The relationship between pregnancy weight gain and birth weight of new born

Background: Maternal weight gain is one of the most important independent predictors of infant birth weight.  It is stated that under nutrition during pregnancy and low birth weight increase the risk for diabetes and cardiovascular disease in adulthood. Normal weight gain of pregnancy 11kg weight gain should be according to pre-pregnancy BMI.  Patients with BMI > 25 should gain weight of 7kg patient with normal BMI should gain 11kg weights.Methods: This is a hospital based prospective study and was conducted in the Department of Obstetrics and Gynaecology, RNT Medical college Udaipur from November 2018 to March 2019  to find association between maternal weight gain and birth weight. Exclusion criteria included congenital malformations, multiple pregnancy, polyhydraminos, preeclampsia, diabetes, cardiovascular, kidney disease, RH negative pregnancy. Results were calculated by percentage.Results: excessive weight gain during pregnancy increases baby weight. Out of total 100 cases, 88 (88%) cases are Hindus and 12 (12%) cases are Muslims. Out of total 100 cases 72 cases (72%) belong to urban, 28 (28%) belong to Rural area. Out of 100 patients 32 patients gain weight less than 11kg among which 16 newborn have weight less than 2.5kg, 68 patients have weight gain more than 11kg and 67 have baby weight more than 2.5kg.Conclusions: Excessive maternal weight gain during pregnancy increases birth weight. In view of the apparent association between high birth weight and adult adiposity, an advantageous time to initiate obesity prevention efforts may be during pregnancy.

Pattern of pregnancy weight gain in homozygous sickle cell disease and effect on birth size / Patrones de ganancia de peso gestacional y tamaño al nacer en los casos de anemia de células falciformes

OBJECTIVES: To assess pregnancy weight gain and newborn anthropometry in mothers with homozygous sickle cell (SS) disease and normal controls. METHODS: An eleven-year retrospective review at the University Hospital of the West Indies, Kingston, Jamaica, revealed 128 singleton deliveries in women with SS disease who were matched by maternal age and birth date with 128 controls with a normal AA phenotype. Restriction to those commencing antenatal care before 16 weeks gestation resulted in the final study group of 80 SS patients and 115 AA controls. Weight and height were measured at first antenatal visit and weight at 20, 25, 30, 35 and 38 weeks gestation. Longitudinal regression used mothers'weight as the outcome, genotype as a predictor and gestational age as a random effect. Regression analyses ofmaternal weight on childhood anthropometry were repeated in separate maternal genotypes. Neonatal indices included gestational age, birthweight, head circumference and crown-heel length. RESULTS: Mothers with SS disease had lower weight and body mass index at first antenatal clinic visit (p < 0.001). Total weight gain was 6.9 kg for SS women and 10.4 kg for AA controls (p < 0.001) and weekly weight gain 0.263 kg (95% CI 0.224, 0.301) and 0.396 kg (95% CI 0.364, 0.427) respectively. A significant relationship occurred between birthweight and maternal weight gain at 25-30 weeks gestation in AA controls but this relationship appears delayed in SS disease. CONCLUSION: Different patterns of maternal weight gain in SS mothers and normal controls may have significance for the lower birthweight in SS mothers.

OBJETIVO: Evaluar la ganancia de peso gestacional y la antropometría neonatal en madres con anemia de células falciformes (CF) homocigóticas y en controles normales. MÉTODO: Un examen retrospectivo de once años en el Hospital Universitario de West Indies West Indies, Kingston, Jamaica, reveló la ocurrencia de 128 partos únicos (e.d. de un solo bebé) en mujeres con la enfermedad de CF, que fueron comparadas sobre la base de la edad materna y la fecha de nacimiento, con 128 controles de fenotipo AA normal. A partir de restricciones a las gestantes que comenzaron el cuidado prenatal antes de las 16 semanas de gestación, se llegó finalmente al grupo de estudio de 80 pacientes con CF y 115 controles con AA. El peso y la altura se midieron en la primera visita prenatal, y el peso a las 20, 25, 30, 35 y 38 semanas de gestación. La regresión longitudinal usó el peso de las madres como resultado, el genotipo como predictor, y la edad gestacional como efecto aleatorio. Los análisis de la regresión de peso materno sobre la antropometría fueron repetidos en genotipos maternos separados. Los índices neonatales incluyeron la edad gestacional, el peso al nacer y la circunferencia cefálica. RESULTADOS: Las madres con la enfermedad de CF tenían más bajo peso e índice de masa corporal en la primera visita clínica prenatal (p < 0.001). La ganancia de peso total fue 6.9 kg para las mujeres con CF y 10.4 kg para los controles AA (p < 0.001) y la ganancia de peso semanal 0.263 kg (95% CI 0.224-0.301) y 0.396 kg (95% CI 0.364-0.427) respectivamente. Una relación significativa tuvo lugar entre el peso al nacer y la ganancia de peso materna en las semanas 25-30 de gestación en los controles AA, pero esta relación parece demorada en la enfermedad de CF. CONCLUSION: Los patrones diferentes de ganancia de peso materno en las madres con CF y los controles normales, pueden tener importancia significativa para las madres con CF.

