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Featured researches published by Ulla K. Griffiths.


Lancet Infectious Diseases | 2010

Global and regional risk of disabling sequelae from bacterial meningitis: a systematic review and meta-analysis.

Karen Edmond; Andrew Clark; Viola S Korczak; Colin Sanderson; Ulla K. Griffiths; Igor Rudan

Few data sources are available to assess the global and regional risk of sequelae from bacterial meningitis. We aimed to estimate the risks of major and minor sequelae caused by bacterial meningitis, estimate the distribution of the different types of sequelae, and compare risk by region and income. We systematically reviewed published papers from 1980 to 2008. Standard global burden of disease categories (cognitive deficit, bilateral hearing loss, motor deficit, seizures, visual impairment, hydrocephalus) were labelled as major sequelae. Less severe, minor sequelae (behavioural problems, learning difficulties, unilateral hearing loss, hypotonia, diplopia), and multiple impairments were also included. 132 papers were selected for inclusion. The median (IQR) risk of at least one major or minor sequela after hospital discharge was 19.9% (12.3-35.3%). The risk of at least one major sequela was 12.8% (7.2-21.1%) and of at least one minor sequela was 8.6% (4.4-15.3%). The median (IQR) risk of at least one major sequela was 24.7% (16.2-35.3%) in pneumococcal meningitis; 9.5% (7.1-15.3%) in Haemophilus influenzae type b (Hib), and 7.2% (4.3-11.2%) in meningococcal meningitis. The most common major sequela was hearing loss (33.9%), and 19.7% had multiple impairments. In the random-effects meta-analysis, all-cause risk of a major sequela was twice as high in the African (pooled risk estimate 25.1% [95% CI 18.9-32.0%]) and southeast Asian regions (21.6% [95% CI 13.1-31.5%]) as in the European region (9.4% [95% CI 7.0-12.3%]; overall I(2)=89.5%, p<0.0001). Risks of long-term disabling sequelae were highest in low-income countries, where the burden of bacterial meningitis is greatest. Most reported sequelae could have been averted by vaccination with Hib, pneumococcal, and meningococcal vaccines.


The Lancet | 2012

Effect of increasing active travel in urban England and Wales on costs to the National Health Service

James Jarrett; James Woodcock; Ulla K. Griffiths; Zaid Chalabi; Phil Edwards; Ian Roberts; Andy Haines

Increased walking and cycling in urban areas and reduced use of private cars could have positive effects on many health outcomes. We estimated the potential effect of increased walking and cycling in urban England and Wales on costs to the National Health Service (NHS) for seven diseases--namely, type 2 diabetes, dementia, cerebrovascular disease, breast cancer, colorectal cancer, depression, and ischaemic heart disease--that are associated with physical inactivity. Within 20 years, reductions in the prevalences of type 2 diabetes, dementia, ischaemic heart disease, cerebrovascular disease, and cancer because of increased physical activity would lead to savings of roughly UK£17 billion (in 2010 prices) for the NHS, after adjustment for an increased risk of road traffic injuries. Further costs would be averted after 20 years. Sensitivity analyses show that results are invariably positive but sensitive to assumptions about time lag between the increase in active travel and changes in health outcomes. Increasing the amount of walking and cycling in urban settings could reduce costs to the NHS, permitting decreased government expenditure on health or releasing resources to fund additional health care.


Cost Effectiveness and Resource Allocation | 2009

The economic burden of inpatient paediatric care in Kenya: household and provider costs for treatment of pneumonia, malaria and meningitis

Philip Ayieko; Angela Oloo Akumu; Ulla K. Griffiths; Mike English

BackgroundKnowledge of treatment cost is essential in assessing cost effectiveness in healthcare. Evidence of the potential impact of implementing available interventions against childhood illnesses in developing countries challenges us to define the costs of treating these diseases. The purpose of this study is to describe the total costs associated with treatment of pneumonia, malaria and meningitis in children less than five years in seven Kenyan hospitals.MethodsPatient resource use data were obtained from largely prospective evaluation of medical records and household expenditure during illness was collected from interviews with caretakers. The estimates for costs per bed day were based on published data. A sensitivity analysis was conducted using WHO-CHOICE values for costs per bed day.ResultsTreatment costs for 572 children (pneumonia = 205, malaria = 211, meningitis = 102 and mixed diagnoses = 54) and household expenditure for 390 households were analysed. From the provider perspective the mean cost per admission at the national hospital was US


Malaria Journal | 2009

Cost-effectiveness analysis of rapid diagnostic test, microscopy and syndromic approach in the diagnosis of malaria in Nigeria: implications for scaling-up deployment of ACT.

Benjamin Uzochukwu; Eric Obikeze; Obinna Onwujekwe; Chima Onoka; Ulla K. Griffiths

95.58 for malaria, US


Proceedings of the National Academy of Sciences of the United States of America | 2014

Impact and cost-effectiveness of new tuberculosis vaccines in low- and middle-income countries

Gwenan M. Knight; Ulla K. Griffiths; Tom Sumner; Yoko V. Laurence; Adrian Gheorghe; Anna Vassall; Philippe Glaziou; Richard G. White

177.14 for pneumonia and US


PLOS ONE | 2012

Long Term Sequelae from Childhood Pneumonia; Systematic Review and Meta-Analysis

Karen Edmond; Susana Scott; Viola S Korczak; Catherine Ward; Colin Sanderson; Evropi Theodoratou; Andrew Clark; Ulla K. Griffiths; Igor Rudan; Harry Campbell

284.64 for meningitis. In the public regional or district hospitals the mean cost per child treated ranged from US


Bulletin of The World Health Organization | 2007

Economic evaluation of delivering Haemophilus influenzae type b vaccine in routine immunization services in Kenya

Angela Oloo Akumu; Mike English; J. Anthony G. Scott; Ulla K. Griffiths

47.19 to US


Vaccine | 2009

Incremental system costs of introducing combined DTwP-hepatitis B-Hib vaccine into national immunization services in Ethiopia.

Ulla K. Griffiths; Viola S Korczak; Dereje Ayalew; Asnakew Yigzaw

81.84 for malaria and US


Vaccine | 2010

Supporting new vaccine introduction decisions: Lessons learned from the Hib Initiative experience

Rana Hajjeh; Lois Privor-Dumm; Karen Edmond; Rosalyn O'Loughlin; S. Shetty; Ulla K. Griffiths; Allyson P. Bear; Adam L. Cohen; Aruna Chandran; Anne Schuchat; Edward K. Mulholland; Mathu Santosham

54.06 to US


Vaccine | 2010

Global use of Haemophilus influenzae type b conjugate vaccine

Linda R. Ojo; Rosalyn O'Loughlin; Adam L. Cohen; Jennifer D. Loo; Karen Edmond; Sharmila S. Shetty; Allyson P. Bear; Lois Privor-Dumm; Ulla K. Griffiths; Rana Hajjeh

99.26 for pneumonia. The corresponding treatment costs in the mission hospitals were between US

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Rana Hajjeh

Centers for Disease Control and Prevention

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Mark Jit

University of London

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