scholarly journals Correction to: Predictors of survival of very preterm births (born between 23 and 29 weeks’ gestation) at a tertiary care center in Karachi, Pakistan: additional multivariate analyses on data from primary cohort

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Mohammad Yawar Yakoob
2019 ◽  
Author(s):  
Mohammad Yakoob

Abstract Objective: Previously, we have published univariate analyses on a cohort of all singleton, very preterm infants (N=101) born between 23 and 29 weeks of gestation during January 01, 1998 to June 30, 2003 at The Aga Khan University Hospital in Karachi, Pakistan. Our main objective was to extend these analyses to multivariate logistic regression models and report Odds Ratios (ORs) for univariate and multivariate analyses. All variables in univariate were included in multivariate models. Results: The survival incidences were 0% at 23, 16.7% at 24, 40.0% at 25, 30.0% at 26, 33.3% at 27, 68.8% at 28 and 83.9% at 29 weeks of gestation. In univariate analyses, gestational age, birth-weight and mode of delivery (Cesarean-section had higher survival compared to vaginal) were statistically significant predictors of survival (P≤0.001 each). Other variables that also included antenatal steroids did not achieve significance. However, in complete-case multivariate analyses, only gestational age (per week) was associated with survival (OR=2.5, 95% CI: 1.1–5.5, P=0.03); birth-weight (per 100 grams) and C-section were not associated-1.2, 0.88–1.6, P=0.26 and 2.4, 0.48–12.2, P=0.28. Antenatal steroid use, maternal age, year of birth, parity, history of preterm delivery, hemoglobin levels, complications and time of birth remained not associated.


2019 ◽  
Author(s):  
Mohammad Yakoob

Abstract Objective: Previously, we have published univariate analyses on a cohort of all singleton very preterm infants (N=101) born between 23 and 29 weeks of gestation during January 01, 1998 to June 30, 2003 at The Aga Khan University Hospital in Karachi, Pakistan. Our main objective was to extend these analyses to multivariate logistic regression models and report Odds Ratios (ORs) for univariate and multivariate analyses. All variables in univariate were included in multivariate models. Results: The survival incidences were 0% at 23, 16.7% at 24, 40.0% at 25, 30.0% at 26, 33.3% at 27, 68.8% at 28 and 83.9% at 29 weeks of gestation. In univariate analyses, gestational age, birth-weight and mode of delivery (Cesarean-section had higher survival compared to vaginal) were statistically significant predictors of survival (P≤0.001 each). Other variables that also included antenatal steroids did not achieve significance. However, in complete case multivariate analyses, only gestational age (per week) was associated with survival (OR=2.5, 95% CI: 1.1–5.5, P=0.03); birthweight and C-section were not associated-1.2, 0.88–1.6, P=0.26 and 2.4, 0.48–12.2, P=0.28. Antenatal steroid use, maternal age, year of birth, parity, history of preterm delivery, hemoglobin levels, complications and time of birth remained not associated.


2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Mohammad Yawar Yakoob

Abstract Objective Previously, we have published univariate analyses on a cohort of all singleton, very preterm infants (N = 101) born between 23 and 29 weeks of gestation during January 01, 1998 to June 30, 2003 at The Aga Khan University Hospital in Karachi, Pakistan. Our main objective was to extend these analyses to multivariate logistic regression models and report odds ratios (ORs) for univariate and multivariate analyses. All variables in univariate were included in multivariate models. Results The survival incidences were 0% at 23, 16.7% at 24, 40.0% at 25, 30.0% at 26, 33.3% at 27, 68.8% at 28 and 83.9% at 29 weeks of gestation. In univariate analyses, gestational age, birth-weight and mode of delivery (cesarean-section had higher survival compared to vaginal) were statistically significant predictors of survival (P ≤ 0.001 each). Other variables that also included antenatal steroids did not achieve significance. However, in complete-case multivariate analyses, only gestational age (per week) was associated with survival (OR = 2.5, 95% CI 1.1–5.5, P = 0.03); birth-weight (per 100 g) and C-section were not associated-1.2, 0.88–1.6, P = 0.26 and 2.4, 0.48–12.2, P = 0.28. Antenatal steroid use, maternal age, year of birth, parity, history of preterm delivery, hemoglobin levels, complications and time of birth remained not associated.


2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Laxman Paudel ◽  
Balkrishna Kalakheti ◽  
Kiran Sharma

Introduction: Preterm deliveries contribute to major morbidity and mortality in developing countries. They are a leading cause of admission in neonatal care units. Advances in the management have ensured better survival of preterm births, however cost, care and resource limitations influence the outcome.This study was conducted to determine the prevalence, risk factors, morbidity patterns and outcome of preterm admissions to a neonatal unit of a tertiary care center. Methods: This was a retrospective study where all preterm admissions over a period of two years were evaluated for maternal risk factors and morbidity pattern. Outcome was measured in terms of survival rate and case fatality rate. Mann Whitney U test and Fisher's Exact test were used to see the association between various parameters and clinical outcome. Results: Preterm admissions constituted16.48% of all neonatal unit admissions with a male to female ratio of 1.32:1. Common risk factors for preterm births were Prelabour Rupture of Membrane (31.2%) followed by Hypertensive Disorders in Pregnancy (15.1%) and Antepartum Hemorrhage (8.6%). Common morbidities were Sepsis (40.9%), Jaundice (28%) and Respiratory Distress Syndrome (RDS) (14%). Case fatality rate was significantly high in RDS (45.1%) and perinatal asphyxia (11.1%). Overall survival rate was 75.26%. Conclusion: Preterm births were an important cause for admissions in neonatal unit. Sepsis, jaundice, RDS and necrotizing enterocolitis were common morbidities observed. Since clinical outcome was related to gestational age, improving antenatal care, timely interventions and early referral of high risk pregnancies to tertiary level centers might improve the survival rate


2019 ◽  
Author(s):  
Mohammad Yakoob

Abstract Objective: Previously, we have published univariate analyses on a cohort of all singleton, very preterm infants (N=101) born between 23 and 29 weeks of gestation during January 01, 1998 to June 30, 2003 at The Aga Khan University Hospital in Karachi, Pakistan. Our main objective was to extend these analyses to multivariate logistic regression models and report Odds Ratios (ORs) for univariate and multivariate analyses. All variables in univariate were included in multivariate models. Results: The survival incidences were 0% at 23, 16.7% at 24, 40.0% at 25, 30.0% at 26, 33.3% at 27, 68.8% at 28 and 83.9% at 29 weeks of gestation. In univariate analyses, gestational age, birth-weight and mode of delivery (Cesarean-section had higher survival compared to vaginal) were statistically significant predictors of survival (P≤0.001 each). Other variables that also included antenatal steroids did not achieve significance. However, in complete-case multivariate analyses, only gestational age (per week) was associated with survival (OR=2.5, 95% CI: 1.1–5.5, P=0.03); birth-weight (per 100 grams) and C-section were not associated-1.2, 0.88–1.6, P=0.26 and 2.4, 0.48–12.2, P=0.28. Antenatal steroid use, maternal age, year of birth, parity, history of preterm delivery, hemoglobin levels, complications and time of birth remained not associated.


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