Table 1

Maternal characteristics associated with consumption of organic food among 28 192 pregnant women in the Norwegian Mother and Child Cohort Study 2002–2008

Consumption of any organic food group, (sum index)
n (%)Low
25 699 (91.2)
Frequent
2493 (8.8)
Mean±SDMean±SD
Maternal age, years28.6±4.327.6±4.9**
Maternal body mass index23.8±4.123.3±3.9**
Gestational weight gain, kg15.2±6.015.5±6.5†
Energy intake, MJ/day9.51±2.510.0±2.9**
Per centPer cent
Maternal education ≤12 years25.537.7**
Maternal education 17+years27.128.6*
Smoking in pregnancy‡6.611.0**
High household income§29.723.1**
Alcohol in pregnancy (yes/no)9.39.3
Hypertension prior to pregnancy (yes/no)0.50.2*
High score ‘healthy’ food pattern¶ (yes/no)36.050.2**
  • Independent samples t test (continuous variables), χ2 (categorical variables): *p<0.05, **p<0.001, †0.05>p<0.01.

  • ‡Comprise occasional and daily smoking.

  • §High income denotes that both participant and her partner have annual income ≥300 000 NOK.

  • ¶High score denotes upper third on pattern scores. The food pattern is described in detail in Torjusen et al.33