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Table 6 Multivariable associations affecting uterine venous diameter (N = 1014)

From: The effect of pelvic pathology on uterine vein diameters

Model

Variable

Category

Ratio (95% CI)

P value

1

Parity

0

1

 < 0.001

  

1

1.12 (1.06, 1.18)

 
  

2

1.17 (1.12, 1.23)

 
  

3

1.26 (1.19, 1.33)

 
  

4 + 

1.29 (1.20, 1.38)

 
 

Menopausal status

Pre

1

 < 0.001

  

Post

0.84 (0.80, 0.88)

 
 

Ethnicity

White

1

0.02

  

Asian

0.95 (0.89, 1.01)

 
  

Black

1.06 (1.01, 1.12)

 
  

Middle Eastern

0.98 (0.91, 1.05)

 
  

Mixed/other

0.95 (0.88, 1.02)

 
 

Fibroids

No

1

0.003

  

Yes

1.06 (1.02, 1.09)

 

2

Parity

0

1

 < 0.001

  

1

1.13 (1.07, 1.19)

 
  

2

1.18 (1.13, 1.24)

 
  

3

1.27 (1.20, 1.34)

 
  

4 + 

1.31 (1.22, 1.40)

 
 

Menopausal status

Pre

1

 < 0.001

  

Post

0.85 (0.81, 0.88)

 
 

Ethnicity

White

1

0.03

  

Asian

0.94 (0.88, 1.00)

 
  

Black

1.04 (0.99, 1.10)

 
  

Middle Eastern

0.98 (0.91, 1.05)

 
  

Mixed/other

0.94 (0.87, 1.01)

 
 

Fibroids

No fibroids

1

 < 0.001

 

(by mean

 ≤ 50 mm

1.03 (0.99, 1.07)

 
 

diameter)

 > 50 mm

1.22 (1.14, 1.30)