Prognostic value of combined stratification using TyG index and CD4⁺ T cell count for 28-day all-cause mortality risk in patients with HIV infection and sepsis: a retrospective cohort study.

In Cox models ( Table 3 ), relative to the reference group (CD4 ≥ 50 &TyG < 9.22), the adjusted hazard ratio (Model 3) for 28-day mortality in the CD4 < 50 &TyG ≥ 9.22 group was 2.82 (95% CI, 1.77–4.50; p < 0.001), with a significant trend across strata ( p for trend <0.001).

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