Dataset from: Frequency of Congenital Heart Diseases and Factors Associated with In-Hospital Mortality of Children in the Central Region of Angola, 2022–2023

This record contains the anonymized, aggregated dataset supporting the findings of the article "Frequency of Congenital Heart Diseases and Factors Associated with In-Hospital Mortality of Children in the Central Region of Angola, 2022–2023" (Canania KT, Sobral Filho DC, Canania ANE, Nhamba LA, Montorroyos UR). The study was a cross-sectional, hospital-based investigation conducted in the Pediatrics Department of Huambo General Hospital, Angola, between January 2022 and December 2023, based on 220 medical records of children aged 0–12 years diagnosed with congenital heart disease (CHD). This file contains AGGREGATED, SUMMARY-LEVEL data only — counts, percentages, 95% confidence intervals, odds ratios and p-values exactly as reported in the published tables of the source article. It does NOT contain individual-level patient records, case identifiers, dates of birth, admission dates, or any other direct or indirect patient identifier. Contents (Excel workbook, 8 sheets):1. README — study metadata, anonymization statement, citation and license information2. Hospital-level frequency of CHD (2022–2023)3. Child demographic characteristics (Table 1)4. Maternal characteristics (Table 2)5. CHD classification, type and clinical outcome (Table 3)6. Bivariate analysis – demographic factors and mortality (Table 4)7. Bivariate analysis – maternal and CHD-related factors and mortality (Table 5)8. Multivariate logistic regression – factors associated with mortality (Table 6) The original individual-level dataset, extracted from medical records, is not publicly available due to confidentiality restrictions imposed by Huambo General Hospital, but is available from the corresponding author on reasonable request and with permission from Huambo General Hospital. Funding: This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES), Finance Code 001. Ethics approval: Directorate and Ethics Committee of Huambo General Hospital, Angola (Order 646 DPC/HGH/2023); Research Ethics Committee, Brazil, CNS Resolution 466/2012, approval opinion 7,694,497, CAAE 88831425.8.0000.5192.