Prediction Of Adverse Neonatal Outcome Research Articles

Pregnancy in women with congenital heart disease: New insights into neonatal risk prediction

BackgroundAdvances in managing adult congenital heart disease (ACHD) have led to an increased number of women with CHD reaching childbearing age. This demographic shift underscores the need for improved understanding and prediction of complications during pregnancy in this specific ACHD population. Despite progress in maternal cardiac risk assessment, the prediction of neonatal outcomes for ACHD pregnancies remains underdeveloped. Therefore, the aims of this study are (1) to assess neonatal outcomes in a CHD women population, (2) to identify their predictive factors and (3) to propose a new risk score for predicting neonatal complications. MethodsThis registry study included all women born between 1975 and 1996 diagnosed with ACHD who underwent at least one cardiology consultation for ACHD in Cliniques Universitaires Saint-Luc. A multivariate analysis was performed to identify predictors of neonatal complications and these were incorporated into a new risk index. Its validity was assessed using bootstrap method. This score was then compared with scores adapted from the ZAHARA and CARPREG studies for offspring events prediction. ResultsAnalysis of 491 pregnancies revealed 31.4% of neonatal complications. Four significant predictors of adverse neonatal outcomes were identified: cardiac treatment during pregnancy (OR 14.8, 95%CI [3.4-66]), hypertensive disorders of pregnancy (OR 11.4, 95%CI [3.4-39.0]), smoking during pregnancy (OR 10.6, 95% CI [2.8-40.6]), and pre-pregnancy BMI < 18.5 kg/m² (OR 6.5, 95% CI [2.5-16.5]). The risk model demonstrated an AUC of 0.70 (95% CI [0.65-0.75), which remained stable after bootstrap validation. This model significantly outperformed the scores adapted from ZAHARA and CARPREG data. Based on the regression coefficients, a risk score was subsequently developed comprising 5 risk categories. ConclusionsOne third of ACHD pregnancies are complicated by poor neonatal outcome. These complications are determined by 4 independent factors relating to the cardiac and non-cardiac status of the patients, which have been incorporated into a risk score. Our study is one of the first to propose a predictive risk score of neonatal outcomes in ACHD pregancies, and paves the way for other validation and confirmation studies.

The role of multimodal ultrasound in diagnosis of fetal bowel dilatation and prediction of adverse neonatal outcomes: A study of 86 cases in a series of 43,562 births

ObjectiveTo investigate the diagnostic utility of multimodal ultrasound for fetal bowel dilatation (FBD) in different parts of the bowel and to examine its prognostic potential in FBD. MethodsThis retrospective study analyzed 86 fetuses with a dilated bowel identified via ultrasound in a 10-month postnatal follow-up. Both two- and three dimensional (2D and 3D, respectively) ultrasound volume imaging were used to characterize dilation across different bowel sections. The optimal intestinal diameter cut-off values for pathological bowel dilatation were determined and a predictive model for neonatal surgery was developed. ResultsThe 86 cases of dilatation were distributed as follows: duodenal (n = 36); jejunum/ileum (n = 35); and colonic (n = 15). Duodenal dilatations presented the earliest during pregnancy compared to the other 2 groups (24.4 versus [vs.] 29 vs. 33.7 weeks respectively; p < 0.05). Cases with small intestinal dilatation were delivered earlier than those with colonic dilatation (p < 0.05). Infants with duodenal dilatation had the lowest birth weight and the highest rate of multi-system abnormalities (30.6% vs. 5.7% vs. 20%; p < 0.001). More than one-half of the multi-system abnormalities had chromosomal abnormalities (multiple, 54% vs. single, 12.5%; p = 0.015). There were 2 stillbirths, 24 induced labors, 44 postnatal surgeries, and 18 normal cases after birth. In predicting adverse neonatal outcomes of jejunum/ileum dilatation using a cut-off value of 15.5 mm small intestine diameter, sensitivity was 81.5%, specificity was 62.5%, and the area under the receiver operating characteristic curve (AUC) was 0.762 (p < 0.05). For colonic dilatation, using a cut-off value of 21.5 mm colon diameter: sensitivity was 83.3%, specificity was 77.8%, and AUC was 0.861 (p < 0.05). In detecting jejunum/ileum and colonic obstruction, 3D ultrasound demonstrated significantly better diagnostic efficiency than 2D ultrasound (p < 0.05). Using the backward stepwise selection method, a predictive model for neonatal surgery in patients with jejunum/ileum and colonic dilatation was established: logit (P) = −1.58 + (2.32 × polyhydramnios) +(2.0 × ascites) +(1.14 × hyperechogenic bowel). The AUC for the prediction model was 0.874 (p < 0.05), with 76% sensitivity and 94.1% specificity. ConclusionsDuodenal dilatation occurred earlier, with a higher incidence of chromosomal abnormalities and multi-system abnormalities than dilatation of other parts of the bowel. 3D ultrasound played an important role in the detection of jejunum/ileum and colon obstructions. Clinical signs, including polyhydramnios, ascites, and strong echoes in the intestine, can be used to predict neonatal surgery.

