Table 4.

Sensitivity analysis for the association between the TyG index and all cause in-hospital mortality^a,b

Subgroup	MIMIC-IV			eICU-CRD
	HR(95% CI)	P value	P for interaction	HR(95% CI)	P value	P for interaction
All patients	1.63 (1.20,2.22)	0.002		1.27 (1.04,1.59)	0.038
Age			< 0.001			< 0.001
> 60 years	2.38 (1.38,4.46)	0.016		1.49 (1.13,1.86)	0.029
≤ 60 years	1.55 (0.88,2.41)	0.085		1.05 (0.70,1.58)	0.806
Diabetes			0.002			0.008
Yes	1.64 (0.86, 2.82)	0.374		1.06 (0.78, 1.52)	0.066
No	2.59 (1.06, 6.35)	0.005		1.48 (1.12, 2.66)	0.005
Hypertension			0.039			0.520
Yes	2.17 (1.36,3.46)	0.001		1.32 (1.03,1.86)	0.008
No	1.76 (0.92,3.36)	0.085		1.22 (0.90,1.65)	0.121

^aSensitivity analysis was conducted by the Cox proportional regression model

^bCox regression model was adjusted for age, gender, GCS, hypertension, congestive heart failure, WBC, serum creatinine, serum BUN, serum bilirubin, serum AST, PT, anticoagulant agents, and antiplatelet agents