 135.126

AIC = 713.836, BIC = 748.516

Group IG to CG

0.001^*

-3.300(-4.955~-1.645)

0.326

-0.401(-1.207~0.406)

Time t0 to t2

< 0.001^*

4.600(3.631~5.569)

< 0.001^*

0.625(0.357~0.893)

Time t1 to t2

< 0.001^*

3.400(1.825~4.975)

< 0.001^*

0.900(0.552~1.248)

Interaction IG*t0

< 0.001^*

3.233(1.825~4.975)

0.201

0.247(-0.134~0.628)

Interaction IG*t1

0.221

1.267(-0.866~3.399)

0.601

-0.131(-0.626~0.364)

LSIZ

AIC = 143.952, BIC = 158.917

AIC = 959.202, BIC = 993.883

Group IG to CG

0.428

1.367(-2.190~4.923)

0.059

0.831(-0.332~1.696)

Time t0 to t2

0.858

0.200(-2.153~2.553)

< 0.001^*

-2.675(-3.348~-2.002)

Time t1 to t2

0.707

-0.400(-2.681~1.881)

< 0.001^*

-2.650(-3.296~-2.004)

Interaction IG*t0 to others

0.372

-1.367(-4.553~1.820)

0.054

-0.940(-1.898~0.170)

Interaction IG*t1 to others

0.871

0.233(-2.855~3.322)

0.068

0.855(-0.064~1.774)