Table 1.

General information.

Projects		Observation group	Control group	X 2	P
Age		52.25 ± 12.30	54.12 ± 10.25	0.06	>0.05
Marriage	In marriage	41	39	0.04	>0.05
	Not in marriage	11	13
Work	Yes	12	9	1.80	>0.05
	No	40	43
Health care costs	Self-paying	3	4	0.02	>0.05
	Health care	49	48
Mastectomy	Yes	38	37	0.12	>0.05
	No	14	15
Lymph node metastasis	Yes	8	9	0.08	>0.05
	No	44	43
Maximum tumor diameter		2.04 ± 1.14	1.85 ± 1.09	0.25	>0.05