969 Prediction of adverse neonatal outcomes at the start of the second stage of labor

969 Prediction of adverse neonatal outcomes at the start of the second stage of labor

EP13.43: Prediction of adverse neonatal outcome is improved using the Delphi consensus definition for FGR

EP13.43: Prediction of adverse neonatal outcome is improved using the Delphi consensus definition for FGR

OC14.05: The Delphi consensus and placental biomarkers in the prediction of adverse neonatal outcomes in fetal growth restriction

OC14.05: The Delphi consensus and placental biomarkers in the prediction of adverse neonatal outcomes in fetal growth restriction

The value of Middle cerebral and umbilical arteries Doppler indices in pregestational diabetic versus normal pregnancies in prediction of adverse neonatal outcome

The value of Middle cerebral and umbilical arteries Doppler indices in pregestational diabetic versus normal pregnancies in prediction of adverse neonatal outcome

Prediction of adverse neonatal outcome at admission for early-onset preeclampsia with severe features.

Preeclampsia remains the leading cause of maternal morbidity and mortality. Consequently, research has focused on validating tools to predict maternal outcomes regarding clinical and biochemical features from the maternal compartment. However, preeclampsia also leads to neonatal complications due to placental insufficiency and prematurity, being the early-onset type associated with the poorest outcome. Hence, it is imperative to study whether these existing tools can predict adverse neonatal outcome. To assess the predictive value for adverse neonatal outcome of Doppler ultrasound, angiogenic factors and multi-parametric risk-score models in women with early-onset severe preeclampsia. This is a prospective cohort study of consecutive singleton pregnancies complicated by early-onset (developed before 34week's gestation) severe preeclampsia. 63 women with early-onset severe preeclampsia, 18 (28.6%) presented an adverse neonatal outcome. Placental growth factor (PlGF) showed the best discrimination between neonatal outcomes among angiogenic factors. PREP-L score is a multi-parametric risk-score for the prediction of complications in early-onset preeclampsia which includes maternal characteristics and clinical and analytical data obtained at admission. Good predictive values for the prediction of neonatal complications were found with the combination of PREP-L score with advanced Doppler (AUC ROC 0.9 95% CI 0.82-0.98]) and with PlGF levels (AUC ROC 0.91 [95% CI 0.84-0.98]). The combination of maternal risk scoring (PREP-L score) with angiogenic factors or fetal Doppler ultrasound at the time of diagnosis of early-onset preeclampsia with severe features performs well in predicting adverse neonatal outcome.

The Association of Anesthesia Type and Neonatal Outcomes Following Category-1 Cesarean Delivery: A Retrospective Cohort Study.

Objectives Neuraxial anesthesia is the preferred anesthesia technique for cesarean delivery due to a decreased risk of adverse events. However, general anesthesia is often employed during emergent cesarean deliveries to achieve a shorter decision-to-delivery interval. The objective of this study was to determine if the conversion of epidural labor analgesia to surgical anesthesia for a category-1 cesarean delivery is associated with significant neonatal morbidity. Study design This was a retrospective cohort study of all intrapartum category-1 cesarean deliveries performed at an academic tertiary care institution between August 2016 and July 2021. The primary outcome was neonatal morbidity, defined as a composite of neonatal umbilical artery pH < 7.10 and/or 5-min Apgar score < 7, and/or neonatal intensive care unit admission. A multivariate regression analysis was performed to control for the presence of covariates and examine the degree to which they influenced the outcome. Results A total of 185 mother-neonate pairs qualified for inclusion, of which 23 had cesarean delivery under general anesthesia and 162 under epidural anesthesia. There was no significant difference in adverse neonatal outcomes between category-1 cesarean deliveries done under general anesthesia compared to epidural anesthesia (47% vs 35%,p = 0.3). The incidence of umbilical arterial pH < 7.10 was higher in the general anesthesia group compared to the epidural anesthesia group (35% vs 12%,p = 0.018). The multivariate regression model showed that gestational age (OR = 0.63; 95% CI = 0.51-0.75, p = <0.001) and non-reassuring fetal heart trace (OR = 0.18; 95% CI = 0.05-0.58, p = 0.005) were significant predictors of adverse neonatal outcome. Conclusion Our results suggest that the conversion of epidural analgesia to surgical anesthesia for category-1 cesarean delivery in women with a functional labor epidural catheter is not associated with poorer neonatal outcomes.

