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Table 1 Study population demographics (mean ± SD) N = 6,161

From: Cardio-metabolic risk in 5-year-old children prenatally exposed to maternal psychosocial stress: the ABCD study

Maternal characteristics Birth characteristics
Age (years) 31.0 (± 5.1) Gender (% girls) 50.1%
Pre-pregnancy BMI (kg/m2) 23.0 (± 3.6) Gestational age (weeks) 39.8 (± 1.7)
Educational level (years after primary school) 9.1 (± 3.9) % Preterm birth (<37 weeks) 4.9%
% Primipara 55.6% Birthweight (g) 3452 (± 550)
Ethnicity   % Small for gestational age 11.8%
% Dutch 69.2%   
% Surinamese 5.0%   
% Turkish 3.4%   
% Moroccan 6.1%   
% Other non-western 9.4%   
% Other western 6.9%   
Smoking during pregnancy    
% Not smoking 90.3%   
% 0-5 cigarettes/day 6.3%   
% 6 or more cigarettes/day 3.4%   
% Consuming alcohol 22.9%   
  1. Characteristics of pregnant women and births in the Amsterdam Born Children and their Development (ABCD) Study (the Netherlands)