Interpretation of Birth Weight Data: A Note of Caution

2008 ◽  
Vol 52 (4) ◽  
pp. 807 ◽  
Author(s):  
Michiel F. Schreuder
Keyword(s):  
1982 ◽  
Vol 62 (1) ◽  
pp. 287-290
Author(s):  
D. K. AARON ◽  
F. A. THRIFT

Birth and weaning weight data were evaluated on 1/2 Simmental (SH, SA), 1/2 Maine-Anjou (MH, MA), 3/4 Simmental (S.SH, S.SA) and 3/4 Maine-Anjou (M.MH, M.MA) calves. For birth weight, 1/2 Simmental calves were lighter (P < 0.01) than 1/2 Maine-Anjou calves, and calves from Hereford cows were heavier (P < 0.01) than calves from Angus cows. Also, S.SH calves were heavier (P < 0.01) than S.SA calves. For weaning weight, 3/4 Simmental calves were heavier (P < 0.01) than 3/4 Maine-Anjou calves, and 1/2 Simmental and Maine-Anjou calves were lighter (P < 0.01) than 3/4 Simmental and Maine-Anjou calves. Key words: Calf genetic types, grading-up, beef cattle


1995 ◽  
Vol 6 (5) ◽  
pp. 345-348 ◽  
Author(s):  
Y. Yuval ◽  
D. S. Seidman ◽  
R. Achiron ◽  
M. Goldenberg ◽  
M. Alcalay ◽  
...  

1999 ◽  
Vol 11 (2) ◽  
pp. 71-76 ◽  
Author(s):  
Awang Bulgiba Awang Mahmud ◽  
Atiya Ab Sallam

An analysis of birth weight was undertaken on secondary data derived from the Malaysian Family Life Survey II. A total of 1629 last singleton live birth infants was analysed with the aim of identifying from the variables available potential risk factors for low birth weight. Univariate and subsequently multivariate analyses were carried out for this purpose. The incidence of low birth weight was 11.8 percent. Race, parity and prematurity were found to be significantly associated with low birth weight after controlling of the other variables. The findings indicate that more work needs to be done to establish the underlying reasons for low birth weight in Malaysia.


2009 ◽  
Vol 25 (6) ◽  
pp. 716-721 ◽  
Author(s):  
J.A. Parish ◽  
T. Smith ◽  
J.R. Parish ◽  
T.F. Best ◽  
H.T. Boland
Keyword(s):  

2016 ◽  
Vol 12 (1) ◽  
pp. 33
Author(s):  
Novia Fajarwati ◽  
Pudji Andayani ◽  
Lena Rosida

Abstract:Neonatal asphyxia is a condition where the baby can not breathe spontaneously and regularly soon after birth or shortly after birth. Birth weight is a part of the factors that can cause neonatal asphyxia. Research conducted retrospective observational analytic approach to determine the relationship between birth weight and neonatal asphyxia which uses secondary data from medical records of patients. The study was conducted in August-October 2015 in the NICU and medical record room of RSUD Ulin Banjarmasin. The sampling technique used purposive sampling and obtained a sample of 334 cases. The statistical test used is chi-square test with 95% confidence level. The results showed that of 334 cases of birth weight data showed 17.4% risk birth weight and no-risk birth weight by 82,6%. Neonatal asphyxia 26.3% and 73.7% of no-neonatal asphyxia. Based on the statistical test showed p = 0.674 so that it can be concluded that there is no significant correlation between birth weight and neonatal asphyxia in RSUD Ulin Banjarmasin period June 2014-June 2015.Keywords: neonatal asphyxia, birth weight, risk factor Abstrak: Asfiksia neonatorum adalah suatu keadaan dimana bayi tidak dapat bernapas secara spontan dan teratur segera setelah lahir atau beberapa saat setelah lahir. Berat badan lahir merupakan bagian dari faktor neonatus yang dapat menyebabkan asfiksia neonatorum. Penelitian dilakukan secara observasional analitik dengan pendekatan retrospektif untuk mengetahui hubungan antara berat badan lahir dan kejadian asfiksia neonatorum yang menggunakan data sekunder dari rekam medis pasien. Penelitian dilakukan pada bulan Agustus-Oktober 2015  di ruang NICU dan ruang rekam medis RSUD Ulin Banjarmasin. Teknik pengambilan sampel menggunakan metode purposive sampling dan didapatkan sampel sebanyak 334 kasus. Uji statistik yang digunakan yaitu  uji chi-square dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa dari 334 kasus diperoleh data berat badan lahir berisiko sebesar 17,4% dan berat badan lahir tidak berisiko sebesar 82,6%. Kejadian asfiksia neonatorum sebesar 26,3% dan tidak asfiksia neonatorum sebesar 73,7%.  Berdasarkan hasil uji statistik didapatkan hasil p = 0,674 sehingga dapat disimpulkan bahwa tidak terdapat hubungan yang bermakna antara berat badan lahir dan kejadian asfiksia neonatorum di RSUD Ulin Banjarmasin periode Juni 2014-Juni 2015. Kata-kata kunci: asfiksia neonatorum, berat badan lahir, faktor risiko


Author(s):  
Carmen Mannucci ◽  
Everaldo Attard ◽  
Fabrizio Calapai ◽  
Fabio Facchinetti ◽  
Rosario D’Anna ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Liping Shen ◽  
Jie Wang ◽  
Yifan Duan ◽  
Zhenyu Yang

