Table 5

 Response of participants with no influenza vaccination in the previous year (2002)

SLE patients (n = 22)Healthy Controls (n = 16)p Value
Fisher’s exact test was used for all variables.
SLE, systemic lupus erythematosus.
A/H1N1 titre ⩾40 after vaccination18 (82%)16 (100%)0.124
A/H1N1 seroconversion or fourfold titre rise14 (64%)16 (100%) 0.012
A/H3N2 titre ⩾40 after vaccination19 (86%)16 (100%)0.249
A/H3N2 seroconversion or fourfold titre rise10 (45%)15 (94%) 0.002
B/Hong Kong titre ⩾40 after vaccination15 (68%)12 (75%)0.729
B/Hong Kong seroconversion or fourfold titre rise13 (59%)12 (75%)0.490