Table 3.

Differences in sIgA protein levels and lactoferrin levels based on the history of breastfeeding with the frequency of ARI in the last 6 months.

Biomarker	Breastfeeding with ARI Frequency	N	Mean	SD	95% CI	p-value
sIgA	non-EBF with ARI FQ ≥ 2 times	31	43117.85	13375.61	37932.02–48303.68	0.000a
	non-EBF with ARI FQ < 2 times	31	88864.14	13222.18	83678.31–94049.96
	EBF with ARI FQ ≥ 2 times	25	136683.47	16106.02	130908.78–142458.17
	EBF with ARI FQ < 2 times	37	188901.77	15530.46	184155.00–193648.54
Lactoferrin	non-EBF with ARI FQ ≥ 2 times	31	32.50	19.33	23.91–41.08	0.000a
	non-EBF with ARI FQ < 2 times	31	98.84	22.12	90.26–107.42
	EBF with ARI FQ ≥ 2 times	25	181.49	27.02	171.94–191.05
	EBF with ARI FQ < 2 times	37	262.32	27.11	254.46–270.18

^aOneway ANOVA, p < 0.001 (very strong significant).