. 2016 Jan 24;213(11):1809–1819. doi: 10.1093/infdis/jiw030

Table 1.

Pearson Correlation Analysis of Cellular and Humoral Immune Responses

Variable	Duodenal Mucosa				Peripheral Blood				Serum
	Ty21a		Influenza Virus		Ty21a		Influenza Virus		S. Typhi LPS		Influenza Virus
	CD4⁺ T Cells	CD8⁺ T Cells	CD4⁺ T Cells	CD8⁺ T Cells	CD4⁺ T Cells	CD8⁺ T Cells	CD4⁺ T Cells	CD8⁺ T Cells	IgG	IgA	IgG	IgA
Duodenal mucosa
Ty21a
CD4⁺ T cells	1	0.537^a	0.741^b	0.724^b	0.530^a	0.319	−0.102	−0.223	0.542^a	0.710^a	0.160	0.008
CD8⁺ T cells	…	1	0.587^b	0.677^b	0.395	0.126	−0.117	−0.232	0.315	0.396	0.177	−0.348
Influenza virus
CD4⁺ T cells	…	…	1	0.929^b	0.327	0.299	−0.025	−0.122	0.392	0.512^a	−0.245	−0.228
CD8⁺ T cells	…	…	…	1	0.394	0.515	0.099	0.080	0.392	0.585^b	−0.149	−0.300

Unless otherwise indicated, values were not statistically significant.

Abbreviations: IgA, immunoglobulin A; IgG, immunoglobulin G; LPS, lipopolysaccharide; S. Typhi, Salmonella enterica serovar Typhi; Ty21a, live-attenuated Salmonella Typhi strain Ty21a.

^a P < .05.

^b P < .001.