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Risk factors for term small for gestational age infants in women with low prepregnancy body mass index
Hiroko Watanabe1, Kazuko Inoue, Masako Doi
1Clinical Nursing, Maternity Nursing and Midwifery, Shiga University of Medical Science, Otsu, Shiga, Japan. watana@belle.shiga-med.ac.jp
Aim:
The purpose of our study was to investigate the association between low maternal prepregnancy body mass index (BMI) less than 18.5 kg/m(2) and the incidence of small for gestational age (SGA) infants.
Material & Methods:
This was a cross-sectional study. The women with BMI of less than 25.0 kg/m(2) who gave birth to single term infants (37-42 weeks) at clinics and hospitals in the Tokyo metropolitan area between 2003 and 2004 were analyzed for risk factors for SGA.
Results:
Five hundred and seventy-two women were underweight (BMI < 18.5 kg/m(2)) and 2708 (75.1%) were normal (18.5
Conclusion:
We conclude that the detrimental effect of low prepregnancy BMI in Japanese women on birthweight and incidence of SGA infants. Our findings suggest that appropriate maternal BMI at conception followed by adequate weight gain during pregnancy may have a substantial influence on reducing the SGA infants and increasing the birthweight.
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