Table I.

Characteristic of the ANN patients with poor and good prognosis.

Characteristic	Total	Poor prognosis	%	Good prognosis	%	P-value
All	195	65		130
Age at diagnosis, years
<35	5	2	3.1	3	2.3
35 to <49	94	31	47.7	63	48.5
>50	96	32	33.3	64	49.2	>0.05
Mean ± SD		54.0±10.2		54.1±10.1		>0.05
Menopausal status
Premenopausal	92	30	46.2	62	48.0
Postmenopausal	103	35	53.8	68	52.0	>0.05
Tumor size
T1a+T1b	6	2	3.1	4	3.1
T1c	40	14	21.5	26	20.0
T2	137	45	69.2	92	70.8
T3	12	4	6.2	8	6.1	>0.05
Family history
Yes	29	9	13.8	20	15.4
No	166	56	86.2	110	84.6	>0.05
Peritumoural vascular invasion
Absent	176	54	83.1	123	94.6
Present	19	11	16.9	7	5.4	0.009
Tumor grade
Low	26	5	7.7	21	16.2
Intermediate	128	40	61.5	88	67.7
High	41	20	30.8	21	16.2	0.031
Molecular subtype
‘Luminal A-like’	59	11	16.9	48	36.9
‘Luminal B-like (HER2 negative)’	41	13	20.0	28	21.5
‘Luminal B-like (HER2 positive)’	21	8	12.3	13	10.0
‘HER2 positive’	23	12	18.5	11	8.5
‘Triple negative’	51	21	32.3	30	23.1	0.026
Chemotherapy
Yes	152	52	80.0	100	76.9
No	43	13	20.0	30	23.1	>0.05
Radiotherapy
Yes	48	15	23.1	33	25.4
No	147	50	76.9	97	74.6	>0.05
Endocrine therapy
No. of ER positive subtype	121	32	49.2	89	68.5
Yes	108	28	43.1	80	61.5
No	13	4	6.1	9	7.0	>0.05

Statistical tests for categorical variables were performed using the χ² test; mean age was tested using the Mann-Whitney test. ANN, axillary lymph node-negative; HER2, human epidermal growth factor receptor 2; ER, estrogen-receptor.