AbstractLow birth weight (< 2500 g; LBW) and macrosomia (> 4000 g) are both adverse birth outcomes with high health risk in short- or long-term period. However, national prevalence estimates of LBW and macrosomia varied partially due to methodology limits in China. The aim of this study is to estimate the prevalence of LBW and macrosomia after taking potential birth weight heaping into consideration in Chinese children under 6 years in 2013. The data were from a nationally representative cross-sectional survey in mainland China in 2013, which consists of 32,276 eligible records. Birth weight data and socio-demographic information was collected using standard questionnaires. Birth weight distributions were examined and LBW and macrosomia estimates were adjusted for potential heaping. The overall prevalence of LBW of Chinese children younger than 6 years was 5.15% in 2013, with 4.57% in boys and 5.68% in girls. LBW rate was higher for children who were minority ethnicity, had less educated mothers, mothers aged over 35 years or under 20 years, or were in lower income household than their counterparts. The overall prevalence of macrosomia of Chinese children younger than 6 years was 7.35% in 2013, with 8.85% in boys and 5.71% in girls. The prevalence of macrosomia increased with increasing maternal age, educational level and household income level. Both LBW and macrosomia varied among different regions and socio-economic groups around China. It is found that estimates based on distribution adjustment might be more accurate and could be used as the foundation for policy-decision and health resource allocation. It would be needed to take potential misclassification of birth weight data arising from heaping into account in future studies.


Author(s):  
Bunga Oktora ◽  
Dewi Susanna

Pajanan pencemar udara selama kehamilan berhubungan dengan bayi berat badan lahir rendah (BBLR). Untuk menghubungkan konsentrasi NO2 dalam udara ambien, telah dilakukan studi ekologi di Jakarta. Konsentrasi NO2 didapat dari data monitoring BPLHD DKI Jakarta 2009 – 2011, sedangkan kasus-kasus bayi BBLR diperoleh dari Dinas Kesehatan Provinsi DKI Jakarta. Data dianalisis dengan Anova, uji korelasi, dan regresi linier dan berganda. Hasil analisis menunjukkan bahwa konsentrasi NO2 dalam bulan pertama dan kedua kehamilan berhubungan bermakna dengan BBLR (masing-masing dengan R = 0,464, nilai p = 0,0001 dan R = 0,243, nilai p = 0,013). Regresi linier berganda menunjukkan bahwa konsentrasi NO2 dapat meramalkan 25% kasus BBLR (R = 0,5; R2 = 0,25; nilai p = 0,0001). Variabel yang paling memengaruhi BBLR adalah pajanan terhadap NO2 pada bulan pertama gestasi (B = 259). Disimpulkan, pajanan NO2 pada bulan pertama dan kedua kehamilan dan tempat wilayah tinggal berhubungan dengan BBLR, dengan pajanan NO2 pada bulan pertama kehamilan merupakan faktor utama BBLR.It has been known that exposure to air pollutant during pregnancy was associated with low birth weight. To correlate NO2 concentration in ambient air with baby with low birth weight (LBW), an ecological study has been carried in Jakarta. NO2 concentration was obtained from 2009 – 2011 monitoring data (Jakarta BPLHD), while low birth weight data were obtained from Jakarta Provincial Health Office. Anova, correlation, linear and multiple linear regressions were employed to analyze NO2 concentration with LBW. It showed that NO2 concentrations during first and second month of pregnancy were significantly correlated with the LBW (R = 0.464, p value = 0.0001 and R = 0.243, p value = 0.013). Multiple linear regression showed that the concentration of NO2 in the first and second month of pregnancy can predict 25% of LBW cases (R = 0.5, R2 = 0.25; p value = 0.0001). The most influence variable on LBW is exposure to NO2 in the first month of gestation (B = 259). It is concluded that exposure to NO2 in the first and second month of pregnancy and city of residence correlated with the LBW, with NO2 exposure in the first month of pregnancy was the most influencing factor of the LBW.


PEDIATRICS ◽  
1998 ◽  
Vol 102 (Supplement_1) ◽  
pp. 237-239
Author(s):  
Frank R. Greer

Data on the birth weights of 5,635 live-born Caucasian infants at 24 to 42 weeks' gestation are presented. All infants were born from July 1948 to January 1961. Data from infants born at greater than 36 weeks' gestation after 1955 are excluded because of the large number of infants. The socioeconomic stratum represented by this population is defined as medically indigent or part-pay. The median weights of Colorado babies (3230 g) were found to be lower at 40 weeks' gestation that the national median (3340 g). Weight curves in the form of percentiles are generated from the data. These curves can be used as standards for determining the adequacy of weight gain of individual infants which may be done either at the time of birth, or after birth in relation to extrauterine environmental factors.


PEDIATRICS ◽  
1963 ◽  
Vol 32 (5) ◽  
pp. 793-800 ◽  
Author(s):  
Lula O. Lubchenco ◽  
Charlotte Hansman ◽  
Marion Dressler ◽  
Edith Boyd

Percentile curves representing intrauterine growth of Caucasian infants in Colorado are constructed from the birthweights of liveborn infants at gestational ages ranging from 24 to 42 weeks. The median weights of Colorado babies were found to be lower at 40 weeks of gestation than the national median, and mean weights at 40 and 42 weeks were lower than those given by other authors. The use of the intrauterine growth chart in studying the nutrition of babies at birth and during their postnatal growth period has been described.


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