Skip to main content

Table 2 Maternal characteristics in the subsequent pregnancy (N = 142)

From: Frequency and risk factors for recurrent gestational diabetes mellitus in primiparous women: a case control study

Variables Recurrent GDM
N = 78
Primary GDM
N = 64
Unadjusted OR
(95% CI)
p value
Age (years) 32.6 ± 0.3 31.9 ± 0.4 1.09 (0.97–1.21) 0.144
Prepregnancy weight (kg) 59.0 ± 1.2 57.2 ± 1.0 1.02 (0.99–1.06) 0.259
Prepregnancy BMI (kg/m2) 22.9 ± 0.4 21.7 ± 0.3 1.12 (1.00–1.25) 0.043*
Weight change between pregnancies (kg) a 0.7 ± 0.7 −0.3 ± 0.7 1.04 (0.96–1.14) 0.340
Interpregnancy intervals (months) 22.6 ± 1.1 19.9 ± 1.3 1.03 (0.99–1.06) 0.135
Biochemical parameters in first-trimester (weeks) 12.7 ± 0.2 12.6 ± 0.2   
Fasting plasma glucose (mmol/L) 4.76 ± 0.07 4.61 ± 0.05 1.87 (0.93–3.74) 0.078
HbA1c (%)b 5.2 ± 0.0 5.1 ± 0.0 5.06 (1.45–17.64) 0.011*
HbA1c (mmol/mol) 34 ± 0 32 ± 0 1.16 (1.04–1.30) 0.011*
Cholesterol (mmol/L) 5.11 ± 0.11 5.00 ± 0.10 1.14 (0.79–1.64) 0.486
Triglyceride (mmol/L) 1.92 ± 0.10 1.53 ± 0.07 2.04 (1.23–3.36) 0.005*
HDL-C (mmol/L) 1.57 ± 0.04 1.70 ± 0.05 0.38 (0.14–1.01) 0.052
LDL-C (mmol/L) 3.28 ± 0.10 3.09 ± 0.10 1.35 (0.88–2.09) 0.172
  1. Variables are presented with mean ± standard error (SE) unless number (percentage)
  2. GDM gestational diabetes mellitus, OR odds ratio, CI confidence interval, BMI body mass index, HbA1c glycated hemoglobin, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol
  3. a Weight change between pregnancies: 32.4% missing
  4. b HbA1c: 4.2% missing