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The quality-adjusted life-years loss due to serogroup B invasive meningococcal disease in Spain
Andrea García1, Laura A Vallejo-Aparicio1, Najida Begum2
1GSK, Tres Cantos, Spain.
Introduction:
Despite its impact on a patient's life, there is a paucity of evidence on the humanistic burden of invasive meningococcal disease (IMD) due to serogroup B (MenB) in Spain. This study estimates the total quality-adjusted life-year (QALY) loss due to MenB-IMD in Spain from a societal perspective.
Materials And Methods:
A previously published incidence-based Excel tool adapted to the Spanish setting was used to estimate total QALY losses over a patient's lifetime horizon, including direct and indirect impact on patients and families/caregivers, respectively. A 3% discount rate was applied, and a deterministic and probabilistic sensitivity analyses were performed to evaluate uncertainty and assumptions used for the base case.
Results:
The total discounted QALY loss for a hypothetical cohort of 142 cases of MenB-IMD was 572.44 QALYs (4.03/case). Direct loss (attributable to patients) represented 81.2% of the total loss (464.54 QALYs; 3.27/case) and indirect loss (caused to relatives/ caregivers) represented 18.8% (108.90 QALYs; 0.76/case). Sequelae had the highest impact on QALY loss for both patients (60.5%) and relatives/caregivers (84.6%). Children <5 years of age (YOA) accounted for 47.8% of the total QALY loss. Mortality accounted for 17.62 QALY loss per death. The discount rate parameter showed the highest influence on results and the probabilistic sensitivity analysis revealed a 98.0% probability of total QALY loss achieving the point estimate.
Conclusions:
The results emphasize that the humanistic burden associated with a MenB case is mainly driven by its sequelae, impacting the patients and their relatives/caregivers.
Insights
The humanistic burden of serogroup B invasive meningococcal disease (MenB-IMD) in Spain is substantial, primarily driven by long-term sequelae in patients and their families. This study quantifies the significant quality-adjusted life-year (QALY) loss associated with MenB-IMD.
Area of Science:
- Public Health
- Epidemiology
- Health Economics
Background:
- Limited evidence exists on the humanistic burden of serogroup B invasive meningococcal disease (MenB-IMD) in Spain.
- This study addresses the paucity of data by estimating the societal impact of MenB-IMD.
Purpose of the Study:
- To estimate the total quality-adjusted life-year (QALY) loss due to MenB-IMD in Spain from a societal perspective.
- To quantify the direct and indirect humanistic burden of MenB-IMD on patients and their families/caregivers.
Main Methods:
- An incidence-based Excel tool adapted for the Spanish setting was utilized.
- QALY losses were estimated over a lifetime horizon, incorporating direct and indirect impacts.
- Discount rates and sensitivity analyses were applied to assess uncertainty.
Main Results:
- A hypothetical cohort of 142 MenB-IMD cases resulted in a total discounted QALY loss of 572.44 (4.03/case).
- Direct loss (patients) accounted for 81.2% and indirect loss (families/caregivers) for 18.8% of the total.
- Sequelae significantly drove QALY loss (60.5% for patients, 84.6% for caregivers); children under 5 years old represented 47.8% of the total loss.
Conclusions:
- The humanistic burden of MenB-IMD is substantial, largely influenced by long-term sequelae.
- Both patients and their relatives/caregivers experience significant quality-of-life impacts.
- Findings highlight the importance of addressing the sequelae of MenB-IMD to mitigate societal burden.
Related Concept Videos
Infectious Diseases and Their Occurrence
Bacterial Meningitis
Viral Meningitis
Cryptococcal Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

