Strain | Anti-hG6PI versus score | Anti-CII versus score |
n
|
---|
 | Rho | P value | Rho | P value |  |
---|
C3H.NB | 0.917* | 0.009* | 0.793* | 0.026* | 9 |
B10.Q | 0.402* | 0.046* | -0.094 | 0.614 | 26 |
(B10.Q × DBA1)F1 | 0.018 | 0.956 | 0.139 | 0.67 | 10 |
DBA/1 | 0.317 | 0.370 | 0.033 | 0.924 | 10 |
- To investigate correlations between arthritis severity and antibody production the Spearman correlation test was applied. Mice of indicated strains were immunized with 200 μg glucose-6-phosphate isomerase (G6PI) in complete Freund's adjuvant. Blood was drawn at day 40 and analyzed by ELISA for anti-hG6PI and anti-CII total IgG responses, as shown in Fig. 1. The accumulative arthritis score until day 40 was tested for correlation with antibody production using the Spearman rank correlation test. A rho value close to 1 indicates correlation of high ranks for IgG with high ranks for arthritis scores; 0 indicates that there is no correlation between values; and a number close to -1 indicates that high ranks for one variable correlate with low ranks for the other. *Significant positive correlations.