Accuracy of Fetal Weight Estimation by Ultrasonographic Evaluation in a Northeastern Region of India

Background and Objectives. Fetal weight evaluation in utero is a significant component in obstetric practices. The present study aims to estimate the fetal weight (EFW) by evaluating two available formulas using ultrasound parameters and comparing them with actual birth weight (ABW) after delivery. The accuracy and efficacy of both EFW formulas in detecting intrauterine growth retardation (IUGR) and macrosomia were also compared in our local sample of the population. Methods. The cross-sectional study included 100 pregnant women aged 20–45 years from the Kamrup district admitted to Guwahati Medical College and Hospital, Guwahati, Assam. The data were analyzed using Microsoft Excel and SPSS version 16. The EFW at term was calculated using Shepard’s formula and Hadlock’s formula. Differences in means are compared using the one-way ANOVA or Kruskal–Wallis test and paired t-test. The accuracy of the two procedures was evaluated using mean absolute error (MAE) and mean absolute percentage error (MAPE). A p value<0.05 was considered significant. Results. The present study included 100 pregnant women aged 21–38 years with term or postterm pregnancies subjected to ultrasonographic evaluation within 72 hours of delivery. The mean (±s.d.) EFW by Shepard’s formula was 2716.05 (±332.38) g and Hadlock’s formula was 2740.44 (±353.23) g, respectively. For Hadlock’s formula, MAE ± s.d. was found to be higher (overall 84.59 ± 76.54) specifically in the weight category less than 2500 (106.42 ± 88.11) as compared to Shepard’s (overall MAE ± s.d = 79.86 ± 64.78, and among ABW < 2500 g, MAE ± s.d = 65.04 ± 61.02). The overall MAPE of Hadlock’s formula was 3.14% and that for Shepard’s formula was 2.91%, and the difference was not statistically significant. Both Shepard’s formula and Hadlock’s formula had a sensitivity of 92.85% in detecting IUGR, but Hadlock’s method had higher specificity (66%), higher PPV (86.67%), and higher NPV (80%). Conclusion. The ultrasonographic evaluation of fetal weight helps predict fetal birth weight precisely and can influence obstetric management decisions concerning timing and route of delivery, thus reducing perinatal morbidity and mortality.

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Sonographic estimation of foetal weight versus actual birth weight at term

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20211491 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1782

Author(s):

Akinshola A. Ero-Phillips ◽

Faosat O. Jinadu ◽

Abimbola T. Ottun ◽

Ayokunle M. Olumodeji

Keyword(s):

Birth Weight ◽

Pregnant Women ◽

Predictive Value ◽

Cross Sectional Study ◽

University Teaching ◽

Percentage Error ◽

State University ◽

Singleton Pregnancy ◽

Cross Sectional ◽

Delivery Accuracy

Background: Estimated foetal weight is very critical to decision making in the management of pregnant women. It is therefore important to evaluate the accuracy of ultrasound estimated foetal weight (USEFW) at term in our environment. We compared ultrasound estimated foetal weight at term with the actual foetal birth weight at delivery.Methods: This was a prospective, comparative cross-sectional study at the Lagos State University Teaching Hospital over a 6-month period. Four hundred and five pregnant women with normal singleton pregnancy, who had sonographic estimation of foetal weight at term, using the Hadlock IV formula, were followed up and had their actual birth weight (ABW) determined at delivery. Accuracy was determined by proportion of estimates within 10% of actual birth weight and mean absolute percentage error (MAPE). The p<0.05 was considered significant at 95% confidence interval.Results: The prevalence of macrosomia was 10.3%. At 10% margin of error, ultrasound accurately estimated the weights of 73.3% of babies. The mean USEFW was 3559.89±316.9g and mean ABW was 3477.42±422.9g with a mean difference of 82.44g (p<0.001) and MAPE of 7.11. There was positive correlation (r=0.669) between the EFW and ABW (p<0.001). The USEFW had a sensitivity of 66.7%, specificity of 91.5%, positive predictive value of 47.5% and negative predictive value of 96.0% in predicting macrosomia.Conclusions: Ultrasound estimation of foetal weight at term is reliably accurate in predicting actual birth weight in south-western Nigeria.

