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Table 1 Characteristics of placenta samples were assessed on the Illumina Infinium Array

From: Identification of diagnostic biomarkers in patients with gestational diabetes mellitus based on transcriptome gene expression and methylation correlation analysis

CharacteristicCases (n = 41)Controls (n = 41)p-value
Pre-pregnancy BMI (kg/m2)26.653 (5.733)26.410 (5.422)p = 0.7635
Maternal Age (years)33.171 (4.652)33.487 (4.853)p = 0.7635
Gravidity  p = 0.3891
 18 (19.51%)4 (9.76%) 
 211 (26.83%)16 (39.02%) 
 313 (31.71%)10 (24.39%) 
  > 48 (19.51%)11 (26.83%) 
Smoke during Pregnancy
 No38 (92.683%)38 (92.683%)p = 1
 Yes3 (7.317%)3 (7.317%) 
Infant Sex
 Males20 (48.78%)21 (48.78%)p = 1
 Females21 (51.22%)20 (51.22%) 
Ethnicity
 Non-Hispanic White23 (56.098%)23 (56.098%)p = 0.9437
 Hispanic or Latino5 (12.195%)4 (9.756%) 
 Asian/Pacific Islander7 (17.073%)6 (14.634%) 
 Black/African-American6 (14.634%)8 (19.512%) 
Conception
 Spontaneous planned24 (58.537%)24 (58.537%)p = 1
 Spontaneous unplanned12 (29.268%)12 (29.268%) 
 Ovulation-induction drug2 (4.878%)2 (4.878%) 
 IVF3 (7.317%)3 (7.317%) 
 Gestational Age (weeks)39.077 (0.932)39.206 (1.047)p = 0.5576