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Table 1 Association of preterm delivery and elevated maternal serum uric acid levels with, obstetrical and medical characteristics of the studied population (n = 404)

From: Maternal hyperuricemia in normotensive singleton pregnancy, a prenatal finding with continuous perinatal and postnatal effects, a prospective cohort study

Characteristic

Mothers with high vs. normal uric acid values

Mothers with preterm vs. term delivery

PD (n = 72)

TD (n =332)

HU (n = 103)

NUA (n = 301)

N (%)

N (%)

N (%)

N (%)

Maternal age < 26 years

27 (37.5)

95 (28.6)*

42 (40.7)

80 (26.5)**

Primigravidity

31 (43.1)

114 (34.3)*

44 (42.7)

101 (33.5)*

BMI before pregnancy > 25

35 (48.6)

167 (50.3)

44 (42.7)

153 (50.8)

Gestational weight gain > 14 kg

35 (48.6)

129 (38.8)

42 (40.7)

103 (34.2)*

Prior history of preterm labor

8 (11.1)

11 (3.3)*

7 (6.7)

12 (3.9)

Prior history of miscarriage

20 (27.7)

81 (24.3)

21 (20.3)

81 (26.9)

Gestational anemia

4 (5.5)

19 (5.7)

7 (6.8)

16 (5.3)

Gestational diabetes

7 (9.7)

27 (8.1)

7 (6.8)

27 (9)

Maternal Cr > 1

12 (16.6)

36 (10.8)

22 (21.3)

26 (8.6)**

Maternal BUN > 30 mg/dl

10 (13.8)

28 (8.4)

15 (14.5)

22 (7.3)*

  1. PD: Preterm Delivery, TD: Term Delivery, HU: Hyperuricemia, NUA: Normal Uric Acid levels.
  2. *: P < 0.05 for the comparison between two groups with and without the specified characteristic, **: P < 0.01 for the comparison between two groups with and without the specified characteristic, BMI: Body Mass Index, Cr: serum creatinine (mg/dl), BUN: blood urea nitrogen (mg/dl).