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Observer Influence with Other Variables on the Accuracy of Ultrasound Estimation of Fetal Weight at Term

Medicina ◽

10.3390/medicina57030216 ◽

2021 ◽

Vol 57 (3) ◽

pp. 216

Author(s):

Mariola Sánchez-Fernández ◽

Maria E. Corral ◽

Longinos Aceituno ◽

Marina Mazheika ◽

Nicolás Mendoza ◽

...

Keyword(s):

Absolute Error ◽

Cross Sectional Study ◽

Fetal Weight ◽

Percentage Error ◽

Time Interval ◽

Cross Sectional ◽

Absolute Percentage Error ◽

Maternal Morbidity And Mortality ◽

Simple Error ◽

Error Percentage

Background and Objectives: The accuracy with which the estimation of fetal weight (EFW) at term is determined is useful in order to address obstetric complications, since it is a parameter that represents an important prognostic factor for perinatal and maternal morbidity and mortality. The aim of this study was to determine the role of the experienced observers with other variables that could influence the accuracy of the ultrasound used to calculate EFW at term, carried out within a period of seven days prior to delivery, in order to assess interobserver variability. Materials and Methods: A cross-sectional study was performed including 1144 pregnancies at term. The validity of the ultrasound used to calculate EFW at term was analyzed using simple error, absolute error, percentage error and absolute percentage error, as well as the percentage of predictions with an error less than 10 and 15% in relation to maternal, obstetric and ultrasound variables. Results: Valid predictions with an error less than 10 and 15% were 74.7 and 89.7% respectively, with such precision decreasing according to the observer as well as in extreme fetal weights. The remaining variables were not significant in ultrasound EFW at term. The simple error, absolute error, percentage error and absolute percentage error were greater in cases of extreme fetal weights, with a tendency to overestimate the low weights and underestimate the high weights. Conclusions: The accuracy of EFW with ultrasound carried out within seven days prior to birth is not affected by maternal or obstetric variables, or by the time interval between the ultrasound and delivery. However, accuracy was reduced by the observers and in extreme fetal weights.

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Comparison of ultrasonographic estimated fetal weight and actual birth weight.

The Professional Medical Journal ◽

10.29309/tpmj/2021.28.10.6385 ◽

2021 ◽

Vol 28 (10) ◽

pp. 1428-1432

Author(s):

Summan Hameed ◽

Zobia Saleem ◽

Mehwish Rauf ◽

Tayyaba Aslam ◽

Aqsa Hafeez ◽

...

Keyword(s):

Birth Weight ◽

Pregnant Women ◽

Cross Sectional Study ◽

Fetal Weight ◽

P Value ◽

Cross Sectional ◽

Actual Weight ◽

Significant Difference ◽

Minimum Age ◽

Estimated Fetal Weight

Objective: To determine the accuracy of estimated fetal weight by ultrasound compared with actual birth weight. Study Design: Cross Sectional study. Setting: Department of Radiology, Fatima Memorial Hospital, Lahore. Period: September 2017 to January 2018. Material & Methods: A sample of 139 pregnant women who fulfilled the inclusion and exclusion criteria were included in this study Ultrasonography of full term pregnant women was performed to determine the comparison and accuracy with the actual weight of baby at birth. Results: In a sample of 139 pregnant women, the mean age was 27.8±4.2 years (with minimum age of 20 years and maximum age of 40 years). Ultrasonographic estimated fetal weight and actual birth weight was compared by using paired t-test. No significant difference was found between estimated fetal weight and actual birth weight with P-value 0.237. Conclusion: Ultrasound is highly sensitive, good, reliable, safe and accurate modality for estimation of fetal weight. There is no significant difference between fetal weight and actual birth weight.

