Table 5 Survival analysis in patients ≥ 50 years

Age

1.04 (1.01–1.07)

0.0063

1.04 (1.01–1.07)

0.0108

No

1

1

Yes

2.04(1.09–3.81)

0.0251

1.99 (1.05–3.77)

0.0347

AJCC stage

T1a

1

1

T1b

1.56 (0.61–3.96)

0.3531

2.30 (0.87–6.09)

0.0931

T1c

2.38 (1.18–4.78)

0.0151

2.87 (1.41–5.86)

0.0037

T1x

0.60 (0.14–2.49)

0.4793

0.58 (0.14–2.42)

0.4527

Histology

Serous

1

1

Mucinous

1.53 (0.90–2.62)

0.1175

1.87 (1.07–3.27)

0.0278

Race

White

1

Black

1.01 (0.32–3.24)

0.9879

Other

0.23 (0.03–1.68)

0.1476

Marital status

Single*

1

Married

0.63 (0.37–1.08)

0.0915

unknown

N/A

0.9860

Hysterectomy

No

1

Yes

0.41 (0.24–0.70)

0.0012

Size (cm)

<=5

1

> 5

1.00 (1.00–1.01)

0.3384

Lymphadenectomy

No

1

Yes

0.78 (0.33–1.82)

0.5639

Unknown

0

0.9888

Laterality

Unilateral

Bilateral

1.10 (0.61–1.99)

0.7511

Unknown

0.91 (0.42–1.94)

0.7986