Neonatal Outcomes at Extreme Prematurity by Gestational Age Versus Birth Weight in a Contemporary Cohort

2021 ◽  
Author(s):  
Elizabeth B. Ausbeck ◽  
Phillip Hunter Allman ◽  
Jeff M. Szychowski ◽  
Akila Subramaniam ◽  
Anup Katheria
Keyword(s):  
Birth Weight ◽  
Umbilical Cord ◽  
Gestational Age ◽  
Predictive Value ◽  
Neonatal Death ◽  
Controlled Trial ◽  
Neonatal Morbidity ◽  
Mortality And Morbidity ◽  
Severe Morbidity ◽  
Multicenter Randomized Controlled Trial

Objective The aim of the study is to describe the rates of neonatal death and severe neonatal morbidity in a contemporary cohort, as well as to evaluate the predictive value of birth gestational age (GA) and birth weight, independently and combined, for neonatal mortality and morbidity in the same contemporary cohort. Study Design We performed a secondary analysis of an international, multicenter randomized controlled trial of delayed umbilical cord clamping versus umbilical cord milking in preterm infants born at 23 0/7 to 31 6/7 weeks of gestation. The current analysis was restricted to infants delivered <28 weeks. The primary outcomes of this analysis were neonatal death and a composite of severe neonatal morbidity. Incidence of outcomes was compared by weeks of GA, with planned subanalysis comparing small for gestational age (SGA) versus non-SGA neonates. Multivariable logistic regression was then used to model these outcomes based on birth GA, birth weight, or a combination of both as primary independent predictors to determine which had superior ability to predict outcomes. Results Of 474 neonates in the original trial, 180 (38%) were included in this analysis. Overall, death occurred in 27 (15%) and severe morbidity in 139 (77%) neonates. Rates of mortality and morbidity declined with increasing GA (mortality 54% at 23 vs. 9% at 27 weeks). SGA infants (n = 25) had significantly higher mortality compared with non-SGA infants across all GAs (p < 0.01). There was no difference in the predictive value for neonatal death or severe morbidity between the three prediction options (GA, birth weight, or GA and birth weight). Conclusion Death and severe neonatal morbidity declined with advancing GA, with higher rates of death in SGA infants. Birth GA and birth weight were both good predictors of outcomes; however, combining the two was not more predictive, even in SGA infants. Key Points

scholarly journals A defined grey zone with in fetal growth curves for predicting adverse neonatal morbidity in fetuses being small for their gestational age at term in uncomplicated pregnancies

2019 ◽  
Author(s):  
Mefkure Eraslan Sahin ◽  
Ilknur Col Madendag ◽  
Erdem Sahin ◽  
Yusuf Madendag ◽  
Fatma Ozdemir ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Birth Weight ◽  
Gestational Age ◽  
Apgar Score ◽  
Neonatal Sepsis ◽  
Neonatal Death ◽  
Neonatal Morbidity ◽  
Grey Zone ◽  
Increased Risk ◽  
Significant Difference

Abstract Background: “Small for gestational age” (SGA) is a term used to define an important risk factor for both neonatal morbidity and mortality. Our hypothesis suggests that adverse neonatal morbidity (ANM) in fetuses can occur when the birth weight is closer to 10th percentile. For example, although a fetus with a birth weight within the 11th or 12th percentile is appropriate for gestational age (AGA), it is difficult to clearly distinguish these fetuses from SGA fetuses for ANM; therefore we suggest defining a transition zone, or “grey zone”, for ANM. The aim of the present study was to examine ANM frequency in fetuses using this newly defined grey-zone percentile. Methods: This retrospective analysis comprised 7,817 pregnant women with uncomplicated pregnancies and single deliveries between 37 0/7 and 41 6/7 gestational weeks. The babies were divided into groups according to birth weight percentiles as follows: (1) SGA, (2) 10–20 percentile, and 21–90 percentile. The primary outcome was ANM, defined as any of the following: Apgar score <4 at 5 min; respiratory distress; mechanical ventilation; intraventricular hemorrhage, grade III or IV; necrotizing enterocolitis, stage 2 or 3; neonatal sepsis, stillbirth or neonatal death. Results: Demographic and obstetric characteristics of the mothers were similar among the groups. ANM rates were 10.7% in the SGA group, 6.8% in the 10–20 percentile group, and 2.1% in the 21–90 percentile group, a significant difference. ANM was 5-fold higher in the SGA group and 3.2-fold higher in the 10–20 percentile group than in the 21–90 percentile group. Delivery induction or augmentation, cesarean delivery for non-reassuring fetal heart rate or fetal distress, apgar score <4 at 5 min, mechanical ventilation, neonatal sepsis, stillbirth, or neonatal death significantly increased in the 10–20 percentile group compared with those in the 21–90 percentile group. Conclusion: In uncomplicated pregnancies, ANM for SGA fetuses born at term are significantly worse than that for AGA fetuses. Fetuses with a birth weight within the 10–20 percentile (grey zone) had a significant increased risk of ANM than those within the 21–90 percentile.

