Clinical characteristics and cost of chickenpox hospitalization in Thai children
Insights
Severe chickenpox (Varicella-Zoster Virus) in hospitalized Thai children often leads to complications and significant healthcare costs. This study highlights the underappreciated burden of severe varicella in children, emphasizing the need for better prevention strategies.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Public Health
Background:
- Primary Varicella-Zoster Virus (VZV) infection, or chickenpox, can cause severe illness in immunocompromised children and infants.
- Limited data exists on the clinical features, outcomes, and financial impact of severe varicella requiring hospitalization in Thai children.
Purpose of the Study:
- To determine the clinical characteristics of hospitalized chickenpox cases in children.
- To assess disease severity, complication rates, case fatality, and healthcare resource utilization, including length of stay and direct medical costs.
Main Methods:
- A retrospective descriptive study analyzed 101 children (1 month to 18 years) hospitalized with chickenpox from 2007-2011 in Bangkok, Thailand.
- Data on clinical manifestations, complications, outcomes, and hospital charges were collected from medical records and financial databases.
Main Results:
- Of 101 cases, 34.7% had predisposing conditions for severe varicella. 73.3% developed complications, most commonly skin/soft tissue infections (50.5%), pneumonia (12.7%), and neurological issues (6.4%).
- No fatalities were recorded. Median hospitalization was 6 days, with median charges of US$330.2. Children with predisposing conditions had significantly longer hospital stays and higher costs.
Conclusions:
- The high rate of varicella complications and associated financial burden in hospitalized children may be underestimated.
- This study provides crucial insights into the burden of hospitalized varicella, affecting both healthy children and those with underlying immunosuppression.
Background:
Although primary Varicella-Zoster-Virus (VZV) infection generally causes uncomplicated illness confined to skin and mucous membrane among healthy children, it infrequently causes life-threatening infection especially among immuno-suppressed hosts or young infants. Limited information is available regarding the clinical features, outcomes, and the financial burden incurred by severe primary varicella infection in Thai children who required hospitalization.
Objective:
To determine clinical characteristics particularly the disease severity, prevalence of complication, case fatality rate, and use of healthcare resources in terms of length of stay as well as direct medical cost of varicella-associated hospitalization in children.
Material And Method:
A retrospective descriptive study was conducted among children aged one month to 18 years who were hospitalized with chickenpox between 2007 and 2011 at the Queen Sirikit National Institute of Child Health, Bangkok, Thailand. Information on clinical manifestations, complications, and outcomes were obtained by medical record abstraction, and data on hospital charges were obtained from the hospital financial database.
Results:
A total of 101 cases of chickenpox were identified, with a median (interquartile range IQR) age of 4 (0.8, 7.25) years. Underlying predisposing conditions for severe varicella infection were identified in 35 cases (34.7%). Seventy four of 101 (73.3%) patients developed complications, with skin and soft tissue infections being the most common (50.5%), followed by pneumonia (12.7%) and neurological complications (6.4%). There were no fatal cases. Median (IQR) duration of hospitalization and hospital charges were 6 (3, 9) days and US$ 330.2 ($139.3, $1,013.5), respectively. Children with predisposing conditions for severe varicella were significantly older, incurring 6-fold higher hospital charges and 2-fold longer hospitalization compared to their counterparts.
Conclusion:
The high rate of complicated varicella and financial burden reported in this study suggested that the severity of varicella complications in children might have been previously underestimated. This study provides relevant information regarding the burden of hospitalized varicella infection among both otherwise healthy children as well as children with predisposing immuno-suppression.
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