Table 5.

Relapse rates in patients receiving alternate day prednisolone alone (strata 1) and alternate day prednisolone with levamisole (strata 2)

Alternate Day Prednisolone (n = 68)
Intervention (n = 35)Controls (n = 33)Rate DifferenceP
Infection-associated relapses (episodes/patient per yr)a0.6 ± 0.21.5 ± 0.40.9 (0.3, 1.4)<0.001
Total relapses (episodes/patient per yr)a0.9 ± 0.31.9 ± 0.51.1 (0.4, 1.7)<0.001
Alternate Day Prednisolone and Levamisole (n = 32)
Intervention (n = 15)Controls (n = 17)Rate DifferenceP
Infection-associated relapses (episodes/patient per yr)a0.7 ± 0.21.1 ± 0.40.4 (−0.3, 1.1)0.2
Total relapses (episodes/patient per yr)a1.0 ± 0.31.6 ± 0.40.6 (−0.3, 1.3)0.2
  • a The relapse rates are the mean incidence density rates ± SD (95% confidence interval).