EFFECT OF INCOME ON FETAL BIOMETRY BY ULTRASOUND
Keywords:
Fetal biometry, ultrasoundAbstract
Objective : To compare gestational age corrected fetal biometry among rich and poor women.
Methods: An ultrasound database from August 2000 to January 2001 was used for the purpose of this study. One hundred seventy five patients with certain menstrual history were included. Patient’s income was assigned based on their report during the initial evaluation. There were 137 rich and 38 poor women. All data were entered into statistix 7.0 statistical package and analysed using appropriate statistical tests. Probability values less than 5% were considered significant.
Results : Multiple regression analysis using a 2nd order model for gestational age as a function of fetal biometry, income, and fetal biometry-interaction did not show income to alter the relationship between gestational age and fetal biometry except for lengths. Ninety-five percent prediction intervals for gestational age did not show clinically significant difference between rich and poor.
Conclusion : We have shown that fetal biometry is similar in rich and poor mothers, except the femur length which is a bit less than expected in the poor group. These differences are small, yet the may influence the outcome of antenatal care. Further study is necessary to determine the significance of income on fetal biometry.
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