CD27- IgD- B cell memory subset associates with inflammation and frailty in elderly individuals but only in males

Immunity & Ageing

Table 1 Spearman correlation of the plasma IL-6 levels (pg/ml) with the proportions of the B cell subsets in nonagenarians (22 males, 39 females)

B cell subset	gender	correlation coefficient	p-value
CD27- IgD-	male	0.666	< 0.001
CD27- IgD-	female	0.183	0.265
CD27- IgD+	male	−0.253	0.256
CD27- IgD+	female	−0.150	0.362
CD27+ IgD+	male	−0.217	0.331
CD27+ IgD+	female	0.004	0.982
CD27+ IgD-	male	−0.300	0.175
CD27+ IgD-	female	0.015	0.926

Correlation coefficient and significance of statistically significant associations are indicated in boldface

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