Table 2.

Association of FISH category and time to first treatment from diagnosis for patients who had FISH testing done less than 4 years after diagnosis of chronic lymphocytic leukaemia (N = 1045)

	N	Treated (n)	Median TTFT–DX (months)	P‐value
FISH category
17p deletion	122	93	22	<0·0001
11q deletion	113	92	22
Trisomy 12	148	113	30
Normal	252	164	35
13q deletion	411	183	72

FISH, fluorescence in situ hybridization; TTFT‐DX, time to first treatment measured from the date of diagnosis.