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The purpose of this study was to evaluate the relationship between the presence of pneumonia and blood parameters in cases of Coronavirus disease (COVID-19) and to examine their predictive characteristics in terms of pneumonia. We reviewed the file records of 151 pediatric patients with a diagnosis of COVID-19 confirmed by the real time-reverse transcription polymerase chain reaction test in nasopharyngeal swabs. The patients were divided into two groups based on direct chest X-ray and computed tomography results in [Group 1 (n:41), with pneumonia findings, and Group 2 (n:110), with no pneumonia findings]. The groups’ demographic data, clinical and laboratory findings were compared. Pulmonary involvement was determined in 41 (27.1%) of the 151 patients. The [body mass index (BMI) Z-score], red blood cell distribution width (RDW), mean platelet volume (MPV), neutrophil lymphocyte ratio, passive leg raise, and D-dimer levels were significantly higher in patients with pneumonia than those without pneumonia in our study. Based on multivariate logistic regression analysis, BMI Z-score, MPV, and RDW were found to be independent risk factors of pneumonia in patients. The current study showed higher levels of blood parameters in patients with coronavirus disease 2019 (COVID -19) presenting with pneumonia than those without pneumonia. We suggest that BMI-Z score and MPV value may assist in predicting pulmonary involvement in patients with COVID-19.

Objective: Long recreational screen time affects many aspects of children's health. We aimed to assess the association of screen time with isometric back and leg muscle strength in school-aged children. Method: Healthy children aged between 7-11 years were enrolled in this study. Gender of the children, their weight, and height at enrollment were recorded. A research assistant surveyed the parents of each child with face-to-face interview technique in order to analyse child's screen-viewing behavior. Children participating in the study were divided into 2 groups according to their average daily screen time (group 1: ≤ 2 hours, group 2: >2 hours). The children in Groups 1 and 2 were also divided into subgroups according to their body mass index (BMI) percentiles. The back and leg muscle strength were measured by using isometric back-leg strength dynamometer. The demographic characteristics, BMI Z-scores and the back and leg muscle strength of the children in groups were compared statistically. Results: A total of 307 children including 103 boys (33.6%) and 204 girls (66.4%) were enrolled in the study. There were 204 (66.4%) and 103 (33.6%) children in groups 1 and 2, respectively. There was no statistically significant difference between the two groups in terms of back and leg muscle strength. The BMI Z-score of children positively correlated with their back and leg muscle strength, respectively. Conclusion: This study could not find an association between screen time and both back and leg muscle strength of children. There is a need for further studies to analyse the effects of other confounding factors such as physical activity, sedentary behaviors, sleep duration and quality, sociodemographic factors and seasonal influence in associaton with screen time in muscle strength outcome measures in children.

Aim: We aimed to reveal the similarities and differences between the rare and severe multisystem inflammatory syndrome (MIS-C) and active familial Mediterranean fever (FMF) disease in children. Our study may help in the early recognition of MIS-C syndrome in children and distinguish it from other diseases with similar symptoms. Methods: We evaluated the demographic and clinical characteristics, laboratory findings, treatments and outcomes of patients with MIS-C syndrome and active FMF. Results: The clinical and laboratory findings of a total of 66 patients hospitalized in our pediatric clinic with the diagnosis of active FMF (n: 42) and MIS-C syndrome (n: 24) were reviewed retrospectively. The reason for pediatric emergency admission was determined as resistant fever in all patients. When the clinical findings of the patients were compared, it was determined that joint and abdominal pain in the FMF group and vomiting, rash, cough, Lenfadenopati (LAP) and myalgia findings in the MIS-C group were statistically significantly higher (p