Epidemiology: Asthma

Published by: Datamonitor

Published: Sep. 22, 2011 - 7 Pages


Table of Contents

OVERVIEW
Catalyst
Summary
EXECUTIVE SUMMARY
Epidemiology of asthma
Asthma in the seven major markets
Datamonitor’s forecast of asthma
DISEASE DEFINITION AND DIAGNOSTIC CRITERIA
Asthma background
Bronchial challenge test and spirometry can be used in asthma diagnosis
Survey is the usual method for collecting data on asthma prevalence
GLOBAL VARIATION AND HISTORICAL TRENDS
Asthma is significantly underdiagnosed and undertreated worldwide
Asthma prevalence varies widely throughout the world
Asthma causes considerable morbidity, diminished quality of life, and mortality worldwide
Morbidity
Mortality
DRIVERS OF ASTHMA EPIDEMIOLOGY
Risk factors
Genetic factors are associated with risk of development and severity of asthma
Environmental risk factors can lead to a significantly increased risk of asthma symptoms
Breastfeeding may provide a protective effect for asthma
Socioeconomic status influences physical health, including asthma
Occupational exposures are the leading risk factor for asthma development in adulthood
Co-morbid conditions
Asthma and COPD can be confused in diagnosis
Allergic rhinitis and asthma are highly co-morbid
Gastroesophageal reflux disease is the second most common co-morbid condition with asthma
EPIDEMIOLOGIC FORECASTING OF ASTHMA
Overview
Subpopulations
Age and gender
Severity
US
Sources used
Methods
Sources not used
Japan
Sources used
Methods
Sources not used
France
Sources used
Methods
Sources not used
Germany
Sources used
Methods
Sources not used
Italy
Sources used
Methods
Sources not used
Spain
Sources used
Methods
Sources not used
UK
Sources used
Methods
Sources not used
EPIDEMIOLOGIC RESULTS
Current prevalent cases of asthma and future trends
Severity
Age and gender
Age-standardized prevalence rates
DISCUSSION
Strengths and limits of Datamonitor’s epidemiologic projections
Conclusions
BIBLIOGRAPHY
Journal papers
Websites
APPENDIX
Module methodology
TABLES
Table: ICD-10 codes associated with asthma
Table: Summary of sources used in analyses
Table: Global Initiative for Asthma guidelines on severity
Table: Total prevalent cases of current asthma in all ages in the seven major markets (000s), 2010-20
Table: Total prevalent cases of current asthma in each of the seven major markets (000s), by severity, 2010
Table: Total prevalent cases of current asthma in each of the seven major markets (000s) in males, by age group, 2010
Table: Total prevalent cases of current asthma in each of the seven major markets (000s) in females, by age group, 2010
Table: Age-standardized prevalence rates of current asthma in the seven major markets, by gender, 2010
FIGURES
Figure: Total prevalent cases of current asthma in all ages in the seven major markets (000s), 2010-20
Figure: Age-standardized prevalence rates of current asthma in the seven major markets, 2010

Abstract

Datamonitor estimates that there were 63.7 million total asthma cases in all ages in the seven major markets (the US, Japan, France, Germany, Italy, Spain, and the UK) in 2010, forecasted to rise to 65.7 million total cases by 2020. Due to stable prevalence rates of asthma, population changes are responsible for the small change in the number of cases during this time.Gain insight into market potential, including a robust 10-year epidemiology forecast of current asthma prevalent cases.

Understand the key epidemiologic risk factors associated with asthma.

Datamonitor expects to see a small increase in the number of prevalent current asthma cases from 2010 to 2020 in the seven major markets (the US, Japan, France, Germany, Italy, Spain, and the UK). The number of asthma cases is expected to increase from approximately 63.7 million cases in 2010 to 65.7 million cases in 2020.The largest increase in the number of current asthma cases is expected in the US. Between 2010 and 2020, the number of total prevalent cases of asthma will increase by 0.7% annually. The largest decrease will be in Japan, decreasing at 0.2% annually.Datamonitor estimates that the largest number of cases of asthma will be in women aged between 20 and 59 and in men aged under 20 due to the fact that these are the age groups in which asthma is the most prevalent.

What are the most robust sources for asthma prevalence data?

How will the patient population change over the next decade in the US, Japan, and five major EU markets (France, Germany, Italy, Spain, and the UK)?

What are the major risk factors for asthma that drive the trends in the disease and how are they changing?

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