Table 2

Cytokeratin 18 (CK18) antibody levels in patients with rheumatoid arthritis (RA) with or without ischaemic heart disease (IHD)

VariableIHD positive (n = 34)IHD negative (n = 28)p Value
Results are expressed as the means (SD). Data were analysed by the Mann-Whitney U test for non-parametric data. The p values are shown uncorrected for multiple comparisons. Significance for the difference in CK18 IgG levels was lost after correction by the Bonferroni procedure (p = 0.14).
CK18 IgG50.1 (35.8)34.5 (21.6)0.047
CK18 IgM20.7 (13.9)25.0 (21.0)0.5
CK18 IgA29.3 (28.4)22.2 (16.9)0.9