scholarly journals K-Means Bootstrap Analysis in the Birth Weight Classification of the Born Babies

2020 ◽  
Vol 06 (04) ◽  
pp. 99-105
Author(s):  
I Ketut Putu Suniantara ◽  
Ni Putu Nanik Hendayanti ◽  
Gede Suwardika
Keyword(s):  
Birth Weight ◽  
Bootstrap Analysis ◽  
Weight Classification

The Full-Time Child

PEDIATRICS ◽  
1965 ◽  
Vol 35 (6) ◽  
pp. 1021-1021
Author(s):  
HOWARD SETLEIS
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Full Term ◽  
Psychological Status ◽  
Full Time ◽  
Second Line

Having read "Correlates of Low Birth Weight: Psychological Status at Six to Seven Years of Age" by Weiner et al. in the March, 1965, issue of Pediatrics, perhaps the psychological stage was set for pseudo-psychological hypophesizing. I know for a fact that many individuals reading the Summary of the article completely misread the second line. This sentence is printed as: ". . . weight children and 415 full-time children ..." Could the words "full-time" really have been an error? Could the authors, editors, and printers of Pediatrics have forgotten the use of the words "full-term"? Obviously not! "Full-term" as a descriptive classification of infants is used throughout the paper.

scholarly journals Support vector machines for classification of low birth weight in Indonesia

2019 ◽  
Vol 1282 ◽  
pp. 012010
Author(s):  
Ning Eliyati ◽  
Alfensi Faruk ◽  
Endang Sri Kresnawati ◽  
Ika Arifieni
Keyword(s):  
Birth Weight ◽  
Support Vector Machines ◽  
Low Birth Weight ◽  
Support Vector ◽  
Vector Machines

scholarly journals Birth weight classification in gestational diabetes: is there an ideal chart?

2016 ◽  
Vol 36 (4) ◽  
pp. 192-198
Author(s):  
Livia Silveira Mastella ◽  
Letícia Schwerz Weinert ◽  
Vanessa Gnielka ◽  
Vânia Naomi Hirakata ◽  
Maria Lúcia Rocha Oppermann ◽  
...  
Keyword(s):  
Birth Weight ◽  
Gestational Diabetes ◽  
Weight Classification

scholarly journals Warning of Immortal Time Bias When Studying Drug Safety in Pregnancy: Application to Late Use of Antibiotics and Preterm Delivery

2020 ◽  
Vol 17 (18) ◽  
pp. 6465
Author(s):  
Giovanni Corrao ◽  
Federico Rea ◽  
Matteo Franchi ◽  
Benedetta Beccalli ◽  
Anna Locatelli ◽  
...  
Keyword(s):  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Preterm Delivery ◽  
Apgar Score ◽  
Time Varying ◽  
Immortal Time Bias ◽  
Increased Risk ◽  
In Pregnancy

This study aimed to illustrate and account for immortal time bias in pregnancy observational investigations, using the relationship between late use of antibiotics and risk of preterm birth as an example. We conducted a population-based cohort study including 549,082 deliveries between 2007 and 2017 in Lombardy, Italy. We evaluated the risk of preterm births, low birth weight, small for gestational age, and low Apgar score associated with antibiotic dispensing during the third trimester of pregnancy. Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CI) of the outcomes, considering the use of antibiotics as time-fixed (with biased classification of exposure person-time) and time-varying (with proper classification of exposure person-time) exposure. There were 23,638 (4.3%) premature deliveries. There was no association between time-fixed exposure to antibiotics and preterm delivery (adjusted HR 0.96; 95% CI 0.92 to 1.01) but an increased risk of preterm birth when time-varying exposure to antibiotics was considered (1.27; 1.21 to 1.34). The same trend was found for low birth weight and low Apgar score. Immortal time bias is a common and sneaky trap in observational studies involving exposure in late pregnancy. This bias could be easily avoided with suitable design and analysis.

Improvements and Guidance to the Weight Classification using Expanded Ship Work Breakdown Structure (ESWBS)

2014 ◽  
Author(s):  
William Garzke ◽  
Dominick Cimino ◽  
Matthew D. Yoder
Keyword(s):  
Classification System ◽  
Functional Classification ◽  
Cost Estimates ◽  
Weight Estimate ◽  
Work Breakdown Structure ◽  
Proper Weight ◽  
Weight Data ◽  
Weight Classification

This paper presents a guide to identify the proper classification of weight data for USN ships using the Navy’s current Expanded Ship Work Breakdown Structure (ESWBS) system. ESWBS is a functional classification system that is used for weight reporting purposes. It is used on all USN ships as well as many other shipbuilding programs as a method by which all weight estimates are functionally organized. Also, ESWBS is used as an aid to developing ship cost estimates. With the introduction of newer technologies, materials and constructions practices in ship designs, the proper weight accounting has become more difficult and somewhat subjective. Therefore, this paper provides guidance and clarification on the proper weight classification of elements in a weight estimate with a focus on the newer technologies and practices.

