. 2018 Jan 5;13(1):e0189176. doi: 10.1371/journal.pone.0189176

Table 2. Main clinical features of the women in the AE and MLD groups.

	AE		MLD		p-value
	n	%	N	%	p-value
Age					0.84
<55 years	22	41.5	24	45.3
≥55 years	31	58.5	29	54.7
Body Mass Index					0.53
<25 Kg/m²	15	28.3	19	35.8
≥25 Kg/m²	38	71.7	34	64.2
Type of Surgery					0.0786^*
MRM Patey	29	54.7	19	35.8
MRM Madden	24	45.3	33	62.3
RM Halsted	0	0.0	1	1.9
Operated breast					0.8455
Right	29	54.7	28	52.8
Left	24	45.3	25	47.2
Dominant limb					1.0000^*
Right	49	92.2	50	94.3
Left	4	7.5	3	5.7
Clinical Stage					0.0705^*
I	1	2.0	0	0.0
II	17	34.0	9	18.0
III/IV	32	64.0	43	82.0
Surgical Stage					0.0915^*
I	2	3.8	1	1.9
II	20	37.7	11	20.8
III/IV	31	58.5	41	77.4
Level of dissected lymph nodes					0.2703^*
1	2	3.8	0	0.0
2 or 3	51	96.3	53	100.0
Neoadjuvant chemotherapy					0.0187
Yes	24	45.3	36	67.9
No	29	54.7	17	32.1
Adjuvant chemotherapy					0.0690
Yes	8	36.4	18	62.1
No	14	63.6	11	37.9
Radiotherapy					0.2901^*
Yes	16	72.7	26	86.7
No	6	27.3	4	13.3
Irradiation					0.1783^*
Plastron	1	6.3	6	23.1
Plastron+SCF	14	87.5	18	69.2
Plastron+SCF+Axilla	0	0.0	2	7.7
Plastron+SCF+Cervical region	1	6.3	0	0.0
Hormone therapy					0.790^*
Yes	14	63.6	18	60.0
No	8	36.4	12	40.0
Immunotherapy					1.000^*
Yes	3	13.6	5	16.7
No	19	86.4	25	83.3
Shoulderhistory antecedentes					0.449^*
Fracture	1	1.9	5	9.6
Luxation	1	1.9	0	0.0
Bursitis	2	3.8	2	3.8
Tendinitis	5	9.6	5	9.6
Unknown pain	6	11.5	9	17.3
Absent	37	71.2	31	59.6
Heaviness sensation					0.3757
Yes	9	36.0	16	64.0
No	13	48.1	14	51.9
Smoking					1.0000^*
Yes	2	40.0	3	60.0
No	20	42.5	27	57.5
Practice of exercises					0.4575
Yes	8	36.4	14	63.6
No	14	46.7	16	53.3
Care UL					0.3481^*
Follows daily	15	68.2	17	56.7
Follows partly	5	22.7	12	40.0
No follows	2	9.1	1	3.3
Seroma					0.2201
Yes	16	40.0	24	60.0
No	33	52.4	30	47.6
Aspiration					0.1114
Yes	13	37.1	22	62.9
No	36	53.7	31	46.3
Dehiscence					0.8280
Yes	6	50.0	6	50.0
No	42	46.7	48	53.3
Infection					0.2723
Yes	15	55.6	12	44.4
No	32	43.2	42	56.8

MRM = modified radical mastectomy; RM = radical mastectomy; SCF = supraclavicular fossa; UL = upper limbs/ Chi-Square test;

(*) Fisher’s Exact test