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Table 3 Spearman correlation coefficients for cesarean rates by plurality and gestational age subgroups in 2008

From: Varying gestational age patterns in cesarean delivery: an international comparison

Subgroups

Overall

Singletons

Multiples

≥22 wks

26-31 wks

32-36 wks

37-38 wks

39-41 wks

≥42 wks

<34 wks

34-36 wks

≥37 wks

Singletons

   

26-31 GA

0.16

1

 

32-36 GA

0.86*

0.45

1

 

37-38 GA

0.83*

0.39

0.89*

1

 

39-41 GA

0.86*

-0.05

0.60*

0.51*

1

 

≥42 GA

0.81*

-0.00

0.70*

0.63*

0.76*

1

 

Multiples

        

<34 GA

0.80*

0.24

0.67*

0.64*

0.59*

0.58*

1

  

34-36 GA

0.80*

-0.03

0.73*

0.62*

0.59*

0.60*

0.76*

1

 

≥37 GA

0.77*

-0.10

0.70*

0.57*

0.58*

0.57*

0.71*

0.98*

1

  1. Notes: Asterisks indicate p < 0.05. Gestational age (GA) in completed weeks (wks).
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