Background: Lower respiratory tract infections (LRTIs) are the most common cause for hospitalization in pediatric patients. Pediatric patients with LRTIs are at an increased risk of morbidity and mortality. The national data analysis of epidemiologic variations facilitates awareness and develops solutions to prevent these conditions in the future.Objective: This study aims to evaluate the epidemiology, causative pathogens, morbidity, and mortality of LRTIs in pediatric patients of Thailand from 2015 to 2019.Methods: This was a retrospective study among pediatric patients aged between 0 and 18 years old admitted in hospitals due to LRTIs in Thailand from January 2015 to December 2019. The data were extracted from National Health Security Office using the International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Thai Modification; ICD‐10‐TM of J09 to J22.Results: A total of 1,423,509 children hospitalized due to LRTIs were identified. Most of the patients were of age 1–5 years. Pneumonia was the most common LRTI (876,557 children, 61.58%) in hospitalized children. Respiratory syncytial virus (RSV) is the main etiologic pathogen of bronchiolitis, which presents in approximately 10.86% of all episodes. Influenza viruses were found predominantly in children with pneumonia (15.52%). The mortality rate since 2015–2019 was highest in pneumonia under 1 year old (P < 0.001). Pneumonia in children under 5 years old had the highest mortality rate, which accounted for 11.85 per 100,000 children in 2019.Conclusions: LRTIs had a high incidence rate of hospitalization and mortality, especially in children under 5 years old. Influenza virus was the most common pathogen of pneumonia.

Objectives: This study sought to determine the epidemiology, seasonal variations, morbidity, and mortality of respiratory syncytial virus (RSV) infection among hospitalized children with lower respiratory tract infection in Thailand. In addition, we assessed the risk factors associated with severe RSV lower respiratory tract infection (LRTI)-related morbidity and mortality. Methods: The data were reviewed retrospectively from the National Health Security Office for hospitalized children younger than 18 years old diagnosed with RSV-related LRTI in Thailand, between the fiscal years of 2015 to 2020. The RSV-related LRTIs were identified using the International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Thai Modification. ICD-10-TM codes J12.1, J20.5, and J21.0, which represent respiratory syncytial virus pneumonia, acute bronchitis due to respiratory syncytial virus, and acute bronchiolitis due to respiratory syncytial virus, respectively, were studied. Results: During the study period, RSV-related LRTI accounted for 19,340 of the 1,610,160 hospital admissions due to LRTI. RSV pneumonia was the leading cause of hospitalization (13,684/19,340; 70.76%), followed by bronchiolitis (2849/19,340; 14.73%) and bronchitis (2807/19,340; 14.51%), respectively. The highest peak incidence of 73.55 percent occurred during Thailand’s rainy season, from August to October. The mortality rate of RSV-related LRTI in infants younger than 1 year of age was 1.75 per 100,000 person years, which was significantly higher than that of children 1 to younger than 5 years old and children 5 to younger than 18 years old (0.21 per 100,000 person years and 0.01 per 100,000 person years, respectively, p-value < 0.001). Factors associated with mortality were congenital heart disease, hematologic malignancy, malnutrition, and neurological disease. Conclusions: In children with RSV LRTI, pneumonia was the leading cause of hospitalization. The admission rate was highest during the rainy season. Mortality from RSV-related LRTI was higher in children under 1 year old and in children with underlying illnesses; future preventive interventions should target these groups of patients.

Background: The COVID-19 outbreak emerged in January 2020 and remains present in 2022. During this period, nonpharmaceutical interventions (NPIs) have been used to reduce the spread of COVID-19 infection. Nationwide data analysis should be pushed as the new standard to demonstrate the impact of COVID-19 infection on other respiratory illnesses and the reliability of NPIs during treatment. Objective: This study aims to identify and compare the incidence of lower respiratory tract infections (LRTIs) among children in Thailand before and after the emergence of COVID-19. Methods: A retrospective study was carried out in hospitalized children under the age of 18 in Thailand from October 2015 to September 2020. The International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Thai Modification, was used to identify patient diagnoses (ICD-10-TM). The data were extracted from the Universal Coverage Health Security Scheme Database. Results: A total of 1,610,160 admissions were attributed to LRTIs. The most common diagnosis was pneumonia (61.9%). Compared to the 2019 fiscal year, the number of hospitalizations due to LRTIs decreased by 33.9% in the 2020 fiscal year (COVID-19 period) (282,590 vs. 186,651). The incidence of all three diagnostic groupings was substantially lower in the pre- and post-COVID-19 eras, with a decrease of 28% in the pneumonia group (incidence rate ratio (IRR) = 0.72; 95% confidence interval (CI): 0.71 to 0.72), 44% in the bronchiolitis group (IRR = 0.56; 95% CI: 0.55 to 0.57), and 34% in the bronchitis group (IRR = 0.66; 95% CI: 0.65 to 0.67). Between fiscal years 2019 and 2020, the overall monthly cost of all hospitalizations for LRTIs decreased considerably (p value < 0.001). Conclusions: NPIs may decrease the number of pediatric hospitalizations related to LRTIs. All policies designed to prevent the spread of COVID-19 must be continually utilized to maintain the prevention of LRTIs.