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Higher Concordance in Clinical Assessment versus Ultrasound to Estimate Fetal Weight when it compares with Birth Weight in Full-Term Newborns

Revista Ecuatoriana de Pediatría ◽

10.52011/0077 ◽

2021 ◽

Vol 22 (2) ◽

Author(s):

Eliana Velastegui-Ayala ◽

Fabricio Gonzállez-Andrade

Keyword(s):

Birth Weight ◽

Clinical Assessment ◽

Absolute Error ◽

Cross Sectional Study ◽

Full Term ◽

Fetal Weight ◽

Cross Sectional ◽

Low Weight ◽

Term Newborns ◽

Estimate Fetal Weight

Introduction: the aim of this trial was to estimate fetal weight by clinical and ultrasound methods and to compare with the weight at birth in full-term newborns. Methods: This is an epidemiological, observational, cross-sectional study of a cohort of healthy full-term newborns. The sample size was 102 neonates born at the Pablo Arturo Suarez Hospital, in Quito, Ecuador, from November 2019 to January 2020. Results: In full-term neonates, the estimate on ultrasound was 80.00%, while in the clinical assessment was 72.29%. The profile of newborn analyzed is man, mestizo, Ecuadorian, born in the highlands region, with a mean gestational age of 38.67 weeks and a mean birth weight of 3,023 grams, in whom it estimated the fetal weight through ultrasound and clinical assessment. The estimation of the absolute error in both methods analyzed was 2.43% to ultrasound and -4.65% to clinical assessment, and both showed moderate concordance, 78.2% to ultrasound, and 85.6% to clinical assessment. Multivariate analysis showed the neonates with modified weight by ultrasound are 13.44 times more likely to show altered weight at birth, while neonates with modified weight by the clinical assessment are 11.95 times more likely to show altered weight at birth. Conclusions: Accuracy in the clinical assessment was always higher than in the ultrasound method, especially in low weight newborns.

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Low birth weight profiles at H. Boejasin Hospital, South Borneo, Indonesia in 2010-2012

Paediatrica Indonesiana ◽

10.14238/pi56.3.2016.155-61 ◽

2016 ◽

Vol 56 (3) ◽

pp. 155

Author(s):

Yuni Astria ◽

Christopher S. Suwita ◽

Benedica M. Suwita ◽

Felix F. Widjaya ◽

Rinawati Rohsiswatmo

Keyword(s):

Birth Weight ◽

Mortality Rate ◽

Low Birth Weight ◽

Secondary Data ◽

Hyaline Membrane Disease ◽

Cross Sectional Study ◽

Cross Sectional ◽

Weight Category ◽

Kaplan Meier ◽

The Difference

Background The prevalence of low birth weight (LBW) is still high in Indonesia. Intrauterine growth restriction (IUGR) and prematurity are the most frequent causes. Prematurity has higher mortality rate. Cultural diversity has an impact on regional LBW profiles in Indonesia. However, data on LBW is unavailable in South Borneo.Objective To describe the LBW profiles and in-hospital mortality of newborns at H. Boejasin Hospital, South Borneo.MethodsThis was a cross-sectional study using secondary data from medical records and neonatal registry at H. Boejasin Hospital, Pelaihari, South Borneo from 2010 to 2012. Subjects were newborns with birth weight <2,500 grams. Categorical data was presented in percentages, while survival analysis was assessed by Kaplan-Meier test. The difference among groups was analyzed with log-rank test.Results The proportion of LBW was 20.2% of total live births and the mortality rate was 17.3%. Mortality rates according to birth weight category was 96% in <1000 g group, 62% in 1,000-1,499 g group, 19% in 1,500-1,999 g group, and 4% in 2,000-2,499 g group. The highest hazard ratio was in the <1,000 gram birth weight group (HR 40.21), followed by the 1,000-1,499 gram group (HR 12.95), and the 1,500-1,999 gram group (HR 4.65);(P<0.01). Asphyxia, hyaline membrane disease (HMD), and sepsis were the most common causes of mortality (at 50%, 21%, and 16%, respectively).Conclusion The prevalence of LBW in this study is quite high and mortality of LBW infants is significantly different between each low birth weight category. [Paediatr Indones. 2016;56:155-61.].

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Inadequate Gestational Weight Gain and Exposure to Second-Hand Smoke during Pregnancy Increase the Risk of Low Birth Weight: A Cross-Sectional Study among Full-Term Infants

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18031068 ◽

2021 ◽

Vol 18 (3) ◽

pp. 1068

Author(s):

Muliana Edi ◽

Yit Chin ◽

Fui Woon ◽

Geeta Appannah ◽

Poh Lim ◽

...

