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Published on: November 20, 2015
The incidence and implications of cerebral palsy following potentially avoidable obstetric complications: a
1Liverpool Health Economics, Management School, University of Liverpool, Liverpool, UK; Lifecode®, the Old Vicarage, Lindley, Huddersfield, UK.
Insights
Adverse obstetric events causing cerebral palsy significantly reduce quality of life and survival. Prevention is possible, with outcomes varying by Gross Motor Function Classification System (GMFCS) severity.
Area of Science:
- Neurology
- Public Health
- Medical Simulation
Background:
- Cerebral palsy (CP) is a significant disability.
- Adverse obstetric events can lead to CP.
- Quantifying the impact of CP on life expectancy and quality of life is crucial for public health planning.
Purpose of the Study:
- To determine the extent of cerebral palsy (CP) attributable to adverse obstetric events.
- To estimate the lifetime mortality and morbidity expectations for individuals with CP compared to the general UK population.
- To estimate the quality-adjusted life years (QALYs) lost due to asphyxia-related CP.
Main Methods:
- A simulation model was developed using published data on CP incidence and aetiology.
- A hypothetical cohort of UK live births in 2014 was simulated.
- Survival and quality of life (QoL) were compared between individuals with CP and age-matched UK general population representatives.
Main Results:
- An estimated 207 cases of asphyxia-related CP were projected for UK births in 2014.
- Approximately 15.2 QALYs were lost per case of asphyxia-related CP.
- The total QALYs lost were projected at 3142, valued at £62.9 million for the UK National Health Service.
Conclusions:
- Intrapartum asphyxiation leading to CP significantly reduces QoL and survival.
- CP with Gross Motor Function Classification System (GMFCS) levels 1 and 2 show near-normal lifetime QALYs.
- GMFCS levels 3, 4, and 5 experience progressively reduced QALYs, with GMFCS 5 having negative QALYs.
Objective:
To determine the extent of cerebral palsy attributable to adverse obstetric events, and estimate the lifetime mortality and morbidity expectations of these individuals relative to age-matched members of the UK general population.
Design:
Simulation model.
Setting Uk Population:
All projected live births during 2014.
Methods:
Using published data regarding the incidence and aetiology of cerebral palsy, we simulated the outcomes of a hypothetical cohort of UK live births. Survival and quality of life (QoL) for those with cerebral palsy were compared with age-matched individuals representative of the UK general population, in order to estimate the number of quality-adjusted life years (QALYs) lost following asphyxia-related cerebral palsy.
Main Outcome Measures:
Incidence of asphyxia-related cerebral palsy, QALYS, QoL, and survival.
Results:
A total of 207 (95% CI 169-245) cases of asphyxia-related cerebral palsy were projected amongst UK children born during the year 2014, with approximately 15.2 QALYs lost per case. If these results held true in a real birth cohort, 3142 (95% CI 2321-3963) QALYs would be lost as a consequence of asphyxia-related cerebral palsy, a loss valued by the UK National Health Service at £62.9 m (95% CI £46.4-79.3 m).
Conclusions:
Cerebral palsy following intrapartum asphyxiation leads to significant reductions in QoL and survival; however, this may often be prevented. For those with GMFCS 1 and GMFCS 2 cerebral palsy (Gross Motor Function Classification System), lifetime QALYs accrued largely resemble those experienced by the UK general population, whereas for GMFCS 3 and GMFCS 4 QALYs are reduced considerably, and are negative in the case of GMFCS 5.
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