Prognostic impact of presumed breast or ovarian cancer among patients with unfavorable-subset cancer of unknown primary site

Table 1 Baseline characteristics of patients in the study groups

	P-CUP	U-CUP
Characteristics	Number		p-value
Age, years, median (range)	62 (49–78)	60 (23–79)
< 65 years	10	34	0.21
> 65 years	12	80
Sex
Male	2	60	< 0.001
Female	20	54
Performance status
0–1	22	99	0.60
2–4	0	7
Unknown	0	8
Site of metastasis
Visceral organ	4	36	0.31
Lung	2	22
Liver	2	20
Brain	0	2
Other organ	0	7
Bone	5	25
Lymph node (LN)
Superficial LN	14	54
Deep LN	11	67
Histology
Adenocarcinoma	20	56	< 0.001
Non-adenocarcinoma	2	58
Undifferentiated carcinoma	2	33
Malignant neoplasm	0	9
Squamous cell carcinoma	0	16

Data are presented as n (number), unless otherwise indicated
P-CUP CUP with a putative primary site, U-CUP patients with unfavorable-subset CUP

ISSN: 1471-2407