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Table 1 Summary statistics for the time period between the 17th Week of pregnancy (time 0) and the 18th Month Postpartum (time 1)

From: Body image mediates the depressive effects of weight gain in new mothers, particularly for women already obese: evidence from the Norwegian Mother and Child Cohort Study

  Normal weight (18.5 < BMI ≤ 25) Overweight (25 < BMI ≤ 30) Obese (30 < BMI)
  Mean S.D. Min. Max. Mean S.D. Min. Max. Mean S.D. Min. Max.
Transition to mild or more severe depressive symptoms (1/0)
 between time 0 and 1 0.09 0.29 0 1 0.10 0.29 0 1 0.11 0.32 0 1
Time-variant variables at Time 1
 BMI change 0.21 0.64 -3.57 8.33 0.11 0.73 -5.73 4.29 -0.10 0.82 -4.09 3.78
 Body image concern 1.48 1.15 0 3 2.07 0.95 0 3 2.19 0.86 0 3
 Partner 20.56 4.11 0 25 20.44 4.21 0 25 20.22 4.43 0 25
 Talk rarely 0.01 0.10 0 1 0.01 0.10 0 1 0.01 0.12 0 1
 Talk occasionally 0.22 0.41 0 1 0.20 0.40 0 1 0.17 0.38 0 1
 Talk often 0.77 0.42 0 1 0.79 0.41 0 1 0.81 0.39 0 1
 Stress 0.98 0.15 0 1 0.97 0.16 0 1 0.96 0.19 0 1
 Exercise 2.63 1.37 0 5 2.74 1.38 0 5 2.82 1.39 0 5
Time-invariant variables at Time 0
 Health 0.96 1.16 0 10 1.07 1.24 0 8 1.22 1.34 0 10
 Higher education 0.72 0.45 0 1 0.64 0.48 0 1 0.53 0.50 0 1
 Low income 0.09 0.28 0 1 0.09 0.28 0 1 0.11 0.32 0 1
 Mid income 0.75 0.43 0 1 0.80 0.40 0 1 0.81 0.39 0 1
 High income 0.16 0.37 0 1 0.12 0.32 0 1 0.07 0.26 0 1
 Foreign-born 0.10 0.31 0 1 0.08 0.27 0 1 0.07 0.26 0 1
 In the 20s 0.40 0.49 0 1 0.39 0.49 0 1 0.41 0.49 0 1
 In the 30s 0.58 0.49 0 1 0.58 0.49 0 1 0.56 0.50 0 1
 In the 40s 0.02 0.14 0 1 0.02 0.15 0 1 0.03 0.16 0 1
 Twins or triplets 0.02 0.13 0 1 0.02 0.13 0 1 0.02 0.14 0 1
 Age 30.60 4.23 18 47 30.75 4.39 18 47 30.59 4.50 18 46
 N 27,339 8845 3731