Table 2.
Multivariate Cox regression analysis of the TyG index and all-cause and CVD mortality.
| No. deaths (%) | Crude | Model 1 | Model 2 | Model 3 | |
|---|---|---|---|---|---|
| HR (95% CI), p value | HR (95% CI), p value | HR (95% CI), p value | HR (95% CI), p value | ||
| All-cause mortality | |||||
| TyG index | |||||
| ≤ 8.72 | 203 (26.92) | 1 (Ref) | 1 (Ref) | 1 (Ref) | 1 (Ref) |
| 8.72–9.15 | 186 (25.14) | 0.77 (0.63, 0.94), 0.011 | 0.76 (0.62, 0.93), 0.007 | 0.79 (0.65, 0.97), 0.022 | 0.80 (0.65, 0.98), 0.030 |
| 9.15–9.65 | 229 (30.25) | 0.88 (0.73, 1.06), 0.175 | 0.88 (0.73, 1.07), 0.200 | 0.87 (0.72, 1.06), 0.161 | 0.88 (0.72, 1.08), 0.213 |
| > 9.65 | 265 (35.48) | 0.97 (0.80, 1.16), 0.718 | 1.09 (0.91, 1.32), 0.349 | 1.14 (0.94, 1.38), 0.172 | 1.14 (0.91, 1.41), 0.250 |
| P for trend | 0.776 | 0.108 | 0.07 | 0.174 | |
| Cardiovascular mortality | |||||
| TyG index | |||||
| ≤ 8.72 | 67 (8.89) | 1 (Ref) | 1 (Ref) | 1 (Ref) | 1 (Ref) |
| 8.72–9.15 | 52 (7.03) | 0.65 (0.46, 0.94), 0.022 | 0.64 (0.44, 0.92), 0.015 | 0.70 (0.48, 1.01), 0.055 | 0.69 (0.48, 1.00), 0.052 |
| 9.15–9.65 | 62 (8.19) | 0.72 (0.51, 1.01), 0.060 | 0.71 (0.50, 1.00), 0.051 | 0.74 (0.52, 1.05), 0.091 | 0.72 (0.50, 1.04), 0.081 |
| > 9.65 | 84 (11.24) | 0.93 (0.67, 1.28), 0.644 | 1.03 (0.74, 1.43), 0.851 | 1.12 (0.80, 1.57), 0.506 | 1.04 (0.70, 1.53), 0.857 |
| P for trend | 0.943 | 0.575 | 0.38 | 0.833 | |
CVD, cardiovascular disease; HR, hazard ratio; CI, confidence interval; Ref, reference.
Crude: unadjusted;
Model 1: corrected for age, sex, education level, PIR and BMI;
Model 2: Model 1 + race/ethnicity, smoking status, alcohol consumption status, CHD, HF, heart attack, stroke and angina;
Model 3: Model 2 + hypertension, hyperlipidemia, glucose-lowering medication use, HbA1c, LDL-C and TC.