Table 3.

Laterality of luminal A breast cancer patients and their treatment profiles.

Characteristic	Total IBrC		Left IBrC		Right IBrC		p-Values	LRR
	n	%	n	%	n	%
Surgery
BCS	43	70	18	75	25	68	0.5341	0.72
MRM	18	30	6	25	12	32		0.5
Radiotherapy
No	11	18	3	12.50	8	22	0.3653	0.37
Yes	50	82	21	87.50	29	78		0.72
Brachytherapy
No	32	52	14	58	18	49	0.4594	0.77
Yes	29	48	10	42	19	51		0.52
Chemotherapy
No	47	77	22	92	25	68	0.0288	0.88
Yes	14	23	2	8	12	32		0.16
Hormonal therapy
No	4	7	0	0	4	11	0.0957	0
Yes	57	93	24	100	33	89		0.72

IBrC—invasive breast carcinoma, LRR—left-to-right ratio, BCS—breast-conserving surgery, MRM—modified radical mastectomy; a significant difference is denoted by bold p-values; underlined p-values represent closeness to statistical significance.