Table 5. Multivariate models of prognostic factors among subset of women who received surgery alone (n=3,407).

Factors		aHR* of overall survival (95% CI)	p-value
Age (yr)
	≤40	Reference
	≤50	0.978 (0.628–1.522)	0.920
	≤60	1.368 (0.878–2.129)	0.166
	≤70	0.807 (0.440–1.483)	0.490
	>70	3.116 (1.836–5.289)	<0.001
T categories
	T1B	Reference
	T2	3.074 (2.089–4.522)	<0.001
N categories
	N0	Reference
	N1	4.170 (2.569–6.767)	<0.001
M categories
	M0	Reference
	M1	3.825 (1.203–12.456)	<0.001
Histology
	SCC	Reference
	Adenocarcinoma	1.997 (1.401–2.849)	<0.001
	Others	3.076 (1.957–4.846)	<0.001
Institutions
	Non-JSGO-accredited	Reference
	JSGO-accredited	0.552 (0.393–0.775)	0.004

aHR, adjusted-hazard ratio; CI, confidence interval; HR, hazard ratio; JSGO, Japan Society of Gynecologic Oncology; M, metastasis; N, node; SCC, squamous cell carcinoma; T, tumor.

^*HRs are adjusted for all variables in the table.