Hemolytic Uremic Syndrome: Late Renal Injury and Changing Incidence—A Single Centre Experience in Canada

Table 1

Analysis by length of followup.

Follow-up	<1 year	1 year	𝑃 value*
(N = 325)	(N = 126)	(N = 199)
Age at presentation, years	2.77 ± 3.72	3.27 ± 2.72	n.s.
(mean ± SD)
White blood cell count	16.58 ± 7.6	16.84 ± 6.92	n.s.
(mean ± SD)	×10^9/L	×10^9/L
Patients requiring dialysis, number (%)	44 (34.9%)	102 (51%)	𝑃=0.006
For patients requiring dialysis, average number of dialysis days	6.40 ± 4.83	9.23 ± 6.04	𝑃<0.001
(mean ± SD)

* P-value determined using Chi-square test.
SD: standard deviation; n.s.: nonsignificant.