Feasibility of Absent in Melanoma 2 as a Serological Marker in Relation to Complicated Community-Acquired Pneumonia in Children: A Prospective Cohort Study
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Résumé
Linjie Hu,1 Peng Zhou,1 Shanlin Wang,2 Yaping Shen,1 Suli Xing,1 Yuehan Zhang,1 Yanyan Zhu2 1Department of Pediatric, Shengzhou People’s Hospital (Shengzhou Branch of The First Affiliated Hospital of Zhejiang University School of Medicine, The Shengzhou Hospital of Shaoxing University), Shengzhou, Zhejiang, 312400, People’s Republic of China; 2Department of Pediatric, Hangzhou Children’s Hospital, Hangzhou, Zhejiang, 310014, People’s Republic of ChinaCorrespondence: Yanyan Zhu, Department of Pediatric, Hangzhou Children’s Hospital, 195 Wenhui Road, Hangzhou, Zhejiang, 310014, People’s Republic of China, Email zhyy0505@163.comObjective: Absent in melanoma 2 (AIM2) is associated with inflammation. We intended to determine whether serum AIM2 levels are related to severity and complications of community-acquired pneumonia (CAP) in children.Methods: In this prospective cohort study, serum AIM2 levels were measured in 305 children with CAP and in 100 healthy controls at the Hangzhou Children’s Hospital between January 2022 and June 2023. CAP severity was assessed using the pediatric critical illness score (PCIS) and clinical pulmonary infection score (CPIS). In-hospital complicated CAP was identified as the outcome variable. Univariate and multivariate analyses were sequentially performed to determine the correlation between severity, outcome and serum AIM2 levels.Results: Children with CAP had higher serum AIM2 levels than controls (median, 1.45 ng/mL versus 0.36 ng/mL; P< 0.001). Serum AIM2 levels in diseased children were independently correlated with PCIS (beta=− 0.020; P=0.001) and CPIS (beta=0.092; P=0.002), were linearly related to likelihood of complicated CAP (P for nonlinear =0.057), and were independently associated with complicated CAP (odds ratio= 6.162; P=0.005). The outcome association was robust by calculating the E-value at 11.8 and was not moderated by age, sex, weight and more (all P interaction > 0.05). Serum AIM2 levels and two independent predictors, PCIS and CPIS, were integrated to construct the model. The model was pictorially represented by the nomogram and exhibited satisfactory discrimination capability, validity, and stability under the receiver operating characteristic (ROC) curve, decision curve, and calibration curve. By computing the net reclassification improvement and integrated discrimination improvement indices and comparing the area under the ROC curve, the model significantly outperformed the combination of the PCIS and CPIS.Conclusion: Markedly enhanced serum AIM2 levels following CAP in children are highly linked to severity and complicated CAP, substantializing serum AIM2 as a biochemical metric for assessing the severity and identifying adverse outcomes of childhood CAP.Keywords: community-acquired pneumonia, children, absent in melanoma 2, outcomes, severity, biomarkers
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Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,015 | 0,004 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,003 | 0,007 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,001 | 0,002 |
| Science ouverte | 0,004 | 0,002 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle