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Table 1 Baseline maternal characteristics (before14 gestational weeks) among participants with or without GDM

From: An early model to predict the risk of gestational diabetes mellitus in the absence of blood examination indexes: application in primary health care centres

   Non-GDM (n=953)
mean (SD)/n(%)
GDM (n=186)
mean (SD)/n(%)
Z/χ2 p
Age,(year)   31.10(4.35) 32.22(4.77) -2.693 0.007
Height,(cm)   163.04(4.52) 163.11(4.73) -0.572 <0.568
Pre-pregnancy BMI,(kg/m2)   21.21(2.51) 22.62(3.38) -5.502 <0.001
Abdomen circumference at the first trimester,(cm)   79.08(6.06) 82.63(7.63) -6.096 <0.001
Systolic pressure,(mmHg)   115.06(10.18) 115.51(10.40) -1.087 0.277
Diastolic pressure,(mmHg)   71.17(7.11) 71.43(7.46) -0.620 0.535
Gravidity   1.88(1.00) 2.14(1.08) -3.210 0.001
Parity   0.47(0.52) 0.54(0.55) -1.415 0.157
Obstetric abnormality Yes 357(37.46) 80(43.01) 2.027 0.154
No 596(62.54) 106(56.99)   
Polycystic ovary syndrome Yes 55(5.77) 55(29.57) 101.024 <0.001
No 898(94.23) 131(70.43)   
Irregular menstruation Yes 746(78.28) 161(86.56) 6.578 0.010
No 207(21.72) 25(13.44)   
Family history of diabetes Yes 189(19.83) 61(32.80) 15.266 <0.001
No 764(80.17) 125(67.20)   
Gestational week at inclusion   15.41(2.99) 15.38(3.80) -0.769 0.442