Table 4

Estimated association between incident proteinuria and low complement and anti-dsDNA controlling each other as well as race and sex, based on a multivariable model

PredictorRate ratio (95% CI)p Value
Age (per 5-year increase)0.8 (0.7 to 0.9)<0.0001
Non-Caucasian (vs Caucasian)2.4 (1.3 to 4.3)0.0035
C3 (mg/dL) at previous cohort visit
 79+1.0 (Ref. Group)
 70–781.3 (0.5 to 3.6)0.65
 ≤693.1 (1.4 to 6.7)0.0053
C4 (mg/dL) at previous cohort visit
 12+1.0 (Ref. Group)
 10–112.2 (0.9 to 5.4)0.090
 ≤94.3 (2.0 to 9.3)0.0002
Anti-dsDNA (titer) at previous visit
 01.0 (Ref. Group)
 1–803.6 (1.6 to 7.9)0.0017
 81+4.2 (2.0 to 8.6)<0.0001