Birth weight concerning obesity and diabetes gene expression in healthy infants; a case-control study

Table 2 Basic characteristics of infants based on the birth weight

Variables	Normal weight	Low birth weight	P1
Variables	(n = 137)	(n = 78)	P1
Gender, boy %	54	51.3	0.403
Preterm, %	0	83.3	< 0.001
Food kind, %
Breast feeding	34.3	30.8	0.09
Formula	35	24.4	0.09
Mixed	30.7	44.9
Birth weight, kg	3.18 ± 0.27*	1.79 ± 0.48	< 0.001
Birth height, cm	51.87 ± 3.71	42.92 ± 5.30	< 0.001
Head circumference, cm	33.69 ± 2.49	28.54 ± 2.85	< 0.001
Current weight, kg	7.87 ± 0.83	6.43 ± 1.4	< 0.001
Mother age, years	27.29 ± 5.86	28.41 ± 6.32	0.186
Mother weight before pregnancy, kg	69.7 ± 10.09	75.26 ± 13.13	0.359
Pregnancy weight gain, kg	14.18 ± 4.05	9.47 ± 8.63	< 0.001
Mother BMI, kg/m²	26.62 ± 4.09	25.74 ± 4.01	0.746
Father BMI, kg/m²	26.17 ± 3.14	26.12 ± 3.04	0.739
Mother smoking, %	2.2	0	0.257

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