Table 5. Associations between Corynebacterium diphtheriae carriage and diphtheria toxoid IgG levels adjusted for age assessed by logistic regression and between IgG levels and mid-upper arm circumference adjusted for age by linear regression, Vietnam* .

Association between carriage status and IgG	Crude odds ratio 95% CI)	p value	Adjusted odds ratio (95% CI)	p value
log-transformed IgG level	1.49 (1.15‒1.93)	<0.01	1.49 (1.17‒1.90)	<0.01
Age, y	0.94 (0.90‒0.97)	<0.01	0.94 (0.90‒0.97)	<0.01
Association between IgG and MUAC	Crude coefficient	p value	Adjusted coefficient	p value
MUAC, cm	0.01 (‒0.01 to 0.02)	0.43	0.02 (0.00‒0.03)	0.014
Age, y	‒0.21 (‒0.34 to ‒0.08)	<0.01	‒0.31 (‒0.45 to ‒0.16)	<0.01
*MUAC, mid-upper arm circumference.