Keyword(s):

Weight Gain ◽

Birth Weight ◽

Pregnant Women ◽

Medical Records ◽

Cross Sectional Study ◽

Second Hand Smoke ◽

Sectional Study ◽

Cross Sectional ◽

Shs Exposure ◽

At Home

Despite the advancement of the healthcare system, low birth weight (LBW) remains as one of the leading causes of under-five mortality. This cross-sectional study aimed to determine the prevalence of LBW and its associated factors among 483 third trimester pregnant women recruited from six selected public health clinics in the Federal Territory of Kuala Lumpur and the state of Selangor, Malaysia. Pregnant women were interviewed for information on socio-demographic characteristics, smoking behaviour, and second-hand smoke (SHS) exposure at home and in the workplace. Information on the obstetrical history and prenatal care visits history were retrieved from the maternal medical records, while infant’s birth outcomes were retrieved from infant medical records. The prevalence of LBW (<2.5 kg) in infants was 10.4%, with a mean birth weight of 3.0 [standard deviation (SD) 0.4] kg. Results from the multivariable logistic regression model showed that inadequate weight gained during pregnancy [odds ratio (OR) = 2.41, 95% confidence interval (CI) = 1.18–4.90] and exposure to SHS at home (OR = 1.92, 95% CI = 1.03–3.55) were significantly associated with LBW. In conclusion, pregnant women should monitor their rate of weight gain throughout pregnancy and avoid SHS exposure at home to reduce the risk of delivering LBW infants.

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Maternal Weight Gain and its Relationship with Birth Weight of Baby at Term

Bangladesh Journal of Obstetrics & Gynaecology ◽

10.3329/bjog.v32i2.48277 ◽

2020 ◽

Vol 32 (2) ◽

pp. 79-83

Author(s):

Shiffin Rijvi ◽

Sharmin Abbasi ◽

Farhana Dewan ◽

Sehereen Farhad Siddiqua ◽

Anuradha Karmakar

Keyword(s):

Weight Gain ◽

Birth Weight ◽

Pregnant Women ◽

Cross Sectional Study ◽

Large For Gestational Age ◽

Maternal Weight Gain ◽

Maternal Weight ◽

College Hospital ◽

Cross Sectional ◽

Medical College

Background: Perinatal health is influenced by maternal weight gain. Increase in obesity in population and excess weight during pregnancy may be different complications including large for gestational age fetus. As a result cesarean delivery has increased in prevalence. Maternal weight gain during the 2nd and 3rd trimesters is an important determinant of fetal growth Objective: To determine the relationship between maternal weight gain and birth weight of baby at term. Methodology : A cross sectional study was carried among 50 pregnant women at term in the Department of Obstetrics and Gynaecology, Shaheed Suhrawardy Medical College and Hospital and Anwer Khan Modern Medical College Hospital during the period of January 2013 to July 2013. Data were collected in pre-designed data collection sheet. Results: This study found maximum (36%) were age group 21-25 years followed by 28% were ≤20 years, 24% were between 26-30 years, 8% were between 31-35 years and only 4% were of 36-40 years. The average age was 25 years. Among these 50 pregnant women, 2 cases (4%) had BMI < 18.5, 15 cases (30%) had a BMI 18.5-24.9, 19 cases (38%) had a BMI 25-29.9 and 14 cases (28%) had a BMI ≥30. The mean birth weight was 2.77±0.33. kg. Mean weight gain was 10.72±3.72 Kg. Conclusion: This study showed that reasonable maternal weight gain significantly increased birth weight of the baby at term. Bangladesh J Obstet Gynaecol, 2017; Vol. 32(2) : 79-83

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Hubungan Tekanan Darah Ibu Hamil Aterm Dengan Berat Badan Lahir di RSUP Dr. M. Djamil Padang

Jurnal Kesehatan Andalas ◽

10.25077/jka.v2i2.121 ◽

2013 ◽

Vol 2 (2) ◽

pp. 67

Author(s):

Feby Andammori ◽

Nur Indrawaty Lipoeto ◽

Yusrawati Yusrawati

Keyword(s):

