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Table 1 The characteristics of the mothers in the H. pylori-seropositive and seronegative groups

From: Maternal H. pylori seropositivity is associated with gestational hypertension but is irrelevant to fetal growth and development in early childhood

Variable, mean ± SD or number (%)Serum H. pylori IgGp value
Seropositive (n = 25)Seronegative (n = 81)
Maternal age (years)31.0 ± 4.032.1 ± 3.80.20
Maternal body height (cm)159.5 ± 5.5159.9 ± 4.40.70
Maternal pre-pregnancy body weight (kg)52.2 ± 5.955.5 ± 8.20.06
Maternal pre-pregnancy BMI (kg/m2)20.6 ± 2.521.7 ± 3.10.09
Household size (person)3.8 ± 1.73.7 ± 1.80.69
Annual household income  0.79
 Lowa7 (28.0)25 (30.9) 
 Middle/High18 (72.0)56 (69.1) 
Educational attainment  0.68
 Low/Middleb1 (4.0)8 (11.1) 
 High24 (96.0)73 (67.9) 
Housewife5 (20.0)25 (30.9)0.45
Primigravida18 (72.0)48 (59.3)0.25
Smoking0 (0.0)1 (1.2)1.00
Alcohol3 (12.0)5 (6.2)0.39
Gestational age (weeks)38.5 ± 1.038.8 ± 1.10.26
Placental weight (g)505.2 ± 65.3508.5 ± 47.40.79
Hemoglobin (g/dL)11.9 ± 1.711.9 ± 1.40.98
Pregnancy-induced hypertension3 (12.0)1 (1.2)0.04
Preeclampsia0 (0.0)0 (0.0)1.00
Bleeding at early gestation0 (0.0)2 (2.5)1.00
  1. aAnnual household income < 16,200 USD
  2. bEducational attainment below bachelor level