scholarly journals Ultrasound evaluation of the fetal fat tissue, heart, liver and umbilical cord measurements in pregnancies complicated by gestational and type 1 diabetes mellitus: potential application in the fetal birth-weight estimation and prediction of the fetal macrosomia

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Paweł Jan Stanirowski ◽  
Agata Majewska ◽  
Michał Lipa ◽  
Dorota Bomba-Opoń ◽  
Mirosław Wielgoś
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
Birth Weight ◽  
Soft Tissue ◽  
Type 1 Diabetes Mellitus ◽  
Umbilical Cord ◽  
Predictive Value ◽  
Fetal Macrosomia ◽  
Fetal Birth Weight

Abstract Background The aim of the study was to evaluate the ultrasound-derived measurements of the fetal soft-tissue, heart, liver and umbilical cord in pregnancies complicated by gestational (GDM) and type 1 diabetes mellitus (T1DM), and further to assess their applicability in the estimation of the fetal birth-weight and prediction of fetal macrosomia. Methods Measurements were obtained from diet-controlled GDM (GDMG1) (n = 40), insulin-controlled GDM (GDMG2) (n = 40), T1DM (n = 24) and healthy control (n = 40) patients. The following parameters were selected for analysis: fetal sub-scapular fat mass (SSFM), abdominal fat mass (AFM), mid-thigh fat/lean mass (MTFM/MTLM) and inter-ventricular septum (IVS) thicknesses, heart and thorax circumference and area (HeC/HeA; ThC/ThA), liver length (LL), umbilical cord/vein/arteries circumference and area (UmC/UmA; UvC/UvA; UaC/UaA) together with total umbilical vessels (UveA) and Wharton's jelly area (WjA). Regression models were created in order to assess the contribution of selected parameters to fetal birth-weight (FBW) and risk of fetal macrosomia. Results Measurements of the fetal SSFM, AFM, MTFM, MTFM/MTLM ratio, HeC, HeA, IVS, LL, UmC, UmA, UaC, UaA, UveA and WjA were significantly increased among patients with GDMG2/T1DM as compared to GDMG1 and/or control groups (p < .05). The regression analysis revealed that maternal height as well as fetal biparietal diameter, abdominal circumference (AC), AFM and LL measurements were independent predictors of the FBW (p < .05). In addition, increase in the fetal AFM, AC and femur length (FL) was associated with a significant risk of fetal macrosomia occurrence (p < .05). The equation developed for the FBW estimation [FBW(g) = − 2254,942 + 17,204 * FL (mm) + 105,531 * AC (cm) + 131,347 * AFM (mm)] provided significantly lower mean absolute percent error than standard formula in the sub-group of women with T1DM (5.7% vs 9.4%, p < .05). Moreover, new equation including AC, FL and AFM parameters yielded sensitivity of 93.8%, specificity 77.7%, positive predictive value 54.5% and negative predictive value of 97.8% in the prediction of fetal macrosomia. Conclusions Ultrasound measurements of the fetal soft tissue, heart, liver and umbilical cord are significantly increased among women with GDM treated with insulin and T1DM. In addition to standard biometric measurements, parameters, such as AFM, may find application in the management of diabetes-complicated pregnancies.

scholarly journals Fish Oil Supplementation in Pregnancy Increases Gestational Age, Size for Gestational Age, and Birth Weight in Infants: A Randomized Controlled Trial

