Table 7.

Association of percentage of abnormal nuclei and time to first treatment from the time of FISH testing

	N (%)	Treated	Median TTFT (months)	P‐value
% of 17p – (Fig 4)
5–20%	59 (49)	33	44	0·002
20–50%	14 (12)	10	1
50–65%	15 (13)	12	1
65–80%	11 (9)	8	8
>80%	21 (18)	17	1
% of 11q –
5–20%	13 (10)	11	2	0·96
20–35%	18 (15)	15	3
35–50%	12 (10)	8	3
50–65%	16 (13)	15	2
65–80%	24 (19)	21	3
>80%	41 (33)	32	3
% of trisomy 12
1·5–15%	23 (14)	15	54	0·03
15–30%	17 (10)	10	30
30–45%	19 (12)	14	15
45–60%	29 (18)	22	29
60–75%	44 (27)	34	7
>75%	31 (19)	28	3
% of 13q – (Fig 3)
7–25%	78 (15)	26	Not reached	<0·0001
25–40%	54 (11)	17	85
40–55%	81 (16)	31	89
55–70%	80 (16)	32	71
70–85%	111 (22)	53	52
>85%	104 (20)	65	24

FISH, fluorescence in situ hybridization; TTFT, time to first treatment.