Statistics:
Dichotomous data were tested by a chi-squared test. A two-sided
significance level of p = 0.05 was used for determining
statistical significance. The Pearson correlation coefficient was used
to analyze correlation of titers between CLIA and ELNA (Microsoft®
Excel®, Microsoft 395 MSO, Windows 2010). To determine the predominant
titers in a group of patients, the median was calculated (Microsoft®
Excel®, Microsoft 395 MSO, Windows 2010).
RESULTS