Risk Factors Affecting the Health of Pregnant Women and Fetus / 대한지역사회영양학회지

The aim of this study was to determine the predictors of desirable pregnancy outcomes. The subjects were 795 pregnant women participating in the 2007 Mom and Baby Expo. They were grouped by gestational age: group I (3-12 wk: n = 95), group II (13-25 wks: n = 263) and group III (26-42 wks: n = 437). We collected data for general characteristics, sociocultural factors, life styles and nutrient intakes. We also collected pregnancy outcome data of 634 pregnant women including birth weight, maternal weight gain and gestational age. Dietary intakes of the subjects were estimated by Food Frequency Questionnaire. folate, iron and calcium intakes from foods of pregnant women were 88%, 79% and 58% of KDRIs, respectively. Bivariate analysis showed that birth weight was significantly associated with pre-pregnancy BMI, maternal weight gain, maternal age, gestational age and intakes of iron, potassium, vitaminB1, B6, fatty acids, MUFA. And also, bivariate analysis showed that maternal weight gain was significantly associated with pre-pregnancy BMI, maternal age, gestational age and intakes of energy, potassium. Further multivariate analyses suggest that vitaminB6 may be a significant predictor for low birth weight and energy intake and maternal age for maternal weight gain. Our findings suggest that dietary and lifestyle interventions during pregnancy can improve maternal and infant pregnancy outcomes. Prepregnancy weight control and intakes of energy and vitamin B6 need to be taken into considerations in developing strategic prenatal care programs to promote desirable pregnancy outcome.

The influence of maternal weight gain to birth weight / 대한산부인과학회지

OBJECTIVE: Birth weight of the newborns is the major factor affecting maternal, childhood mortality and morbidity. The purpose of this study was to identify the effects of maternal weight gain and Body Mass Index (BMI) gain by trimester of pregnancy on birth weight of newborns. METHODS: The data of 73 women who delivered at our institute from March 2004 to June 2004 were analyzed. Maternal weight gain and BMI gain during pregnancy was calculated. Statistical analysis was done. RESULTS: The standardized woman in 1.6 m height had total 12.5 kg weight gain during pregnancy. The BMI was calculated. Women with total BMI gain over 4.88 were grouped in over BMI group. The BMI gain by trimester and gestational age of pregnancy were analyzed. Maternal BMI gain in the 3rd trimester of pregnancy influences more strongly newborns' weight than does in the 1st or 2nd trimester. CONCLUSION: We considered that maternal BMI gain during each trimester of pregnancy was a marker of newborns' weight gain.

The Effect of Prepregnancy Body Mass Index and Weight Gain during Pregnancy on Infant Birth Weight

BACKGROUND: To examine the effect of weight gain during pregnancy and prepregnancy body mass index on infant birth weight in normal term pregnancy. METHODS: We analyzed the weight data from 501 women who were in healthy singleton term pregnancy in a general hospital in Seoul from Jan. 2001 to Jun. 2001. Among the 501 women, 209 women whose data were available to calculate weight gain in every trimester were chosen. To study the effect of maternal weight gain on infant birth weight, multiple regression analysis, controlled for selected covariables, was carried out on the entire sample and on each prepregnancy weight group. RESULTS: In all the subjects both prepregnancy body mass and weight gain significantly influenced birth weight. For the lower and normal BMI, each kilogram of maternal weight gain significantly increased birth weight. CONCLUSION: These observations supports the recent evidence for the association between maternal weight gain and birth weight, but only for woman whose prepregnancy BMI are lower and normal. High maternal prepregnancy BMI did not have any influence of weight gain on birth weight.

