Table 2.

Distribution of basal phenotype compared to all other (non-basal) phenotypes grouped together, according to age group (χ² test)

Group of carcinomas	Distribution according to age group, n (%)		P
	≤45 years	≥65 years
Non-basal	53 (81.5)	57 (91.9)
Basal	12 (18.5)	5 (8.1)	0.0854
Indeterminate	14	10
Total	79	72