Table 5 Maternal body mass index in pregnancy and hazard of mental disorders in offspring born 1975–1999.

From: Maternal body mass index in pregnancy and mental disorders in adult offspring: a record linkage study in Aberdeen, Scotland

Offspring mental disorder

Model 1

Model 2

Hazard ratio

p

Hazard ratio

p

(95% confidence interval)

(95% confidence interval)

Any mental disorder

Underweight

0.83 (0.48–1.44)

0.51

0.75 (0.43–1.30)

0.30

Normal weight

Reference category

Overweight

1.04 (0.89–1.22)

0.59

1.06 (0.90–1.24)

0.50

Moderate obesity

1.05 (0.79–1.39)

0.75

1.05 (0.79–1.39)

0.75

Severe obesity

1.55 (1.05–2.28)

0.03

1.60 (1.08–2.38)

0.02

Substance use disorder

Underweight

0.73 (0.27–1.98)

0.54

0.61 (0.23–1.64)

0.33

Normal weight

Reference category

Overweight

0.89 (0.68–1.18)

0.43

0.92 (0.70–1.21)

0.55

Moderate obesity

0.94 (0.58–1.54)

0.81

0.94 (0.57–1.54)

0.81

Severe obesity

1.80 (0.97–3.31)

0.06

1.91 (1.03–3.57)

0.04

Schizophrenia spectrum disorders

Underweight

0.31 (0.04–2.22)

0.24

0.29 (0.04–2.06)

0.21

Normal weight

Reference category

Overweight

1.42 (1.04–1.93)

0.03

1.47 (1.07–2.00)

0.02

Moderate Obesity

1.26 (0.72–2.20)

0.42

1.34 (0.76–2.37)

0.31

Severe Obesity

2.46 (1.24–4.87)

0.01

2.80 (1.40–5.63)

0.004

Mood disorder

Underweight

1.15 (0.54–2.44)

0.72

1.06 (0.50–2.26)

0.87

Normal weight

Reference category

Overweight

1.08 (0.84–1.39)

0.55

1.07 (0.83–1.38)

0.60

Moderate obesity

1.10 (0.70–1.71)

0.68

1.06 (0.67–1.66)

0.81

Severe obesity

1.52 (0.80–2.88)

0.20

1.46 (0.76–2.80)

0.25

Anxiety disorder

Underweight

0.77 (0.19–3.14)

0.72

0.66 (0.16–2.70)

0.57

Normal weight

Reference category

Overweight

1.00 (0.67–1.50)

0.99

1.03 (0.69–1.55)

0.88

Moderate obesity

0.58 (0.23–1.44)

0.24

0.57 (0.23–1.43)

0.23

Severe obesity

0.69 (0.17–2.84)

0.61

0.72 (0.17–2.99)

0.65

Other behavioural disorder

Underweight

0 (NA)

0.97

0 (NA)

0.98

Normal weight

Reference category

Overweight

1.24 (0.65–2.36)

0.51

1.24 (0.65–2.39)

0.51

Moderate obesity

0.35 (0.05–2.55)

0.30

0.36 (0.05–2.68)

0.32

Severe obesity

1.03 (0.14–7.65)

0.97

1.10 (0.15–8.30)

0.93

Personality disorder

Underweight

0 (NA)

0.95

0 (NA)

0.95

Normal weight

Reference category

Overweight

0.96 (0.58–1.57)

0.86

1.01 (0.61–1.66)

0.98

Moderate obesity

1.77 (0.92–3.43)

0.09

1.76 (0.90–3.44)

0.10

Severe obesity

0.97 (0.23–4.01)

0.97

1.03 (0.24–4.31)

0.97

Intellectual disability

Underweight

2.13 (0.28–16.19)

0.47

1.88 (0.25–14.44)

0.54

Normal weight

Reference category

Overweight

2.49 (1.16–5.31)

0.02

2.43 (1.13–5.23)

0.02

Moderate obesity

1.66 (0.38–7.33)

0.50

1.52 (0.34–6.81)

0.59

Severe obesity

0 (NA)

0.98

0 (NA)

0.98

Suicide

Underweight

0 (NA)

0.96

0 (NA)

0.96

Normal weight

Reference category

Overweight

1.06 (0.57–1.96)

0.85

1.15 (0.62–2.13)

0.67

Moderate obesity

0.27 (0.04–1.97)

0.19

0.32 (0.04–2.35)

0.26

Severe obesity

0.79 (0.11–5.86)

0.82

1.01 (0.14–7.59)

0.99

  1. Model 1 is adjusted for sex and birth year of the child and gestation when weight was measured. Model 2 is adjusted also for maternal smoking and hypertensive disorders in pregnancy, maternal hospital-treated and self-reported mental disorders, age at delivery, parity and the social class of the family.
  2. NA not applicable.