Blood Pressure ◽

Pregnant Woman ◽

Birth Weight ◽

Pregnant Women ◽

Medical Record ◽

Cross Sectional Study ◽

T Test ◽

Sectional Study ◽

Cross Sectional ◽

In Pregnancy

AbstrakTinggi rendahnya tekanan darah sistolik dan diastolik dalam kehamilan mempunyai pengaruh terhadap berat badan lahir. Penelitian ini bertujuan untuk mengidentifikasi hubungan tekanan darah ibu hamil aterm dengan berat badan lahir di RSUP dr M. Djamil Padang. Metode penelitian : Penelitian yang dilakukan merupakan survei analitik dengan menggunakan studi komparatif dengan design penelitian Cross Sectional Study. Penelitian menggunakan data sekunder yang diambil dari sub bagian Rekam Medik (Medical Record) RSUP dr. M. Djamil Padang bulan Januari 2010 – Desember 2012 dengan jumlah sampel 34 orang ibu hamil yang tidak hipertensi dan 34 orang ibu hamil yang mengalami hipertensi dalam kehamilannya. Hasil penelitian : Ditemukan rata-rata berat badan lahir bayi yang dilahirkan oleh kelompok ibu yang tidak mengalami hipertensi pada kehamilannya adalah 3.408 (SD 307) gram dan rata-rata berat badan lahir bayi yang dilahirkan oleh kelompok ibu yang mengalami hipertensi pada kehamilannya adalah 2.799 (SD 413) gram. Dari hasil uji analisis Independent Sample T-test diperoleh hasil ditemukan adanya hubungan tekanan darah ibu hamil dengan berat badan lahir di RSUP dr. M. Djamil Padang p = 0,00 (p < 0,05). Kesimpulan : Pemeriksaan kehamilan secara teratur penting untuk mengantisipasi adanya peningkatan tekanan darah ibu hamil yang dapat berpengaruh terhadap berat bayi lahir.Kata kunci: tekanan darah, berat badan lahir, ibu hamilAbstractHigh and low level of systolic and diastolic blood pressure in pregnancy has impact to birth weight. This research is purposed to identify the relation between aterm pregnant blood pressure and birth weight.Methods : This research is analytical survey which used comparative study with Cross Sectional Study design. This research used secondary data taken from Medical Record in RSUP dr. M. Djamil Padang since Januari 2010 until December 2012 with number of samples are 34 pregnant women who have not hypertension and 34 pregnant women who have hypertension in pregnancy.The results: Research found that average of birth weight from non-hypertension pregnant woman is about 3,408 (SD 307) gr and average of birth weight from hypertension pregnant woman is about 2,799 (SD 413) gr. The result from Independent sample T-test analysis found that there is a relation between blood pressure in pregnancy with birth weight at RSUP dr. M.Djamil Padang p = 0.00 (p<0.05).Conclusion: Regular antenatal care is important to anticipate an increase in maternal blood pressure can affect birth weight.Keywords: blood pressure, birth weight, pregnant women

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Mid upper arm circumference in pregnant women and its relationship with birth weight

Panacea Journal of Medical Sciences ◽

10.18231/j.pjms.2021.067 ◽

2021 ◽

Vol 11 (2) ◽

pp. 331-335

Author(s):

Surendra Nath Soren ◽

Partha Sarathi Sahu

Keyword(s):

Birth Weight ◽

Pregnant Women ◽

Linear Regression Analysis ◽

Care Facility ◽

Health Care Facility ◽

Cross Sectional Study ◽

Upper Arm ◽

Cross Sectional ◽

Arm Circumference ◽

Mid Upper Arm Circumference

: Mid upper arm circumference (MUAC) is considered as a good indicator of maternal nutritional status in pregnant women. Very few studies have been done to establish a relationship between MUAC and birth weight of newborn. This study was carried out to analyze the relationship between MUAC and birth weight of newborn in a tertiary health care facility.This cross sectional study was conducted in 240term pregnant women. MUAC was measured to the nearest millimeters using a non-stretchable tape at the midpoint between acromian process and olecranon process. Newborn baby weight was measured within 24 hrs of birth. The association between MUAC and birth weight was established by linear regression analysis.The mean of MUAC among pregnant women delivering LBW was 21.68±2.27 cm which was significantly low (p<0.001) compared to women delivering normal babies (23.47±2.56 cm). There wasa positive correlation(r=0.32;p<0.05)between MUAC and birth weight of newborn.The cut off value of MUAC for the prediction of LBW in our study was found to be 22.59 cm with 62.77% sensitivity and 71.55% specificity.Among the various maternal factors for the prediction of LBW, mid-upper arm circumference (MUAC) can be correlated with birth weight outcome effectively.

