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OBJECTIVE: To derive and validate internally a novel risk assessment tool to identify young children at risk for all-cause mortality ≤60 days of discharge from hospitals in sub-Saharan Africa. STUDY DESIGN: We performed a prospective observational cohort study of children aged 1-59 months discharged from Muhimbili National Hospital in Dar es Salaam, Tanzania and John F. Kennedy Medical Center in Monrovia, Liberia (2019-2022). Caregivers received telephone calls up to 60 days after discharge to ascertain participant vital status. We collected socioeconomic, demographic, clinical, and anthropometric data during hospitalization. Candidate variables with P < .20 in bivariate analyses were included in a multivariable logistic regression model with best subset selection to identify risk factors for the outcome. We internally validated our tool using bootstrapping with 500 repetitions. RESULTS: There were 1933 young children enrolled in the study. The median (IQR) age was 11 (4, 23) months and 58.7% were males. In total, 67 (3.5%) died during follow-up. Ten variables contributed to our tool (total possible score 82). Cancer (aOR 10.6, 95% CI 2.58, 34.6), pedal edema (aOR 6.94, 95% CI 1.69, 22.6), and leaving against medical advice (aOR 6.46, 95% CI 2.46, 15.3) were most predictive of post-discharge mortality. Our risk assessment tool demonstrated good discriminatory value (optimism corrected area under the receiver operating characteristic curve 0.77), high precision, and sufficient calibration. CONCLUSIONS: After validation, this tool may be used to identify young children at risk for post-discharge mortality to direct resources for follow-up of high-risk children.

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OBJECTIVE: To identify demographic, clinical, and hospital factors associated with mortality on readmission within 180 days following an inpatient hospitalization. STUDY DESIGN: We conducted a retrospective cohort study including 33 US children's hospitals in the Pediatric Health Information System from January 2010 to June 2020. Our primary outcome was death during readmission within 180 days of an index hospitalization among children aged 0-18 years. Illness severity during the index hospitalization was defined according to the All Patient-Refined Diagnosis-Related Group-categorized illness severity (ie, minor, moderate, or major/extreme). We performed multivariable logistic regression analysis to identify factors during the index hospitalization associated with mortality during readmission. RESULTS: Among 2 677 111 children discharged, 337 385 (12.6%) were readmitted within 180 days of the index hospitalization and 2913 (0.8%) died during readmission. More than one-quarter (26.2%) of deaths among children who were readmitted and died occurred within 10 days after discharge from the index hospitalization. Factors independently associated with mortality during readmission included multiple complex chronic conditions, index admissions lasting >7 days, moderate or severe/extreme illness during the index hospitalization, and public insurance. Children whose race was reported as Black had greater odds of mortality during readmission compared with children of other races. CONCLUSIONS: Among hospitalized children, several demographic and clinical factors present during index hospitalizations were associated with mortality during readmission. Greater odds of mortality during readmission among children whose race was reported as Black likely reflects disparities in social determinants of health and clinical care. Interventions to reduce mortality during readmission may target high-risk populations in the period immediately following discharge.

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OBJECTIVE: To evaluate emergency department (ED) pediatric mortality by patient neighborhood income. STUDY DESIGN: We calculated the incidence of ED pediatric mortality via a cross-sectional study of children <18 years who died in an ED using the Nationwide Emergency Department Sample and US Census from 2012 to 2016. The main exposure was median income for the patient's zip code tabulation area quartile. To determine factors associated with ED mortality, we modeled mortality using negative binomial regression. We used an interaction term between neighborhood income and insurance type to evaluate their relationship to mortality. RESULTS: There were 64 893 ED deaths during the study period (incidence 17.3 per 100 000 person-years). The incidence of ED mortality increased with decreasing neighborhood income: compared with the wealthiest income quartile, the poorest, second, and third quartiles had adjusted incidence rate ratios (aIRRs) of 1.79 (95% CI 1.63-1.96), 1.42 (95% CI 1.29-1.55), and 1.23 (95% CI 1.12-1.36), respectively. The incidence of ED mortality was greater among uninsured children (aIRR 4.96, 95% CI 4.55-5.41) and publicly insured children (aIRR 2.69, 95% CI 2.51-2.88) compared with privately insured children. The interaction term showed no consistent relationship between neighborhood income and insurance with ED mortality. CONCLUSIONS: Children from poorer neighborhoods have greater ED mortality rates than children from greater-income neighborhoods. Improved access to health insurance in the US may lead to reduced pediatric mortality, as ED mortality was greatest in uninsured children. Development of interventions to improve upstream determinants of health that contribute to ED mortality are needed.

