Table 2 The correlation analysis of blood pressure and other variables (n = 503)

Age (years)

-0.05

0.620

-0.16

0.101

-0.02

0.840

-0.10

0.321

Pre-pregnancy BMI (kg/m2)Pre-pregnancy BMI (kg/m2)

0.21

0.039

0.23

0.019

0.21

0.030

0.15

0.140

At performing OGTT

  BMI (kg/m2) BMI (kg/m2)

0.24

0.025

0.21

0.059

0.35

< 0.001

0.33

0.002

  FBG (mmol/L)

0.14

0.172

-0.08

0.437

0.09

0.390

0.16

0.126

  1 h BG (mmol/L)

0.03

0.777

-0.07

0.455

0.24

0.010

0.15

0.124

  2 h BG (mmol/L)

-0.03

0.761

-0.08

0.41

0.18

0.070

0.11

0.253

  HbA1c (%)

0.17

0.083

0.10

0.329

0.25

0.010

0.14

0.178

  Area under BG curve

0.07

0.498

-0.05

0.628

0.35

< 0.001

0.23

0.028

  HOMA - IR* HOMA - IR*

0.25

0.026

0.16

0.162

0.07

0.530

0.11

0.314

  HOMA - β* HOMA - β*

-0.03

0.788

0.17

0.156

-0.19

0.120

-0.18

0.132

  CH (mmol/L)

-0.01

0.959

-0.08

0.421

0.04

0.690

0.01

0.896

  TG (mmol/L)

0.09

0.366

0.16

0.114

0.18

0.070

0.15

0.126

  HDL (mmol/L)

-0.12

0.246

-0.04

0.685

-0.02

0.840

-0.04

0.677

  LDL (mmol/L)

0.01

0.947

-0.10

0.336

0.02

0.850

0.00

0.979

One week before delivery

  BMI (kg/m2)

NA

NA

NA

NA

0.39

< 0.001

0.29

0.030

  Total GWG (kg)

NA

NA

NA

NA

0.22

0.029

0.12

0.224

  Rate of weight gain after intervention (kg week-1)

NA

NA

NA

NA

0.07

0.950

0.036

0.751