2018 ◽  
Vol 149 (4) ◽  
pp. 628-634 ◽  
Author(s):  
Rebecca Kofod Vinding ◽  
Jakob Stokholm ◽  
Astrid Sevelsted ◽  
Bo L Chawes ◽  
Klaus Bønnelykke ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Birth Weight ◽  
Pregnant Women ◽  
Gestational Age ◽  
Controlled Trial ◽  
Growth Curves ◽  
Vitamin D Supplementation ◽  
Double Blind ◽  
Randomized Controlled ◽  
In Pregnancy

ABSTRACT Background Randomized trials have reported that supplementation with n–3 long-chain polyunsaturated fatty acids (LCPUFAs) in pregnancy can prolong pregnancy and thereby increase birth weight. Objective We aimed to examine the relations of n–3 LCPUFA supplementation in pregnancy with duration of pregnancy, birth weight, and size for gestational age (GA). Methods This was a double-blind randomized controlled trial conducted in 736 pregnant women and their offspring, from the Copenhagen Prospective Studies on Asthma in Childhood2010cohort. They were recruited between weeks 22 and 26 in pregnancy and randomly assigned to either of 2.4 g n–3 LCPUFA or control (olive oil) daily until 1 wk after birth. Exclusion criteria were endocrine, cardiovascular, or nephrologic disorders and vitamin D supplementation intake >600 IU/d. In this study we analyzed secondary outcomes, and further excluded twin pregnancies and extrauterine death. The primary outcome for the trial was persistent wheeze or asthma. Results The random assignment ran between 2008 and 2010. Six hundred and ninety-nine mother-infant pairs were included in the analysis. n–3 LCPUFA compared with control was associated with a 2-d prolongation of pregnancy [median (IQR): 282 (275–288) d compared with 280 (273–286) d, P = 0.02], a 97-g higher birth weight (mean ± SD: 3601 ± 534 g compared with 3504 ± 528 g, P = 0.02), and an increased size for GA according to the Norwegian population-based growth curves-Skjærven (mean ± SD: 49.9 ± 28.3 percentiles compared with 44.5 ± 27.6 percentiles, P = 0.01). Conclusion Supplementing pregnant women with n–3 LCPUFAs during the third trimester is associated with prolonged gestation and increased size for GA, leading to a higher birth weight in this randomized controlled trial. This trial was registered at clinicaltrials.gov as NCT00798226.

scholarly journals DISTRIBUSI FREKUENSI FAKTOR PENYEBAB KEJADIAN ASFIKSIA PADA BAYI BARU LAHIR DI RS. FADHILLAH KOTA PRABUMULIH TAHUN 2017

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Maria Septiana Maria Septiana
Keyword(s):  
Birth Weight ◽  
Umbilical Cord ◽  
Gestational Age ◽  
Maternal Age ◽  
Placenta Previa ◽  
Secondary Data ◽  
Maternal Factors ◽  
Premature Babies ◽  
Severe Infections ◽  
Abnormal Bleeding

