Table 1.

Risk of HUS by Selected Demographic Characteristics

FactorProportion of Patients With Factor Who Developed HUSRate Ratio (95% CI)P Value
Number/Total (%)
Age (y)
 <312 /76 (16)2.1 (0.8–5.7).13
 3–49 /63 (14)1.9 (0.7–5.4).21
 5–811 /72 (15)2.1 (0.8–5.6).15
 >85 /67 (7)Referent
Sex
 Female23 /145 (16)1.5 (0.8–2.8).19
 Male14 /133 (11)Referent
Annual family income
 <$30 00012 /93 (13)Referent
 $30 000–$50 00011 /81 (14)1.0 (0.5–2.3).91
 >$50 00010 /81 (12)1.0 (0.4–2.1).90