Table 2. Patient characteristics and distribution according to Ki67 expression in the test cohort (n=187).

	Low Ki67		High Ki67		All patients
Characteristics	Numbers	%	Numbers	%	Numbers	%	P-value
Age, Years
⩽61.5	50	53.2	44	46.8	94	50.3	NS*
>61.5	45	48.4	48	51.6	93	49.7	—
Sex
Female	25	62.5	15	37.5	40	21.4	NS*
Male	70	47.6	77	52.4	147	78.6	—
Histology
Epithelioid	81	51.9	75	48.1	156	83.4	NS*
Non- Epithelioid	14	45.2	17	54.8	31	16.6	—
Stage#
early stage	22	64.7	12	35.3	34	21.7	NS*
late stage	60	48.8	63	51.2	123	78.3	—
Treatment#
Surgery alone	12	46.2	14	53.8	26	16.6	0.02*
Best supportive care	13	39.4	20	60.6	33	21	—
Chemo and/or Radiotherapy	24	45.3	29	54.7	53	33.8	—
Multimodal treatment	32	71.1	13	28.9	45	28.7	—
Surgery#
Surgery	44	62	27	38	71	45.2	0.02*
No Surgery	37	43	49	57	86	54.8	—
Induction Therapy#
Induction	25	75.8	8	24.2	33	21	0.01*
Chemo-naïve at sampling time	56	45.2	68	54.8	124	79	—

Abbreviations: NS=not significant.

‘*'=two-sided χ²-test; ‘#'=missing cases: n=30 (16.0%).