Komplikasi yang menjadi penyebab kematian bayi baru lahir yang terbanyak yaitu asfiksia. penyebab terjadinya asfiksia ada 3 yaitu, faktor ibu (preeklamsi dan eklamsia, perdarahan abnormal yang disebabkan karena plasenta previa atau solusio plasenta, partus lama, demam selama persalinan, infeksi berat, kehamilan post matur, usia ibu kurang dari 20 tahun atau lebih dari 35 tahun), faktor bayi (bayi prematur, persalinan sulit, kelainan konginetal, air ketuban bercampur mekonium), faktor tali pusat (lilitan tali pusat, tali pusat pendek, simpul tali pusat dan prolapsus tali pusat) Metode penelitian : Pengambilan data dalam penelitian ini menggunakan data sekunder dengan pendekatan retrospektif. Hasil Penelitian : Faktor penyebab kejadian asfiksia pada bayi baru lahir berdasarkan faktor ibu yaitu mayoritas terjadi pada usia ibu 20-35 tahun sebanyak 16 (51,6%), , paritas10 (32,3%), umur kehamilan 18 (58,1%) dan berdasarkan faktor dari bayi yaitu mayoritas terjadi pada berat lahir bayi >2500 gram sebanyak 12 (38,7%), dan jenis persalinan yang mengalami asfiksia pada persalinan normal sebanyak 10 (32,3%). Kesimpulan : Faktor penyebab kejadian asfiksia pada bayi baru lahir di RS Fadhilah Kota Prabumulih yaitu dari faktor ibu yaitu mayoritas terjadi pada usia ibu 20-35 tahun, paritas multipara, umur kehamilan 37-42 minggu dan dari faktor bayi yaitu bayi dengan berat lahir >2500 gram dan jenis persalinan normal.     ABSTRACT Asphyxia is one of the complications that become the largest cause of death. Therevare three cause of asphyxia, namely, maternal factors (preeclampsia and eclampsia, abnormal bleeding caused by placenta previa or placental abruption, prolonged labor, fever during labor, severe infections, pregnancy post mature, maternal age less than 20 years old or over 35 years ), factor infants (premature babies, difficult delivery, konginetal disorders, meconium-stained amniotic fluid mixes), factor umbilical cord (umbilical cord loops, short umbilical cord, knot the cord and umbilical cord prolapse). Athere are 31 cose of asphyxia in Fadhilah Hospital. Objective : Knowing the factors that cause asphyxia in newborns at RS Fadhilah Prabumulih City. Methods : Collecting data in this study using secondary data with retrospective approach Result: Factors that cause asphyxia in newborns by maternal factors that occur in the majority of maternal age 20-35 years as many as 16 (51.6%), parity 10 (32.3%), gestational age 18 (58.1%) and by factors of which the majority occur in infants birth weight> 2500 g were 12 (38.7%), and the type of delivery that asphyxiated the normal labor as much as 10 (32.3%). Conclusion : Factors that cause asphyxia in newborns at PKU Muhammadiyah Hospital in Bantul 2016 ie from the maternal factors that occur in the majority of maternal age 20-35 years, multiparas parity, gestational age of 37-42 weeks and infant factors that infants with birth weight> 2500 gram and type of normal deliveries.

scholarly journals Cord Malaria Infection, Complement Activation, Oxidative Stress, Gestational Age, and Birth Weight, Characterized by High Plasmodium falciparum Prevalence in Bamenda, Cameroon

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Oumar Mahamat ◽  
Kidio Gisele Ndum ◽  
Sumo Laurentine ◽  
Ntonifor Ngum Helen
Keyword(s):  
Oxidative Stress ◽  
Birth Weight ◽  
Cord Blood ◽  
Umbilical Cord ◽  
Negative Correlation ◽  
Gestational Age ◽  
Blood Samples ◽  
Total Antioxidant ◽  
Weak Negative Correlation ◽  
And Oxidative Stress

Background. It is unknown whether the presence of Plasmodium falciparum malaria parasites in umbilical cord blood denotes activation of complement and oxidative stress to affect the duration of pregnancy and birth weight. Methods. In a cross-sectional study conducted from January to April 2019 in Bamenda, Cameroon, cord blood samples were collected from 300 women at delivery. Parasitaemia was determined microscopically. Babies’ weight and age of gestation were recorded. Plasma levels of complement and oxidative stress were measured by specific tests. Results. Cord blood malaria prevalence was 21.33%. Babies with an infected cord showed a low birth weight and gestation age than those with uninfected cords. More babies with infected cords had LBW (6.25%) compared to the counterparts (5.50%). The levels of parasitaemia and the babies’ weight showed a weak positive correlation. The prevalence of preterm and postterm birth was 4.33% and 24.33% respectively, with a weak negative correlation between the age of gestation and the umbilical cord parasitaemia. There was correlation between cord parasitaemia and levels of complement haemolytic activity titter (CH50) and specific classical pathway activity (CPA) in cord blood. CH50 and CPA levels, however, were significantly higher in infected cord blood samples, compared with uninfected cord blood samples. CH50 showed a negative correlation with the birth weight and gestational age in infected cord blood samples. The levels of total oxidative stress (TOS) and total antioxidant defense were significantly lower in infected cord blood than uninfected. TOS displayed a positive correlation with the density of parasitaemia and a weak negative correlation with the birth weight and gestational age in infected cord blood. Conclusion. Cord blood infection lowers the complement haemolytic titter, oxygen radicals and total antioxidant defense in neonates. This lowering of complement haemolytic titter and oxygen radical compounds in umbilical cord malaria are associated with low birth weight and preterm birth.

