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Table 1 Maternal Characteristics

From: Does hypoglycemia following a glucose challenge test identify a high risk pregnancy?

 

Groups

 
 

Hypoglycemic

(n = 436)

Controls

(n = 434)

P-value

Maternal age(1)

24.7 ± 5.4

25.9 ± 5.5

0.001

Race

   

   Caucasian

179 (41%)

204 (47%)

 

   African American

214 (49%)

187 (43%)

 

   Other

38 (9%)

38 (9%)

0.179

Primigravidas

149 (34%)

149 (34%)

0.941

Nulliparous

190 (44%)

200 (46%)

0.421

Height (in)(2)

65 (63 – 67)

64 (63 – 67)

0.931

Pre-pregnancy weight (lb)(2)

150 (129 – 180)

157 (135 – 190)

0.003

Pre-pregnancy BMI (2)

24.7 (21.8 – 29.5)

26.5 (22.9 – 32.3)

0.002

BMI

   

   <19

22 (7%)

15 (5%)

0.056

   19–30

232 (69%)

209 (63%)

 

   ≥30

82 (24%

107 (32%)

 

Pregnancy weight gain (lb)(2)

33.0 (22.0–43.0)

32.0 (20.0 – 43.5)

0.393

History of spontaneous preterm birth

30 (7%)

23 (5%)

0.330

Any pre-existing medical conditions

54 (12%)

23 (5%)

<0.001

   Chronic hypertension(3)

42 (78%)

19 (83%)

0.442

   Other conditions(3,4)

12 (22%)

4 (17%)

0.764

Any prenatal complications

79 (18%)

44 (10%)

<0.001

Preeclampsia/eclampsia

35 (8%)

10 (2%)

<0.001

Preterm Labor

19 (4%)

15 (4%)

0.600

Oligohydramnios

11 (3%)

1 (0.2%)

0.006

Unexplained elevation of MSFAP

4 (1%)

7 (2%)

0.384

Other prenatal complications(5)

19 (4%)

10 (2%)

0.130

Antepartum hospitalization

53 (12%)

26 (6%)

0.002

   Duration of stay (days)(2,3)

3 (3 – 7)

4 (3 – 4)

0.284

  1. (1) mean ± standard deviation shown; (2) medians and interquartile ranges (1st – 3rd quartile) are shown; (3) percentages for subsets of patients with condition present are shown; (4) other conditions include gestational diabetes (n = 3), sickle cell disease (n = 3), multiple sclerosis (n = 3), PPROM (n = 1), lupus APA syndrome (n = 1), protein C deficiency (n = 1), renal disease (n = 1), seizure disorder (n = 1), ulcerative colitis (n = 1) and FV Leiden (n = 1); (5) GHTN (n = 7), PPROM (n = 4), gestational diabetes (n = 4), placenta praevia (n = 3), pyelonephritis (n = 3), 2 vessel cord (n = 3), DVT (n = 1), PE (n = 1), cholestasis (n = 1), cerclage (n = 1) and gastroschisis (n = 1).