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Kecacingan, malaria, dan status besi ibu hamil di Kabupaten Batang Hari Provinsi Jambi

Jurnal Gizi Klinik Indonesia ◽

10.22146/ijcn.17568 ◽

2009 ◽

Vol 5 (3) ◽

pp. 120

Author(s):

Helfiyan Helfiyan ◽

Hamam Hadi ◽

Siti Helmyati

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Pregnant Women ◽

Ascaris Lumbricoides ◽

Age Groups ◽

Cross Sectional Study ◽

Sectional Study ◽

Cross Sectional ◽

Necator Americanus ◽

Before And After

Background: Anemia among pregnant women may increase abortion, premature, low birth weight and even mortality before and after delivery. Factors causing anemia in Indonesia are lack of Fe, inadequate intake, demanding needs, and lack of nutrient facilitating Fe absorption. Besides, infection such as worm and malaria may cause anemia as well. Result of household health survey 2001 stated that prevalence of pregnant women with anemia was 40% in Indonesia. In Jambi Province, it was 39% in 2003 and 42.3% for Batang Hari Regency while infection of malaria was 50.0% in all age groups and many other districts that its environment were woods, humid, and wasted that may increase infection of hookworm.Objective: The study was proposed to know the correlation of hookworm, malaria with anemia among pregnant women by analyzing correlation of hookworm, malaria, and anemia and correlation of hookworm, malaria and Fe status among pregnant women.Method: This was cross sectional study. It held from September until December 2005 in Batang Hari Regency, Jambi Province. Subjects were 132 pregnant women. Examination of blood for Hb, malaria and ferritin were taken together while feces were later.Results: There were no significant correlation of Ascaris lumbricoides infection with anemia (p = 0.36; OR = 2.43), Trichiuris thrichiura infection with anemia (p = 0.30), 2 kinds of worm Ascaris lumbricoides + Trichiuris trichiura with anemia (p = 0.08; OR = 4.87), and infection of Ascaris lumbricoides + Necator americanus with anemia (p = 0.30). There was significant correlation of 3 kinds of worm Ascaris lumbricoides + Trichiuris trichiura + Necator americanus with anemia (p = 0.018; OR = 7.3). There were no significant correlation of Ascaris lumbricoides with ferritin (p = 0.17; OR = 3.23) and Trichiuris trichiura with ferritin (p = 0.25). There was significant correlation of 2 kinds of worm Ascaris lumbricoides + Trichiuris trichiura with ferritin (p = 0.04; OR = 6.4). There was no significant correlation of Ascaris lumbricoides + Necator americanus with ferritin p = 0.25. There were significant correlation of 3 kinds of worm (Ascaris lumbricoides + Trichiuris trichiura + Necator americanus) with ferritin p = 0.007; OR = 9.69 and ferritin with anemia p = 0.0001; OR = 17.45.Conclusion: There was no significant correlation of hookworms Ascaris lumbricoides, Trichiuris trichiura, Ascaris lumbricoides + Trichius trichiura, Ascaris lumbricoides + Necator americanus with anemia. There were significant correlation of infection of Ascaris lumbricoides + Trichiuris trichiura + Necator americanus with anemia and malaria with anemia. There was no correlation of hookworms Ascaris lumbricoides, Trichiuris trichiura, Ascaris lumbricoides + Neca- tor americanus with anemia. There were correlation of infection Ascaris lumbricoides + Trichiuris trichiura and Ascaris lumbricoides + Trichiuris trichiuris + Necator americanus with ferritin, malaria with ferritin, and ferritin with anemia.

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