Changes in primary and secondary hemostasis as a predictor of adverse neonatal outcomes in birth asphyxia

Changes in primary and secondary hemostasis as a predictor of adverse neonatal outcomes in birth asphyxia

Aspartate aminotransferase to platelet ratio index (APRI) score: is it useful in patients with intrahepatic cholestasis of pregnancy?

Objective It is aimed to evaluate the efficacy of using aspartate aminotransferase (AST)/platelet count ratio [AST to platelet ratio index (APRI) score] in ICP patients. Methods This study was carried out including 101 patients diagnosed with ICP (72 patients with mild ICP and 29 patients with severe ICP). Laboratory tests and neonatal outcomes of both groups were analyzed retrospectively. APRI scores were compared between the two groups. Receiver operating characteristic (ROC) analysis was used to evaluate the performance of the APRI score in determining the severity of ICP and the prediction of adverse neonatal outcomes. p < .05 was considered to be a statistically significant result. Results Patients with severe ICP had higher APRI scores than patients with mild ICP (p < .001). The cutoff value for the APRI score was 1.06, with 82% sensitivity and 72% specificity. There was also a significant positive association between APRI score and fasting bile acid level (r = 0.445, p < .001). In addition, elevated APRI scores were associated with meconium-stained amniotic fluid, neonatal intensive care unit admission and preterm delivery. Conclusion The APRI score may not be the perfect differentiating method for the severity of ICP but it may help the clinician working with limited resources.

Reduced fetal urine production rate-An early marker of fetal inflammatory response syndrome in preterm premature rupture of membranes: Prospective cohort study.

To find association between fetal urine production rate (FUPR) and fetal inflammatory response syndrome (FIRS) in preterm premature rupture of membranes (PPROM). A prospective cohort study of 70 pregnant women with PPROM at 28-34weeks of pregnancy was conducted. FUPR was calculated by performing serial fetal bladder volume measurements ultrasonographically and was repeated weekly until delivery. After delivery, cord blood interleukin-6 (IL-6) levels were measured. Placental tissue histopathology was performed and neonatal outcomes were noted. Out of 70 recruited patients with PPROM, 44 had evidence of FIRS (62.86%). Mean FUPR at the time of delivery was significantly reduced in neonates with evidence of FIRS compared with the Non-FIRS group (13.89±8.06ml/h vs. 25.89±4.94ml/h). Out of 41 patients with reduced FUPR, 39 neonates had FIRS whereas only five out of 29 neonates with normal FUPR had FIRS (P<0.001). Severe neonatal morbidity was found in 24 out of 41 (58.54%) neonates with reduced FUPR prenatally. The occurrence of respiratory distress syndrome, necrotizing enterocolitis, and sepsis was significantly high in neonates with reduced FUPR. Reduced FUPR is strongly associated with FIRS in cases of PPROM and hence can be used as an early predictor of adverse neonatal outcomes.

Adverse neonatal outcome in twin pregnancy complicated by small-for-gestational age: twin vs singleton reference charts.

