Table 4.

Hazard ratio of organ damage (n = 141) by cumulative average dose of prednisone.

Cumulative Average PrednisoneUnadjusted ModelConventionally-Adjusted Model*Weighted Model*
Dose (mg/mo)% of Patient-mosNo. of EventsHR95% CIHR95% CIHR95% CI
035.934RefRefRef
> 0–18037.0491.581.00, 2.502.011.11, 3.631.160.54, 2.50
> 180–36014.9292.101.24, 3.552.461.17, 5.161.500.58, 3.88
> 360–5406.7183.041.67, 5.533.541.55, 8.121.640.58, 4.69
> 5405.5214.192.35, 7.474.101.74, 9.652.510.87, 7.27
  • * Adjusted for age, sex, race/ethnicity, baseline prednisone dose, baseline SLE activity, baseline organ damage, and time-varying covariates. HR: hazard ratio.