The Association of Maternal Body Mass Index with Birth Weight and Cesarean Delivery / 대한산부인과학회잡지

OBJECTIVES: The aim of this study was to evaluate the correlations of pre-pregnancy maternal BMI(body mass index), and weight gain during pregnancy with Birth weight and Cesarean delivery in full term infants. METHODS: We collected data from 1086 pregnancies without complications, and analysed pre-pregnancy maternal BMI, weight gain during pregnancy, and the incidences of SGA(small-for-gestational age), LGA(large-for-gestational age), cesarean delivery. Chi-square test, T-test, and One way Anova test were performed for stastatical analysis. RESULTS: In pre-pregnancy maternal BMI 26.0kg/m2 group, 0%, 23.6% and 36.4% respectively(p<0.05). In under weight gain during pregnancy group, incidence of SGA was 13.4%, LGA 4.7% and cesarean delivery 15.7% respectively, but in high weight gain group, 4.8%, 19.5% and 21.0% respectively(p<0.05). CONCLUSION: There was significant correlations among pre-pregnancy maternal BMI, weight gain during pregnancy, birth weight and cesarean delivery. From these results, it is considered that antenatal maternal BMI and weight gain during pregnancy are valuable to predict birth weight and cesarean delivery.

Prepregnancy weight, maternal weight gain, and birth weight

BACKGROUND: Low birth weight and high birth weight are closely related to perinatal complications. The purpose of this study is to estimate the association of prepregnancy weight, maternal weight gain and infant birth weight. METHODS: The effect on birth weight in 724 live births after 38~42 weeks gestation was studied at Taegu Medical Center, between January, 1997, and August, 1998. Pregnant women with hypertension, diabetes mellitus, multiple pregnancy and drug abuse were excluded because of their possible influence on birth weight. To study the effect on infant birth weight, multiple regression analysis was carried out. RESULTS: We evaluated 724 pregnant women and their babies. Mean prepregnancy weight was 52.2+/-.9kg, mean maternal weight gain was 13.0+/-.6kg, and mean BMI(Body Mass Index) was 20.5+/-2.5kg/m(2). Mean gestational age was 278+/-7.3days and mean birth weight was 3,320.5+/-405.2gm. Correlation coefficient between birth weight and prepregnancy weight was 0.347(p<0.01), and maternal weight gain was 0.248(p<0.01), and BMI(Body Mass Index) was 0.261(p<0.01). Birth weight was significantly correlated with prepregnancy weight(p<0.01) and maternal weight gain(p<0.01), but prepregnancy weight was not significantly correlated with maternal weight gain(p<0.05). Prepregnancy weight had most apparent influence on birth weight. CONCLUSIONS: Prepregnancy weight and maternal weight gain was positively related to birth weight. These results suggest that there are good effects of properly controlling prepregnancy weight and maternal weight gain in pregnant women and their babies.

Maternal Weight Gain Pattern and Birth Weight / 영남의대학술지

Maternal weight gain during pregnancy has been consistently associated with infant birth weight and pregnancy outcome. Our purpose was to determined the relationship between maternal weight gain pattern and birth weight. Consequently, maternal weight gain is monitored carefully and is encouraged during prenatal care in order to improve pregnancy outcome. Our study group included both 424 uncomplicated women and infant delivered at the Yeungnam University Hospital between 1993-1996. All recorded prenatal weight gain measurements were used to estimate maternal trimester weight gain, pattern of gain (based on low versus not-low gain at each trimester), and total gain at delivery. Multiple linear regression analysis was used to assess the relationship between these weight gain measurements and fetal birth weight. Each kilogram of maternal gain in the first, second, and third trimesters was associatedwith statistically related to the increase in fatal birth weight by 31.3, 19.0, and 24.5g, respectively. When compaired with the pattern of gain that was not low in any trimester, patterns with low gain in the first trimesters were associated with significant decreases in birth weight, but no important change in birth weight was seen for the group whose gains were not low in the first trimester. The results suggest that specific patterns of maternal weight gain, particularly weight gain during the first trimester, are related to fetal birth weight.