Table 4 Adjusted multivariate binary logistic regression identifying significant risk factors for excessive compared to normal GWG

 Underweight

.716

1.68

.10, 27.12

 Normal

ref

 Overweight

<.001

4.16

1.94, 8.89

 Obese

.010

4.20

1.41, 12.50

 Left before GCSE

.148

.32

.07, 1.49

 GCSE & Vocational

.613

1.27

.50, 3.23

 A-level

.577

1.39

.44, 4.42

 University

ref

 Postgraduate

.829

.92

.41, 2.06

 < 18,000

.043

.24

.06, .96

 18–25,000

.358

.54

.15, 2.00

 25–43,000

.002

.25

.10, .61

 > 43,000

ref

 Do not wish to say

.890

.92

.30, 2.81

 No

ref

 Yes

.005

.37

.19, .74

Term EPDS score

.019

1.10

1.02, 1.18