Table 2. The interval time between... | American Society of Hematology

Table 2.

The interval time between sample collection and processing significantly influenced the achievement of adequate metaphases for analysis

Interval	Presence of metaphases	Absence of metaphases	Total	P*
<24 h	33	9	42
≥24 h†	17	20	37
Total	50	29	79	<.005

Interval	Presence of metaphases	Absence of metaphases	Total	P*
<24 h	33	9	42
≥24 h†	17	20	37
Total	50	29	79	<.005

Fisher’s exact test.

The time between sample collection and processing was 24 to 48 hours (n = 28) or >48 hours (n = 9).