Table 3.

Association of peak and pre-breakthrough RBD IgG index values with post-vaccination in infection in patients on dialysis^{^}

RBD IgG index value	Odds ratio (95% CI)	p-value
Peak *
Below 10 (vs. ≥ 10)	2.68 (1.45, 4.97)	0.002
Below 23 (vs. ≥ 23)	3.70 (2.02, 6.79)	<0.001
Pre-breakthrough *
Below 10 (vs. ≥ 10)	5.02 (2.38, 10.58)	<0.001
Below 23 (vs. ≥ 23)	9.80 (2.94, 32.76)	<0.001

^{^}Case control analysis in which cases were matched 1:5 to controls by age, sex, and calendar month of vaccination.

^*Associations determined from separate models which adjust for diabetes.