Evolutionary aspects of non-metastatic breast cancer after primary treatment in a sub-Saharan African setting: a 16-year retrospective review at the Douala general hospital, Cameroon

Table 5 Time interval between initial treatment and occurrence of metastases

Type of metastasis	Interval (months)	Frequency	Percentage
Local recurrence	0–12	38	55.9
	13–24	13	19.1
	25–36	4	5.9
	37–48	4	5.9
	49–60	3	4.4
	>60	6	8.8
		68	*100*
Distant metastasis	0–12	37	50
	13–24	17	23
	25–36	10	13.5
	37–48	4	5.4
	49–60	4	5.4
	>60	2	2.7
		74	*100*
Brain metastasis	0–12	7	50
	13–24	3	21.4
	25–36	4	28.6
		14	*100*
Bone metastasis	0–12	15	62.5
	13–24	6	25
	25–36	2	8.3
	37–48	0	0
	49–60	1	4.2
		24	*100*
Lung metastasis	0–12	9	40.9
	13–24	6	27.3
	25–36	3	13.6
	37–48	1	4.5
	49–60	2	9.1
	>60	1	4.5
		22	*100*
Liver metastasis	0–12	3	42.9
	13–24	1	14.3
	25–36	0	0
	37–48	0	0
	49–60	1	14.3
	>60	2	28.6
		7	*100*
Nodal metastasis	0–12	8	44.4
	13–24	4	22.2
	25–36	4	22.2
	37–48	2	11.1
		18	*100*

The entries in boldface/italics represent the total case files for which information on the relevant variable was available

ISSN: 1471-2407