Table 2 Spearman correlation coefficients adjusted for gestational age between successive trimesters of one pregnancy ^a

 2nd

0.509 ^**

0.518 ^***

0.519 ^***

 3rd

0.319 ^***

0.597 ^*

0.376

0.629 ^**

0.121

0.519 ^***

 2nd

0.519 ^**

0.742 ^*

0.307

 3rd

0.293

0.609 ^*

0.592 ^**

0.707 ^**

−0.107

0.521 ^***

 2nd

0.629 ^*

0.306

0.719 ^*

 3rd

0.394 ^**

0.643 ^*

0.321

0.569 ^***

0.323

0.672 ^**

 2nd

0.674 ^*

0.789 ^*

0.511 ^***

 3rd

0.508 ^**

0.765 ^*

0.614 ^**

0.850 ^*

0.240

0.551 ^**

 2nd

0.575 ^*

0.739 ^*

0.464 ^***

 3rd

0.327 ^***

0.686 ^*

0.675 ^**

0.660 ^**

0.315

0.661 ^**

 2nd

0.538 ^*

0.631 ^**

0.406

 3rd

0.497 ^**

0.779 ^*

0.574 ^***

0.643 ^**

0.441 ^***

0.827 ^*

 2nd

0.774 ^*

0.968 ^*

0.427

 3rd

0.729 ^*

0.818 ^*

0.806 ^*

0.878 ^*

0.528 ^***

0.808 ^*