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Table 1 Demographics and clinical characteristics of cases and controls

From: Association of adiponectin gene variants with idiopathic recurrent miscarriage according to obesity status: a case–control study

  Casesa Controlsa P b
Age at inclusion in studyc 31.6 ± 5.4 31.6 ± 4.9 0.94
Body-mass index (kg/m2)c 26.3 ± 5.4 25.2 ± 4.3 0.004
Obesity [n (%)]d 58 (19.6) 37 (12.1) 0.02
Smokers [n (%)]d 30 (10.1) 32 (10.8) 0.69
Systolic blood pressure (mmHg)c 114.2 ± 11.9 120.2 ± 17.0 < 0.001
Diastolic blood pressure (mmHg)c 72.0 ± 8.4 75.8 ± 9.1 < 0.001
Glucose (mmol/L)c 5.1 ± 0.9 5.2 ± 0.7 0.55
Menarche (years)c 12.2 ± 1.1 12.8 ± 1.0 < 0.001
Number of pregnanciesc 4.2 ± 1.5 4.0 ± 1.1 0.11
Number of childrenc 0.8 ± 1.1 4.0 ± 1.1 < 0.001
Miscarriagesc 3.6 ± 1.0 0.0 ± 0.1 < 0.001
  1. aA total of 308 RPL cases and 310 control women were included
  2. bStudent’s t-test (continuous variables), Pearson’s χ2 test (categorical variables)
  3. cMean ± SD
  4. dPercent of total within each group/subgroup