Table 2.

Relapse rates and cumulative prednisolone dosage at 12-month follow-up

Intervention Group (n = 49)Control Group (n = 46)Rate DifferenceP
Infection associated relapses- (episodes/patient per yr)a0.7 ± 0.3 (0.6, 1.1)1.4 ± 0.5 (1.2, 1.9)0.7 (0.3, 1.1)<0.01
Total relapses (episodes/patient per yr)a0.9 ± 0.4 (0.7, 1.2)1.8 ± 0.5 (1.4, 2.2)0.9 (0.4, 1.4)<0.0001
Mean Difference
Cumulative prednisolone (mg/kg per yr)b120 ± 32 (105, 131)138 ± 22 (112, 144)16 (−26, 38)0.3
  • a Relapse rates are the mean incidence density rates ± SD (95% confidence interval).

  • b The data are expressed as the means ± SD (95% confidence interval).