Table 2 Predictors of positive immune response for both serotypes (23F + 6B) using multivariate logistic regression analysis

Sex, male/female

0.269

0.34

0.05, 0.31

Disease duration, years

0.016

0.90

0.82, 0.98

DAS28

0.028

0.53

0.30, 0.93

MTX at vaccination, yes/no

0.044

0.13

0.02, 0.94

Prednisolone at vaccination, mg/week

0.118

0.02

1.00, 1.04

Rituximab at vaccination, yes/no

0.033

0.06

0.01, 0.80