Background: Sepsis remains one of the leading causes of morbidity and mortality in critically ill children worldwide. Identifying reliable prognostic markers is essential for improving risk stratification and guiding targeted therapies. While some studies in adults suggest that procalcitonin (PCT) clearance may better predict sepsis outcomes, there is limited information regarding pediatric sepsis. This study aimed to evaluate whether PCT clearance is associated with mortality among children with severe sepsis and septic shock. Methods: We retrospectively reviewed medical records of children aged 1 month to 18 years admitted to the PICU who were diagnosed with severe sepsis and septic shock at Srinagarind Hospital, Thailand, between January 2016 and October 2021. Serum PCT was measured at 0, 24, and 48 hours after the initial diagnosis. PCT clearance was calculated using the relative change from baseline. The primary outcome was in-hospital mortality. Results: A total of 242 children were included, with a median age of 8 years (interquartile range [IQR]: 3–14). Most participants (62.8%) had no underlying conditions. The overall mortality rate was 26.5%. An initial PCT level > 2 ng/mL was not significantly associated with mortality (adjusted odds ratio [aOR] = 1.17; 95% confidence interval [CI]: 0.44–3.16, p = 0.8). However, decreased PCT clearance at 24 hours was strongly associated with mortality (aOR = 2.79; 95% CI: 1.11–7.01, p = 0.029). The area under the receiver operating characteristic curve for 24-hour PCT clearance to predict mortality was 0.71 (95% CI: 0.63–0.80). Conclusions: Lower PCT clearance in the first 24 hours was significantly associated with higher mortality in pediatric patients with sepsis. Serial PCT measurements and PCT clearance monitoring may offer valuable prognostic information and could be considered as part of routine clinical evaluations in pediatric sepsis management.

Background: Pneumonia ranks as a leading contributor to hospital admissions and mortality among children worldwide. This study aimed to investigate the association between aerosol components of air pollution and pediatric pneumonia hospitalization. Methods: Employing an observational study design, data from hospitalized children under 15 years diagnosed with pneumonia in Thailand from 2015 to 2019 were analyzed to ascertain the relationship between air pollution and health outcomes. Utilizing the Modern‐Era Retrospective analysis for Research and Application version 2 (MERRA‐2) data for aerosol components, and adjusting for demographic and geographical factors, using Poisson regression models. Results: A total of 732,700 children were hospitalized with pneumonia, with children under the age of five accounting for the majority of admissions (637,313 cases, 86.9%). Dust had the strongest association with the incidence rate ratio of hospitalization in children with pneumonia across all age groups. The incidence rate ratio was 1.288 (95% CI: 1.271–1.304, p < 0.001), 1.392 (95%CI: 1.344–1.442, p < 0.001), and 1.349 (95%CI: 1.265–1.439, p < 0.001) for children under the age of 5, 5 to under 10, and 10 to under 15, respectively. The association of hospitalization among children with pneumonia increased by 21.0% and 13.8% for each 1 μg/m3 increase in black carbon and dust levels, respectively. Conclusion: The findings reveal a compelling link between certain air pollutants and pediatric pneumonia hospitalization, highlighting the urgent need for targeted interventions to mitigate air pollution's adverse effects.

Background: Atopic dermatitis (AD) is a chronic inflammatory skin disorder common in children. Successful pediatric AD therapy requires parental assistance. Thus, evaluating parental knowledge, attitudes, and behaviors regarding childhood AD may lead to more educational recommendations to help children control AD in the future. This study examined parents’ knowledge, attitudes, and conduct concerning AD in families with and without children with AD. Method: The Pediatric Department, Faculty of Medicine, Khon Kaen University, Thailand, conducted a cross-sectional study from June to December 2023. Parents of children who visited the dermatology clinic with or without AD were asked to complete a Google form questionnaire. Results: A total of 372 parents answered a questionnaire about AD pathophysiology, knowledge, attitudes, and practices. The participants were 293 (78.8%) female participants and 79 (21.2%) male participants. The average age was 29.79 (SD 4.91). Most parents (319, 85.8%) did not work in the medical field, and more than half (228 instances, 61.29%) had children diagnosed with AD. Conclusions: Parents of children with AD understood AD causes and triggers better than parents of children without AD. But, “exposure to furry toys” that may contain dust and allergies and “infection” that may cause AD flare-ups were the most common triggers, regardless of the group. Appropriate information should be supplied because both the parents of children with AD and those of children without AD reported immediate food avoidance without confirmatory testing, which might lead to malnutrition. Clinicians and families handling patients with AD require further education.