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

Immunity & Ageing

Table 2 Spearman correlation of the Barthel and frailty indices with the proportions of the B cell subsets in nonagenarians

B cell subset	gender	r (Barthel index)	p-value (Barthel index)	r (Frailty index)	p-value (Frailty index)
CD27- IgD-	male	−0.601	0.003	0.616	0.002
CD27- IgD-	female	−0.274	0.091	0.157	0.34
CD27- IgD+	male	0.180	0.423	−0.387	0.076
CD27- IgD+	female	0.332	0.039	−0.181	0.27
CD27+ IgD+	male	0.339	0.123	−0.148	0.512
CD27+ IgD+	female	−0.173	0.293	−0.113	0.492
CD27+ IgD-	male	0.358	0.102	−0.036	0.874
CD27+ IgD-	female	−0.256	0.116	−0.003	0.983

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

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