Table 4.

Factors associated with SLE flares in vaccinated patients (logistic regression).

Covariates	Relative risk (95 % CI)	P
Age, year	0.97 (0.94–1.01)	0.12
Women	0.81 (0.21–3.05)	0.75
SLE duration, year	0.98 (0.93–1.04)	0.47
RNA vaccine (vs inactivated vaccine)	0.76 (0.34–1.69)	0.50
Active SLE serology before vaccination	2.63 (1.05–6.62)	0.04
Use of prednisolone at time of vaccination	1.95 (0.91–4.19)	0.09
Anti-Sm	1.67 (0.64–4.39)	0.30
Anti-nRNP	1.31 (0.52–3.33)	0.57
History of arthritis	2.71 (1.05–7.00)	0.04
History of discoid skin lesions	4.73 (1.90–11.8)	0.001

*CI = confidence interval; SLE = systemic lupus erythematosus.