Table 2.

Number of canine packed red blood cell (pRBC) units with hemolysis >1% (overall and by time point, t0–t6).

Storage time group	≤ 1% (n = 4,660)	> 1% (n = 923)
t0 (n = 1854)	99.84% (n = 1851)	0.16% (n = 3)
t1 (n = 47)	93.62% (n = 44)	6.38% (n = 3)
t2 (n = 30)	80.00% (n = 24)	20.00% (n = 6)
t3 (n = 70)	75.71% (n = 53)	24.29% (n = 17)
t4 (n = 2073)	74.53% (n = 1,545)	25.47% (n = 528)
t5 (n = 1,327)	74.91% (n = 994)	25.09% (n = 333)
t6 (n = 182)	81.87% (n = 149)	18.13% (n = 33)

n: number of units; t0: units tested within 72 h after processing; t1: units tested after 4–7 days of storage; t2: units tested after 8–14 days of storage; t3: units tested after 15–21 days of storage; t4: units tested after 22–28 days of storage; t5: units tested after 29–35 days of storage; t6: units tested after 36–42 days of storage; ≤ 1%: units not exceeding 1% of hemolysis; > 1%: units exceeding 1% of hemolysis.