The use of twin-specific vs singleton growth charts in the assessment of twin pregnancy has been controversial. The aim of this study was to assess whether a diagnosis of small-for-gestational age (SGA) made using twin-specific estimated-fetal-weight (EFW) and birth-weight (BW) charts is associated more strongly with adverse neonatal outcomes in twin pregnancies, compared with when the diagnosis is made using singleton charts. This was a cohort study of twin pregnancies delivered at St George's Hospital, London, between January 2007 and May 2020. Twin pregnancies complicated by intrauterine death of one or both twins, fetal aneuploidy or major abnormality, twin-twin transfusion syndrome or twin anemia-polycythemia sequence and those delivered before 32 weeks' gestation, were excluded. SGA was defined as EFW or BW below the 10th centile, and was assessed using both twin-specific and singleton EFW and BW charts. The main study outcome was composite adverse neonatal outcome. Mixed-effects logistic regression analysis with random pregnancy-level intercepts was used to test the association between SGA classified using the different charts and adverse neonatal outcome. A total of 1329 twin pregnancies were identified, of which 913 (1826 infants) were included in the analysis. Of these pregnancies, 723 (79.2%) were dichorionic and 190 (20.8%) were monochorionic. Using the singleton charts, 33.3% and 35.7% of pregnancies were classified as SGA based on EFW and BW, respectively. The corresponding values were 5.9% and 5.6% when using the twin-specific charts. Classification as SGA based on EFW using the twin charts was associated significantly with composite adverse neonatal outcome (odds ratio (OR), 4.78 (95% CI, 1.47-14.7); P = 0.007), as compared with classification as appropriate-for-gestational age (AGA). However, classification as SGA based on EFW using the singleton standard was not associated significantly with composite adverse neonatal outcome (OR, 1.36 (95% CI, 0.63-2.88); P = 0.424). Classification as SGA based on EFW using twin-specific standards provided a significantly better model fit than did using the singleton standard (likelihood ratio test, P < 0.001). When twin-specific charts were used, classification as SGA based on BW was associated significantly with a 9.3 times increased odds of composite adverse neonatal outcome (OR, 9.27 (95% CI, 2.86-30.0); P < 0.001). Neonates classified as SGA according to the singleton BW standard but not according to the twin-specific BW standards had a significantly lower rate of composite adverse neonatal outcome than did AGA twins (OR, 0.24 (95% CI, 0.07-0.66); P = 0.009). The singleton charts classified one-third of twins as SGA, both prenatally and postnatally. Infants classified as SGA according to the twin-specific charts, but not those classified as SGA according to the singleton charts, had a significantly increased risk of adverse neonatal outcome compared with infants classified as AGA. This study provides further evidence that twin-specific charts perform better than do singleton charts in the prediction of adverse neonatal outcome in twin pregnancies. The use of these charts may reduce misclassification of twins as SGA and improve identification of those that are truly growth restricted. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.

Timing of COVID-19 as a Predictor of Adverse Neonatal Outcomes

COVID-19 provokes a profound inflammatory response that can lead to significant maternal morbidity. The impact on a developing fetus is not well-described, especially in regards to the timing of maternal infection. We sought to determine whether gestational age at diagnosis of maternal COVID-19 is associated with adverse neonatal outcomes.

Right ventricular analysis of fetuses with congenital diaphragmatic hernia shows increased risk of neonatal death

Cardiac deformation analysis (CDA) is a novel ultrasound (US) technique used to assess fetal cardiac shape and contractility. This study aims to correlate CDA with observed/expected lung-to-head ratio (O/E LHR) in the prediction of adverse neonatal outcome in fetuses with isolated congenital diaphragmatic hernia (CDH) no treated with fetoscopic tracheal occlusion.

Maternal and neonatal complications in women with congenital heart disease: a nationwide analysis

The aim of this study was to provide population-based data on maternal and neonatal complications and outcome in the pregnancies of women with congenital heart disease (CHD). Based on administrative data from one of the largest German Health Insurance Companies (BARMER GEK, ∼9 million members representative for Germany), all pregnancies in women with CHD between 2005 and 2018 were analysed. In addition, an age-matched non-CHD control group was included for comparison and the association between adult CHD (ACHD) and maternal or neonatal outcomes investigated. Overall, 7512 pregnancies occurred in 4015 women with CHD. The matched non-CHD control group included 6502 women with 11 225 pregnancies. Caesarean deliveries were more common in CHD patients (40.5% vs. 31.5% in the control group; P < 0.001). There was no excess mortality. Although the maternal complication rate was low in absolute terms, women with CHD had a significantly higher rate of stroke, heart failure and cardiac arrhythmias during pregnancy (P < 0.001 for all). Neonatal mortality was low but also significantly higher in the ACHD group (0.83% vs. 0.22%; P = 0.001) and neonates to CHD mothers had low/extremely low birth weight or extreme immaturity (<0.001) or required resuscitation and mechanical ventilation more often compared to non-CHD offspring (P < 0.001 for both). On multivariate logistic regression maternal defect complexity, arterial hypertension, heart failure, prior fertility treatment, and anticoagulation with vitamin K antagonists emerged as significant predictors of adverse neonatal outcome (P < 0.05 for all). Recurrence of CHD was 6.1 times higher in infants to ACHD mothers compared to controls (P < 0.0001). This population-based study illustrates a reassuringly low maternal mortality rate in a highly developed healthcare system. Nevertheless, maternal morbidity and neonatal morbidity/mortality were significantly increased in women with ACHD and their offspring compared to non-ACHD controls highlighting the need of specialized care and pre-pregnancy counselling.