SWEDISH STANDARD CURVES FOR INTRA-UTERINE GROWTH

PEDIATRICS ◽  
1970 ◽  
Vol 46 (1) ◽  
pp. 7-8
Author(s):  
Göran Sterky
Keyword(s):  
Birth Weight ◽  
Newborn Infants ◽  
Epidemiological Data ◽  
National Board ◽  
Intrauterine Growth ◽  
Uterine Growth ◽  
Menstrual Pattern ◽  
Definition Of ◽  
Statistical Definition

The classification of newborn infants according to intra-uterine growth must take into account gestational age as well as birth weight. Also important is the intrauterine growth pattern of the population from which individual and epidemiological data are derived and to which they are to be compared. In constructing a definition of "normal" intra-uterine growth, the only practical approach now seems to be a statistical definition from data on live born infants of supposedly normal pregnancies. In Sweden it has been possible to collect such information from material compiled primarily for forensic purposes. Because the resultant curves have been published only in Swedish1, and because the birth weight at term in Sweden has been said to be the highest so far obtained2, the curves are presented here for readers from other countries. The Swedish National Board of Health instructed all maternity wards to report certain data on all infants born from July 1, 1956, to June 30, 1957. Due to various reasons, some small hospitals could not take part. After an intense correspondence to complete the reports, the material included 92,348 infants (51.7% boys). It was calculated that about 110,000 infants were born in the whole country during the period in question. Stillborn and malformed infants were excluded, as were those born to mothers with clinical diabetes mellitus and toxemia (proteinuria at two separate occasions and/or resting systolic blood pressure above 150 mm Hg). Only single births were included. The material now contained 82,011 infants (51.0% boys). Before constructing the curves, it was also decided that the normal menstrual pattern of the mothers had to be known and had to be regular with intervals within 21 to 35 days.

Somatic classification of neonates based on birth weight, length, and head circumference: quantification of the effects of maternal BMI and smoking

2011 ◽  
Vol 39 (3) ◽  
pp. 291-297 ◽  
Author(s):  
Manfred Voigt ◽  
Krisztina Zels ◽  
Florian Guthmann ◽  
Volker Hesse ◽  
Yvonne Görlich ◽  
...  
Keyword(s):  
Birth Weight ◽  
Head Circumference ◽  
Maternal Bmi

scholarly journals Early Life Health Interventions and Academic Achievement

2013 ◽  
Vol 103 (5) ◽  
pp. 1862-1891 ◽  
Author(s):  
Prashant Bharadwaj ◽  
Katrine Vellesen Løken ◽  
Christopher Neilson
Keyword(s):  
Academic Achievement ◽  
Birth Weight ◽  
Early Life ◽  
Very Low Birth Weight ◽  
Health Interventions ◽  
Medical Treatments ◽  
Long Run ◽  
Rules Of Thumb ◽  
Birth Records

This paper studies the effect of improved early life health care on mortality and long-run academic achievement in school. We use the idea that medical treatments often follow rules of thumb for assigning care to patients, such as the classification of Very Low Birth Weight (VLBW), which assigns infants special care at a specific birth weight cutoff. Using detailed administrative data on schooling and birth records from Chile and Norway, we establish that children who receive extra medical care at birth have lower mortality rates and higher test scores and grades in school. These gains are in the order of 0.15–0.22 standard deviations. (JEL I11, I12, I18, I21, J13, O15)

scholarly journals Incompleteness and inaccuracies in Certificates of Live Birth in a city in Southern Brazil

2021 ◽  
Vol 24 (suppl 1) ◽  
Author(s):  
Daiane dos Santos ◽  
Leo Lynce Valle de Lacerda ◽  
Luciane Peter Grillo ◽  
Tatiana Mezadri
Keyword(s):  
Information System ◽  
Birth Weight ◽  
Live Birth ◽  
Maternal Age ◽  
Southern Brazil ◽  
Pregnancy And Childbirth ◽  
Using Data ◽  
Type Of Delivery

ABSTRACT: Objective: To evaluate inadequacies in Certificates of Live Birth in a city in Southern Brazil between 2011 and 2015. Methods: This is a retrospective quantitative study based on Certificates of Live Birth of mothers living in Itapema, Santa Catarina, issued from 2011 to 2015, using data from the Live Birth Information System. Results: Among 3,537 certificates, we found no mistakes in the variables newborn's sex, birth weight, maternal age, type of pregnancy, and type of delivery. Concerning incompleteness, the variable “cesarean section was performed before the start of labor” had a mean rate considered poor, while occupation was classified as good (above 6%), neighborhood as excellent (between 0.8 and 4.5%), and induction also as excellent (0.7 to 2.9%). Inaccuracies were greater in the ethnicity (up to 0.7%) and neighborhood (up to 1.3%) variables, both considered excellent. In the comparison between sections, the pregnancy and childbirth section was the most incomplete. Conclusion: Data completeness in Certificates of Live Birth was considered excellent for most variables, and the classification of inaccuracies was excellent for all variables, evidencing the quality of the information found in these certificates.

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