Journal of Pregnancy / 2015 / Article / Tab 1

Research Article

Association between Prenatal One-Hour Glucose Challenge Test Values and Delivery Mode in Nondiabetic, Pregnant Black Women

Table 1

Study participant characteristics (), by delivery mode.

Maternal/delivery characteristics Vaginal delivery (; 66.5%)C-section delivery (; 33.5%)
Mean ± SD or (%)Mean ± SD or (%)

Age at study visit (years) 25.9 ± 6.126.1 ± 5.60.825
Prepregnancy BMI (kg/m2)27.2 ± 6.731.4 ± 7.3
Prepregnancy BMI category
 Underweight6 (5.7%)1 (1.9%)
 Normal weight37 (35.2%)12 (22.6%)
 Overweight35 (33.3%)8 (15.1%)
 Obese27 (25.7%)32 (60.4%)
Education (years)12.8 ± 1.812.9 ± 1.40.888
Annual household income ($)a31,676.5 ± 26,213.636,770.5 ± 36,069.50.351
Marital status 0.189
 Married/living as married21 (20.0%)16 (30.2%)
 Separated/divorced3 (2.9%)0 (0.0%)
 Never married81 (77.1%)37 (69.8%)
Nulliparous47 (44.8%)29 (54.7%)0.237
Smoked during pregnancy9 (8.6%)4 (7.5%)0.545
Previous C-section3 (2.9%)15 (28.3%)
Labor induced/augmented78 (76.5%)28 (52.8%)0.003
Previous GDM1 (1.0%)1 (1.9%)0.560
Continuous mean 1-hour GCT value (mg/dL)102.4 ± 21.5107.8 ± 20.70.130
Gestational age at GCT (weeks)25.9 ± 5.025.6 ± 6.90.802
Preeclampsia5 (4.8%)6 (11.3%)0.126
Unplanned C-sectionN/A37 (69.8%)N/A
Breech presentation0 (0.0%)2 (3.8%)N/C
Birth weight (g)d3195.7 ± 509.53109.5 ± 703.20.387
Birth weight -scoree−0.49 ± 0.90−0.50 ± 0.900.925
Low birth weightd7 (6.9%)7 (13.5%)0.151
Infant male genderb46 (43.8%)29 (54.7%)0.210
Gestational age at delivery (weeks)e39.1 ± 1.838.7 ± 3.20.254
Preterm birthc6 (5.7%)6 (11.3%)0.177

88 (vaginal delivery) and 46 (C-section) with complete information.
b102 (vaginal delivery) and 52 (C-section) with complete information.
c104 (vaginal delivery) with complete information.
d101 (vaginal delivery) and 52 (C-section) with complete information.
e101 (vaginal delivery) and 51 (C-section) with complete information.
Statistically significant result ().
N/C: not calculable due to empty cells.