scholarly journals Family-Centered Care Enhanced Neonatal Neurophysiological Function in Preterm Infants: Randomized Controlled Trial

2019 ◽  
Vol 99 (12) ◽  
pp. 1690-1702 ◽  
Author(s):  
Yen-Ting Yu ◽  
Wan-Chi Huang ◽  
Wu-Shiun Hsieh ◽  
Jui-Hsing Chang ◽  
Chyi-Her Lin ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Controlled Trial ◽  
Randomized Controlled ◽  
Oddball Task ◽  
Appropriate For Gestational Age ◽  
Related Potentials ◽  
Family Centered

Abstract Background Family-centered intervention for preterm infants has shown short- to medium-term developmental benefits; however, the neurological effects of intervention have rarely been explored. Objective The objectives of this study were to examine the effect of a family-centered intervention program (FCIP) on neurophysiological functions in preterm infants with very low birth weight (VLBW; birth weight of &lt; 1500 g) in Taiwan, to compare the effect of the FCIP with that of a usual-care program (UCP), and to explore the FCIP-induced changes in neurobehavioral and neurophysiological functions. Design This was a multicenter, single-blind randomized controlled trial. Setting The study took place in 3 medical centers in northern and southern Taiwan. Participants Two hundred fifty-one preterm infants with VLBW were included. Intervention The FCIP group received a family-centered intervention and the UCP group received standard care during hospitalization. Measurements Infants were assessed in terms of neurobehavioral performance using the Neonatal Neurobehavioral Examination–Chinese version, and their neurophysiological function was assessed using electroencephalography/event-related potentials during sleep and during an auditory oddball task during the neonatal period. Results The FCIP promoted more mature neurophysiological function than the UCP, including greater negative mean amplitudes of mismatch negativities in the left frontal region in the oddball task in all infants, lower intrahemispheric prefrontal-central coherence during sleep in infants who were small for gestational age, and higher interhemispheric frontal coherence during sleep in those who were appropriate for gestational age. Furthermore, interhemispheric coherence was positively associated with the total neurobehavioral score in preterm infants who were appropriate for gestational age (r = 0.20). Limitations The fact that more parental adherence strategies were used in the FCIP group than in the UCP group might have favored the intervention effect in this study. Conclusions Family-centered intervention facilitates short-term neurophysiological maturation in preterm infants with VLBW in Taiwan.

scholarly journals The Effect of Maternal Multiple Micronutrient Supplementation on Female Early Infant Mortality Is Fully Mediated by Increased Gestation Duration and Intrauterine Growth

2019 ◽  
Vol 150 (2) ◽  
pp. 356-363 ◽  
Author(s):  
Mary K Quinn ◽  
Emily R Smith ◽  
Paige L Williams ◽  
Willy Urassa ◽  
Joy Shi ◽  
...  
Keyword(s):  
Birth Weight ◽  
Infant Mortality ◽  
Gestational Age ◽  
Controlled Trial ◽  
Joint Effect ◽  
P Value ◽  
Micronutrient Supplementation ◽  
Double Blind ◽  
Intrauterine Growth ◽  
Mortality Effect

ABSTRACT Background Maternal micronutrient supplementation in pregnancy (MMS) has been shown to improve birth weight among infants in low- and middle-income countries. Recent evidence suggests that the survival benefits of MMS are greater for female infants compared to male infants, but the mechanisms leading to differential effects remain unclear. Objective The objective of this study was to examine the potential mechanisms through which MMS acts on infant mortality among Tanzanian infants. Methods We used data collected from pregnant women and newborns in a randomized, double-blind, placebo-controlled trial of MMS conducted in Tanzania to examine mediators of the effect of MMS on 6-wk infant mortality (NCT00197548). Causal mediation analyses with the counterfactual approach were conducted to assess the contributions of MMS on survival via their effects on birth weight, gestational age, weight-for-gestational age, and the joint effect of gestational age and weight-for-gestational age. The weighting method allowed for interaction between gestational age and weight-for-gestational age. Results Among 7486 newborns, the effect of MMS on 6-wk survival was fully mediated (100%) through the joint effect of gestational age and weight-for-gestational age. MMS was also found to have a significant natural indirect effect through increased birth weight (P-value &lt; 0.001) that explained 75% of the total effect on 6-wk mortality. When analyses were stratified by sex, changes in gestational age and weight-for-gestational age fully mediated the mortality effect among female infants (n = 3570), but these mediators only explained 34% of the effect among males (n = 3833). Conclusions The potential sex-specific effects of MMS on mortality may be a result of differences in mechanisms related to birth outcomes. In the context of the Tanzanian trial, the observed effect of MMS on 6-wk mortality for female infants was entirely mediated by increased gestation duration and improved intrauterine growth, while these mechanisms did not appear to be major contributors among male infants.