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OBJECTIVE: To evaluate the impact of Peru's national folic acid fortification program on folic acid content in wheat flour, and the effect on birth prevalence of neural tube defects (NTDs) in Lima, and to compare the program's legislative requirements with international standards. METHODS: Bread was sampled from six sites across Peru and tested for folic acid. Data were obtained from the largest obstetric hospital in Lima on the prevalence of births (live and still) with NTDs during both the pre-fortification period (2004-2005) and post-fortification years (2007-2008). RESULTS: Folic acid content in the sampled bread met national legislative requirements but was less than one-half of the level recommended for Peru by the World Health Organization (WHO) (2.6 mg/kg wheat flour). Birth prevalence of NTDs was 18.4/10 000 in the pre-fortification period and 20.0/10 000 during post-fortification years. Relative risk for NTDs after fortification was 1.02 (95% confidence interval 0.77-1.35, P = 0.90). CONCLUSIONS: Peruvian legislative requirements for folic acid fortification are below international (WHO) recommendations; birth prevalence of NTDs in Lima is higher than international benchmarks; and no decrease in NTDs following fortification of flour with folic acid (according to Peruvian national standards) was observed. As increasing the level of folic acid in flour remains the most sustainable way of preventing NTDs, it is recommended that Peru increase its folic acid fortification requirements to meet those recommended by WHO (2.6 mg/kg).

OBJETIVO: Evaluar la repercusión que el programa nacional del Perú de fortificación con ácido fólico tiene en el contenido de ácido fólico de la harina de trigo y en la prevalencia de nacimientos de niños con defectos del tubo neural en Lima, así como comparar los requisitos legislativos del programa con las normas internacionales. MÉTODOS: Se hizo un muestreo del pan en seis zonas de Perú y se analizó su contenido de ácido fólico. Se obtuvieron datos del mayor hospital obstétrico de Lima referentes a la prevalencia de nacimientos de niños vivos o mortinatos con defectos del tubo neural durante el período anterior a la fortificación (2004-2005) y el posterior a la misma (2007-2008). RESULTADOS: El contenido de ácido fólico en las muestras de pan obtenidas satisfizo los requisitos legislativos nacionales, si bien fue inferior a la mitad de la concentración que la Organización Mundial de la Salud (OMS) recomienda para el Perú (2,6 mg/kg de harina de trigo). La prevalencia de nacimientos de niños con defectos del tubo neural fue de 18,4/10 000 en el período anterior a la fortificación y de 20,0/10 000 en los años posteriores a la fortificación. El riesgo relativo de los defectos del tubo neural después de la fortificación fue de 1,02 (intervalo de confianza de 95%: 0,77-1,35; P = 0,90). CONCLUSIONES: Los valores que la legislación peruana exige en lo que respecta a la fortificación con ácido fólico son inferiores a los que se recomiendan internacionalmente (OMS). La prevalencia de nacimientos de niños con defectos del tubo neural en Lima es superior a las cifras de referencia internacionales. Por otra parte, no se observó ninguna disminución de los defectos del tubo neural después de fortificar la harina con ácido fólico (según los valores normalizados nacionales peruanos). Dado que el aumento de la concentración de ácido fólico en la harina sigue siendo la manera más sostenible de prevenir los defectos del tubo neural, se recomienda que el Perú haga más estrictos los requisitos relativos a la fortificación con ácido fólico para ajustarse a los valores recomendados por la OMS (2,6 mg/kg).

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OBJECTIVE: To evaluate the impact of Peru's national folic acid fortification program on folic acid content in wheat flour, and the effect on birth prevalence of neural tube defects (NTDs) in Lima, and to compare the program's legislative requirements with international standards. METHODS: Bread was sampled from six sites across Peru and tested for folic acid. Data were obtained from the largest obstetric hospital in Lima on the prevalence of births (live and still) with NTDs during both the pre-fortification period (2004-2005) and post-fortification years (2007-2008). RESULTS: Folic acid content in the sampled bread met national legislative requirements but was less than one-half of the level recommended for Peru by the World Health Organization (WHO) (2.6 mg/kg wheat flour). Birth prevalence of NTDs was 18.4/10 000 in the pre-fortification period and 20.0/10 000 during post-fortification years. Relative risk for NTDs after fortification was 1.02 (95% confidence interval 0.77-1.35, P = 0.90). CONCLUSIONS: Peruvian legislative requirements for folic acid fortification are below international (WHO) recommendations; birth prevalence of NTDs in Lima is higher than international benchmarks; and no decrease in NTDs following fortification of flour with folic acid (according to Peruvian national standards) was observed. As increasing the level of folic acid in flour remains the most sustainable way of preventing NTDs, it is recommended that Peru increase its folic acid fortification requirements to meet those recommended by WHO (2.6 mg/kg).

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