Prevalence and Pregnancy Outcomes of Intrahepatic Cholestasis of Pregnancy.

Intrahepatic cholestasis of pregnancy is a common pregnancy-specific liver disease associated with increased risk of adverse fetal and maternal outcomes. We sought to determine its prevalence, risk factors and feto-maternal outcomes. A retrospective review of data of 164 pregnant women diagnosed with intrahepatic cholestasis of pregnancy at Chitwan Medical College, Nepal from August 2018 to September 2020 was done. Socio-demographic data, clinic-laboratory profile and feto-maternal outcomes were obtained from clinical audit books and electronic records. A multivariate logistic regression analysis was used to evaluate the predictors of adverse neonatal outcome. The prevalence of intrahepatic cholestasis of pregnancy was 2.5% (164 out of 6539 deliveries). The mean age was 27.5 ± 4.4 years and 51.2% were multigravida. The preterm delivery rate was 15.2% and Caesarean delivery rate was 69.5%. 22% of the neonates needed intensive care admission out of which Respiratory Distress Syndrome or Transient Tachypnea of Newborn was seen in half of them. There were 2 cases of Intrauterine Fetal Death. In multivariate analysis, delivery <34 weeks of gestation was only found to be a significant independent predictor of adverse neonatal outcome Conclusion: The prevalence of intrahepatic cholestasis of pregnancy among pregnant women is significant in our setting which is associated with adverse fetal outcome. Early diagnosis and timely intervention is necessary in order to reduce associated perinatal morbidity.

Comparing the cerebro-placental to umbilico-cerebral Doppler ratios for the prediction of adverse neonatal outcomes in pregnancies complicated by fetal growth restriction

Objective The cerebroplacental ratio (CPR) has shown utility as a surrogate marker for fetal growth restriction and can be used to stratify the risk for adverse perinatal outcomes in affected pregnancies. However, recent studies suggest that its inverse, the umbilico-cerebral ratio (UCR), may be a better predictor of such outcomes. The aim of this study was to compare the prognostic accuracy of CPR to that of UCR Doppler in predicting short-term adverse perinatal outcomes in growth-restricted fetuses. Methods We conducted a secondary analysis using data from a prospective study on women referred for fetal growth ultrasounds between 26 and 36 weeks of gestation and with an EFW < 10th percentile by Hadlock standard. The CPR and UCR were converted into Z-scores adjusted for gestational age at ultrasound. Abnormal CPR was defined as Z-score below the 10th percentile for the gestational age and abnormal UCR as Z-score above the 90th percentile. We calculated sensitivity and specificity of the two Doppler parameters for predicting composite adverse perinatal outcome (APO) defined as the presence of any one of the following: umbilical cord arterial pH <7.10, Apgars at 5 min <7, NICU admission,grade III/IV intraventricular hemorrhage (IVH), neonatal seizure and death. Logistic regression analysis was performed, ROC curves plotted and the area under the ROC curve (AUC) were compared between CPR and UCR. Results Over the study period, there were 197 women meeting inclusion criteria, of which 27 (13.7%) had a composite adverse neonatal outcome. The sensitivity using CPR Z-score for predicting the composite APO was higher thanwas similar to using UCR Z-score (39.3% compared with 37%) for a similar specificity (94.7 versus 94.1), respectively. However, the positive predictive value (PPV) was higher for CPR (55% vs UCR 50%) and the negative predictive values (NPV) were similar. For a fixed false positive rate of 10%, the detection rates for adverse neonatal outcomes were 40% using either CPR or UCR. The AUC for CPR and UCR were 0.70 and 0.68, respectively. Conclusion This study did not find any advantage in utilizing the UCR over the CPR.

Prediction of adverse neonatal outcome among newborns born through meconium-stained amniotic fluid.

To study maternal and intrapartum factors associated with adverse neonatal outcome in deliveries complicated by meconium-stained amniotic fluid (MSAF). A retrospective cohort study of all women with singleton gestations undergoing trial of labor with MSAF during 2011-2020. Deliveries with adverse neonatal outcome were compared with deliveries without. Overall, 11329 were included; 376 (3.3%) neonates were diagnosed with adverse neonatal outcomes. Multivariable regression analysis underlined the following factors as independently associated with composite adverse neonatal outcome: pregestational diabetes (odds ratio [OR] 3.21, 95% confidence interval [CI] 1.09-9.43, P=0.031), polyhydramnios (OR 2.14, 95% CI 1.33-3.44, P=0.002), fever (OR 2.52, 95% CI 1.67-3.80, P<0.001), and amnioinfusion (OR 1.73, 95% CI 1.24-2.2438, P=0.003). When 0, 1, 2, and 3 of the independent risk factors identified were present, the rates of adverse neonatal outcome were 2.9%, 5.5%, 10.0%, and 100%, respectively. The current study's results suggest that special attention should be payed to deliveries complicated by MSAF and with any of the following factors-polyhydramnios, intrapartum fever, amnioinfusion, and pregestational diabetes.

