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. 2007 Jan 15;41(5):322–327. doi: 10.1136/bjsm.2006.032029

Table 9 Spearman's correlation coefficients among measured parameters.

IgG IgA IgM C3 C4
PA per cell 0.267 0.217 0.211 0.127 0.112
ROS production per cell –0.222 0.167 0.200 0.100 0.023
AUC of SOA 0.198 –0.045 0.212 0.267 0.121

AUC, area under the curve; PA, phagocytic activity; ROS, reactive oxygen species; SOA serum opsonic activity.