Table 6.

Association of high vitamin B₁₂ levels with postoperative AKI development, using 1300 pg/mL as the cut-off value, in the entire and PS-matched patients

	β	OR	95% CI	P value
In all patients (n=479)
High vitamin B12 (vs normal vitamin B12) adjusted for PS	1.198	3.313	2.104 to 5.218	<0.001
In the PS-matched patients (n=190)
High vitamin B12 (vs normal vitamin B12) adjusted for PS	1.164	3.204	1.554 to 6.605	0.002

AKI, acute kidney injury; PS, propensity score.