Adverse Neonatal Outcome are More Common among Babies Born by Cesarean Section than Naturally Born Babies at Public Hospitals in Eastern Ethiopia: A Comparative Prospective Follow-Up Study at Eastern Ethiopia.

The adverse neonatal outcome is defined as the presence of birth asphyxia, respiratory distress, birth trauma, hypothermia, meconium aspiration syndrome, neonatal intensive care admission, and neonatal death. It is a major concern in developing countries, including Ethiopia. This study tried to identify predictors of adverse neonatal outcomes at selected public hospitals in Eastern Ethiopia. A hospital-based prospective follow-up study was conducted in three public hospitals in Eastern Ethiopia from June to October 2020. A total of 2,246 laboring women and neonates born at the hospitals were enrolled in the study. Data were collected through interviews, observation checklists, and clinical chart review. Reports were presented in relative risks with 95% CIs. The overall magnitude of adverse neonatal outcome was 20.97% (95% CI: 19.33- 22.71%). It was 24.3% for babies born through cesarean section (95% CI: 21.3%, 27.5). The presence of meconium in the amniotic fluid increased the risk for neonates delivered via cesarean section (ARR, 1.52 95% CI; 1.04, 2.22). Among neonates born via vaginal delivery, the risk of adverse neonatal outcome was higher among nullipara women (ARR, 1.42 95% CI; 1.02, 1.99) and among women diagnosed with abnormal labor or pregnancy such as APH, pre-eclampsia, obstructed labor, fetal distress, and mal-presentation at admission (ARR, 1.30 95%CI; 1.01, 1.67). The risk of adverse neonatal outcome was higher among babies born through the cesarian section than those born via vaginal delivery. Abnormal labor or pregnancy and being primiparous increased the risk of adverse neonatal outcome in vaginal delivery.

A Comparative Study on Adverse Pregnancy Outcomes in Pregnant Women with Different Age

Introduction: Delayed childbearing is increasing. Increased maternal age has been associated with increased risk of pregnancy complications. On the other hand, the adolescent pregnancy has traditionally been considered high-risk, especially in developing countries. Objective: This study aimed to compare the adverse pregnancy outcomes in different age groups of pregnant women. Materials and Methods: The analytical study with cross-sectional design was conducted on 345 pregnant women referred to one of the maternity hospitals in Rasht, Iran in 2018 who were selected by sequential sampling method. They were followed from gestational age &gt;37 weeks until delivery in 3 groups: &lt;19 years, 19-35 years and &gt;35 years. The data collection tool was a two-part researcher-made questionnaire which surveys demographic, fertility, and socioeconomic information and adverse maternal and neonatal outcomes. The collected data were analyzed using descriptive and inferential statistics (Chi-square test, Fisher’s exact test, Kruskal-Wallis test, ANOVA, Bonfrroni test, Spearman correlation test, and multiple linear regression analysis). Results: The highest prevalence of maternal diabetes mellitus (29.7%) and cesarean section (72.46%) were reported in the age group &gt;35 years. The highest frequency of premature rupture of membranes (18.8%) and abnormal fetal presentation (13.8 %) were reported in age groups &lt;19 years and 19-35 years, respectively. Among maternal outcomes, maternal diabetes, abnormal fetal presentation, premature rupture of membranes and delivery by cesarean section were significantly different between three groups (P&lt;0.05). There was a significant difference between maternal age and neonatal outcomes in ages groups &lt;19 years and 19-35 years (P&lt;0.05). Multiple linear regression model showed that the maternal age &lt;19 years was a predictor of adverse neonatal outcomes. The group &lt;19 years reported more adverse outcomes than the age group 19-35 years (β=0.282, 95% CL: 0.002-0.561, P=0.049). Conclusion: All age groups of pregnant women faced some pregnancy outcomes. Due to Iran’s new plan to encourage childbearing, prenatal screening, and receiving more prenatal care, we recommend pregnant women to participate in childbirth preparation training courses.