Associations between the maternal circulating lipid profile in pregnancy and fetal imprinted gene alleles: a cohort study

Table 1 Characteristics of the study participants drawn from the Cambridge Baby Growth Study

Characteristic	Discovery Cohort (n = 200)	Validation Cohort (n = 567)	p-value
Age at delivery (years)	33.4 (32.8, 34.0)	33.2 (32.8, 33.6)	0.6
Gestational age at delivery (weeks)	40.1 (39.9, 40.3)	39.8 (39.7, 40.0)	0.02
Parity (n)	1.7 (1.6, 1.8)	1.7 (1.6, 1.8)	0.6
Pre-pregnancy BMI (kg/m²)	23.9 (23.2, 24.6)	24.2 (23.8, 24.6)	0.5
Weight gain during pregnancy (kg)	9.2 (8.0, 10.4)	9.0 (8.2, 9.7)	0.8
Week 28 OGTT fasting glucose concentration (mmol/L)	4.3 (4.2, 4.4)	4.3 (4.3, 4.3)	0.9
Week 28 OGTT 60 min. glucose concentration (mmol/L)	6.4 (6.2, 6.7)	6.6 (6.5, 6.8)	0.1
Week 28 fasting insulin concentration (pmol/L)	44.9 (41.7, 48.4)	45.6 (43.7, 47.6)	0.7
Week 28 fasting insulin resistance (HOMA IR)	0.915 (0.850, 0.985)	0.925 (0.886, 0.965)	0.8
Carrying a male fetus (%)	49.2	52.6	0.4
Smoking during pregnancy (%)	2.6	4.9	0.2

Data are mean (95% confidence interval) or counts (%) for those study participants where the information was available. Categorical data was assessed using the χ² test, all other testing was performed using linear regression

ISSN: 1477-7827