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. 2005 Jun 27;2:10. doi: 10.1186/1742-4933-2-10

Table 6.

Correlation between opsonophagocytic titers and antibody concentration.

CPS CPS + PPS22F P value
PPS4 Young 0.64 0.81 0.28
Elderly 0.69 0.79 0.51
PPS14 Young 0.90 0.88 0.78
Elderly 0.75 0.72 0.85

Correlation coefficients of association (r values) between post-immunization opsonophagocytic titer and antibody concentration following absorption with CPS or CPS + 22F in young and elderly volunteers. There was no significant difference between absorption techniques by Fisher's Z transformation.