Table II.

The clinicopathological parameters and expression of APOL1 protein for 135 patients with oral squamous cell carcinoma.

	APOL1 expression, n
Clinicopathological parameter	High	Low	P-value
Cancerous cases vs. non-cancerous cases			0.001
Cancerous cases	61	74
Non-cancerous cases	0	13
Sex
Male	53	51	0.015
Female	8	23
Age, years
≥60	24	31	0.728
<60	37	42
Grade
1–2	25	35	0.491
3–4	36	39
Stage
I–II	25	35	0.491
III–IV	36	39
Pathological T
T1-T2	43	15	0.840
T3-T4	59	18
Pathological N
N0	34	45	0.601
N1	27	29
Pathological M
M0	61	73	0.456
M1	0	1

APOL1, apolipoprotein L1; T, tumor; N, node; M, metastasis; Grade, clinical pathological grade; Stage, TNM stage.