Table 4. Univariate analyses of clinicopathologic parameters on recurrence-free and overall survival in patients with squamous cell carcinoma.

	Squamous cell carcinoma (n=996)
		Recurrence-free survival		Overall survival
Variables	N	5-year rate (%)	P-value	5-year rate (%)	P-value
Age, years
As continuous variable	996 (100)		<0.001		<0.001
<30	16 (1.6)	94	<0.001	94	<0.001
30–49	574 (57.6)	94		97
>50	406 (40.8)	88		91
FIGO stage
IA2	80 (8.0)	100	0.002	100	0.061
IB1–IB2	824 (82.7)	92		94
IIA	92 (9.3)	83		91
Grade of differentiation a
Well	269 (27.4)	92	0.705	93	0.896
Moderately	479 (48.8)	92		94
Poorly	234 (23.8)	90		93
Tumour size, cm
⩽2	463 (46.5)	97	<0.001	98	<0.001
2–4	416 (41.8)	89		92
4–6	94 (9.4)	80		87
>6	23 (2.3)	75		77
Depth of stromal invasion
⩽1/2	618 (62.0)	94	<0.001	95	0.001
>1/2	378 (38.0)	87		91
Parametrial involvement
No	906 (91.0)	93	<0.001	95	<0.001
Yes	90 (9.0)	78		82
Resection margin
Negative	972 (97.6)	92	0.399	94	0.170
Positive	24 (2.4)	96		100
LVSI
No	780 (78.3)	93	<0.001	95	0.003
Yes	216 (21.7)	87		90
Lymph node metastasis
No	860 (86.3)	93	<0.001	95	<0.001
Yes	136 (13.7)	82		85
Adjuvant treatment
None	748 (75.1)	94	<0.001	96	<0.001
Chemotherapy	66 (6.6)	89		91
Radiation therapy	87 (8.7)	84		87
CCRT	95 (9.5)	82		85

Abbreviations: CCRT=concurrent chemoradiation therapy; FIGO=International Federation of Obstetrics and Gynecology; LVSI, lymphovascular space invasion.

^aGrade of differentiation was undetermined in 21 patients.