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Table 2

Polysomy of chromosome 17 in relation to p53 protein expression

Histology	Chromosome polysomy (mean ± SD, percentage)
Histology		No.	Overall	No.	p53 negative	No.	p53 positive	P ^a
Control	7	0 ± 0	7	0 ± 0	NA^b	NA	NA
Adjacent normal	31	1.8 ± 2.9	25	1.3 ± 1.9	6	4.1 ± 5.1	0.14
Hyperplasia	24	4.3 ± 3.9	17	3.5 ± 2.4	7	6.4 ± 6.3	0.38
Dysplasia	26	10.4 ± 12.5	14	4.6 ± 5.1	12	17.6 ± 15.3	0.005
Tumors	48	15.7 ± 12.8	20	8.6 ± 6.8	28	21.0 ± 13.8	0.0006

Histology	Chromosome polysomy (mean ± SD, percentage)
Histology		No.	Overall	No.	p53 negative	No.	p53 positive	P ^a
Control	7	0 ± 0	7	0 ± 0	NA^b	NA	NA
Adjacent normal	31	1.8 ± 2.9	25	1.3 ± 1.9	6	4.1 ± 5.1	0.14
Hyperplasia	24	4.3 ± 3.9	17	3.5 ± 2.4	7	6.4 ± 6.3	0.38
Dysplasia	26	10.4 ± 12.5	14	4.6 ± 5.1	12	17.6 ± 15.3	0.005
Tumors	48	15.7 ± 12.8	20	8.6 ± 6.8	28	21.0 ± 13.8	0.0006

^a

Wilcoxon’s rank-sum test.

^b

NA, not applicable.