scholarly journals Intrauterine Growth Restriction: Antenatal and Postnatal Aspects

2016 ◽  
Vol 10 ◽  
pp. CMPed.S40070 ◽  
Author(s):  
Deepak Sharma ◽  
Sweta Shastri ◽  
Pradeep Sharma
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Intrauterine Growth Restriction ◽  
Perinatal Asphyxia ◽  
Neonatal Morbidity ◽  
Growth Restriction ◽  
Growth Potential ◽  
Intrauterine Growth ◽  
Health And Disease ◽  
Neonatal Problems

Intrauterine growth restriction (IUGR), a condition that occurs due to various reasons, is an important cause of fetal and neonatal morbidity and mortality. It has been defined as a rate of fetal growth that is less than normal in light of the growth potential of that specific infant. Usually, IUGR and small for gestational age (SGA) are used interchangeably in literature, even though there exist minute differences between them. SGA has been defined as having birth weight less than two standard deviations below the mean or less than the 10th percentile of a population-specific birth weight for specific gestational age. These infants have many acute neonatal problems that include perinatal asphyxia, hypothermia, hypoglycemia, and polycythemia. The likely long-term complications that are prone to develop when IUGR infants grow up includes growth retardation, major and subtle neurodevelopmental handicaps, and developmental origin of health and disease. In this review, we have covered various antenatal and postnatal aspects of IUGR.

The Impact of Prenatal Vitamin A and Zinc Supplementation on Birth Size and Neonatal Survival - a Double-Blind, Randomized Controlled Trial in a Rural Area of Indonesia

2013 ◽  
Vol 83 (1) ◽  
pp. 14-25 ◽  
Author(s):  
Endy P. Prawirohartono ◽  
Lennarth Nyström ◽  
Detty S. Nurdiati ◽  
Mohammad Hakimi ◽  
Torbjörn Lind
Keyword(s):  
Randomized Controlled Trial ◽  
Birth Weight ◽  
Vitamin A ◽  
Zinc Supplementation ◽  
Controlled Trial ◽  
Neonatal Morbidity ◽  
Birth Length ◽  
Double Blind ◽  
Vitamin A Supplementation ◽  
Randomized Controlled

Background: Prenatal supplementation with micronutrients may increase birth weight and thus improve infant health and survival in settings where infants and children are at risk of micronutrient deficiencies. Objective: To assess whether vitamin A and/or zinc supplementation given during pregnancy can improve birth weight, birth length, neonatal morbidity, or infant mortality. Methods: A double-blind, randomized controlled trial supplementing women (n = 2173) in Central Java, Indonesia throughout pregnancy with vitamin A, zinc, combined vitamin A+zinc, or placebo. Results: Out of 2173 supplemented pregnant women, 1956 neonates could be evaluated. Overall, zinc supplementation improved birth length compared to placebo or combined vitamin A+zinc (48.8 vs. 48.5 cm, p = 0.04); vitamin A supplementation improved birth length compared to placebo or combined vitamin A+zinc (48.7 vs. 48.2 cm, p = 0.04). These effects remained after adjusting for maternal height, pre-pregnancy weight, and parity. There was no effect of supplementation on birth weight, the proportion of low birth weight, neonatal morbidity, or mortality. Conclusions: Prenatal zinc or vitamin A supplementation demonstrates a small but significant effect on birth length, but supplementation with zinc, vitamin A or a combination of zinc and vitamin A, have no effect on birth weight, neonatal morbidity, or mortality.

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