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. 2024 Jun 21;50(1):119.
doi: 10.1186/s13052-024-01688-9.

Trends in hospitalizations of children with respiratory syncytial virus aged less than 1 year in Italy, from 2015 to 2019

Affiliations

Trends in hospitalizations of children with respiratory syncytial virus aged less than 1 year in Italy, from 2015 to 2019

Renato Cutrera et al. Ital J Pediatr. .

Erratum in

Abstract

Background: Respiratory syncytial virus (RSV) affects 60-80% of children below 1 year and it's the first cause of acute bronchiolitis. The aim of this study was to assess the trend and characteristics of hospitalizations for RSV infections in Italy.

Methods: This is a retrospective study based on the Italian Hospital Discharge Record (HDR) database. We analysed HDRs from June 2015 to May 2019, considering two groups of infants: Group 1 had a confirmed diagnosis of RSV; Group 2 had a diagnosis of acute bronchiolitis not RSV-coded.

Results: There were 67,746 overall hospitalizations (40.1% Group 1, and 59.9% Group 2). Hospitalization rate increased for Group 1 from 125 to 178 per 10,000 infants (+ 42.4%), and for Group 2 from 210 to 234 per 10,000 (+ 11.4%). The mean hospitalization length was 6.3 days in Group 1, longer than Group 2 (+ 1.0 day). A further analysis revealed that infants with heart disease or born premature had longer mean hospital stay compared to infants without risk factors (10.7 days versus 6.1 days, p < 0.0001; 34.0 days versus 6.1 days, p < 0.0001, respectively). Group 1 required more critical care (oxygen therapy and/or mechanical ventilation) than Group 2. We found that, in proportion to hospital admissions in pediatric and general hospitals, RSV was more frequently diagnosed in the first ones. The mean hospitalization cost increased for Group 1 (from € 2,483 to € 2,617) and Group 2 (from € 2,007 to € 2,180).

Conclusions: Our results confirmed that RSV pulmonary disease in infants is seasonal and often requires hospitalization. Our study suggested that RSV is responsible for an increasing hospitalization rate and related costs during the study period.

Keywords: Burden; Hospital discharge record; Hospitalization; Infants; Italy; RSV; Respiratory syncytial virus.

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Conflict of interest statement

RC, ACV, LO were paid consultants to Pfizer in connection with the development of this manuscript. ACV participated at advisory board sponsored by Sanofi. RI, IB and EAM are employees of Pfizer and may hold Pfizer stock or stock options. BP has received payments or honoraria for lectures, presentations, speakers’ bureaus, manuscript writing or educational events from the following commercial sources: Allergan, Amgen, Astellas, Baxter, BMS, Boehringer-Ingelheim, Celgene, Eli Lilly, Janssen Cilag, Jazzpharma, Mylan, Nestlé HS, Novartis, Novo Nordisk, Pfizer, Roche, Sanofi, Servier, Shire, Takeda, Teva; in addition, she received consulting fees from UCB. FS has received payments or honoraria for lectures, presentations, speakers’ bureaus, manuscript writing or educational events from the following commercial sources: Allergan, Amgen, Astellas, Baxter, BMS, Boehringer-Ingelheim, Celgene, Eli Lilly, Janssen Cilag, Jazzpharma, Mylan, Nestle´HS, Novartis, Novo Nordisk, Pfizer, Roche, Sanofi, Servier, Shire, Takeda, Teva; in addition, he received consulting fees from Amgen. All other authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Trend of hospitalizations in Italy
Fig. 2
Fig. 2
Trend of hospitalization rate in Italy
Fig. 3
Fig. 3
Monthly hospitalization rate per 10,000 infants from season 1 to season 4
Fig. 4
Fig. 4
Hospitalization rate per 10,000 infants by geographical area: Group 1 (RSV-coded) and Group 2 (not RSV-coded)
Fig. 5
Fig. 5
Mean hospital stay (days)
Fig. 6
Fig. 6
Rates of critical care cases out of all hospitalizations

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