Triglyceride-glucose index and assisted reproductive outcomes in non-PCOS women: evidence from a propensity score-weighted cohort of 9,903 patients.

Of note, the blastocyst formation rate exhibited a decreasing trend with higher TyG quartiles; in Q4 compared with Q1, the adjusted difference was − 2.37% points (β = − 2.37; 95% CI, − 4.78 to 0.03), which did not reach statistical significance, and other quartile contrasts were likewise non-significant.

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