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Combining health and social protection measures to reach the ultra ...

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InnovationBeing <strong>health</strong>y:<strong>the</strong> role of researchArticle by Andrew Y KituaLiving a <strong>health</strong>y life is <strong>the</strong> ultimate common desire ofhuman beings <strong>and</strong> is what has driven individuals <strong>and</strong>communities <strong>to</strong> search for medicines <strong>and</strong> o<strong>the</strong>r <strong>health</strong>remedies. Improvements in <strong>health</strong> research methodologieshave helped us <strong>to</strong> test beliefs, myths <strong>and</strong> <strong>the</strong>ories for <strong>the</strong>irvalidity <strong>and</strong> reliability, which has led <strong>to</strong> <strong>the</strong> generation of newknowledge <strong>and</strong> in turn <strong>to</strong> new or improved <strong>to</strong>ols. As a resul<strong>to</strong>f better research <strong>and</strong> innovation, we have accumulated vastknowledge about <strong>the</strong> determinants of disease <strong>and</strong> ill <strong>health</strong>,prevention <strong>measures</strong> <strong>and</strong> cures of diseases. Our medicines<strong>and</strong> <strong>health</strong> interventions are unquestionably better <strong>and</strong> saferthan <strong>the</strong>y were 50 years ago. It is indeed scientific researchthat has continuously transformed or revolutionized <strong>the</strong> waywe live <strong>and</strong> has been a key determinant of <strong>the</strong> rate ofmodernization <strong>and</strong> human development.Access <strong>to</strong> <strong>and</strong> utilization of <strong>the</strong> new knowledge <strong>and</strong> <strong>the</strong>resultant new or improved <strong>to</strong>ols has not been equal among<strong>the</strong> countries that form our global community. Becausetechnology has greatly influenced economic power, countrieswith greater technological advancement <strong>and</strong> greater researchcapacity have conspicuously better <strong>health</strong> status thancountries in transition <strong>to</strong>wards acquiring technology <strong>and</strong> withweaker research capacities. There is vast heterogeneity of<strong>health</strong> status <strong>to</strong>day between continents, countries <strong>and</strong> evenwithin countries. Whe<strong>the</strong>r measured by life expectancy atbirth, infant <strong>and</strong> child mortality, maternal mortality,malnutrition, or disease patterns, <strong>the</strong> <strong>health</strong> status of acountry’s population reflects <strong>the</strong> status of its technological<strong>and</strong> economical advancements, which in turn reflect itscapacity <strong>to</strong> effectively access <strong>and</strong> use new knowledge <strong>and</strong><strong>to</strong>ols for human development.Risks for ill <strong>health</strong>Health research has greatly advanced our knowledge of riskfac<strong>to</strong>rs for diseases <strong>and</strong> ill <strong>health</strong>. Health risk as a measure of<strong>the</strong> probability that an adverse event for <strong>health</strong> will occurfollowing exposure <strong>to</strong> a certain fac<strong>to</strong>r has been used <strong>to</strong>measure <strong>the</strong> <strong>health</strong> status of individuals <strong>and</strong> communities. Itis well known that although <strong>the</strong>re are no individuals orcommunities devoid of <strong>health</strong> risks, <strong>and</strong> risk fac<strong>to</strong>rs arewidely distributed globally, <strong>the</strong>re are global differentials in <strong>the</strong>level or position of individuals <strong>and</strong> populations on <strong>the</strong> riskscale for a particular fac<strong>to</strong>r 1,2,3 , along <strong>the</strong> divide of developing<strong>and</strong> developed countries.The pattern of morbidity <strong>and</strong> mortality differs remarkablyamong countries at different levels of technological <strong>and</strong>economic status, such that low-income countries, or leastdeveloped countries, bear higher mortality from preventableconditions, while high-income countries bear <strong>the</strong> burden ofhigher consumption <strong>and</strong> lifestyle risks 2 .Risks of dying at different age categories from birth, <strong>and</strong> <strong>the</strong>causes of such risks, differ greatly among low-, middle- <strong>and</strong>high-income countries. In low-income countries, <strong>the</strong> majorityof deaths occur at very young ages, before <strong>reach</strong>ing age five.Once individuals have avoided death at this level, <strong>the</strong>y arealmost assured <strong>to</strong> survive <strong>the</strong> adolescent period between five<strong>and</strong> twenty years, where <strong>the</strong> risk of dying is lowest. With <strong>the</strong>current levels of spread of HIV/AIDS, <strong>the</strong> previously most fit<strong>and</strong> productive age between 15 <strong>and</strong> 45 years has nowbecome highly risky. Mortality in this age group has increasedremarkably, bringing down previous gains in life expectancy.In contrast, <strong>the</strong> majority of deaths occur after <strong>the</strong> age of 60years in high-income countries 3 .In low- <strong>and</strong> middle-income countries, <strong>the</strong> main risk fac<strong>to</strong>rsfor death are: underweight, resulting mainly from malnutrition<strong>and</strong> infections; unsafe sex; unsafe water; poor sanitation <strong>and</strong>hygiene; <strong>and</strong> smoke from solid fuel 3 . Most of <strong>the</strong>se areavoidable due <strong>to</strong> availability of knowledge <strong>and</strong> effective <strong>to</strong>ols<strong>to</strong> prevent <strong>the</strong>m. Recent studies have shown that 87% ofmortality occurring in children below <strong>the</strong> age of five in low<strong>and</strong>middle-income countries is avoidable 4 . In <strong>the</strong> samecategory of countries, 63% of males <strong>and</strong> 84% of femalesaged 5–29 years die of avoidable fac<strong>to</strong>rs. The higherproportion of deaths among females is due <strong>to</strong> avoidablepregnancy-related <strong>and</strong> child birth-related causes. Avoidabledeaths due <strong>to</strong> communicable diseases account for 90% of allmortality in all sex <strong>and</strong> age classes, excluding middle-agedmen in whom <strong>the</strong>ir contribution is 80%.In high-income countries, mortality is mostly at old age.The relatively few deaths that occur in younger life areconcentrated in <strong>the</strong> neonatal period <strong>and</strong> are mainly due <strong>to</strong>congenital malformations. Mortality risk fac<strong>to</strong>rs are mainly<strong>to</strong>bacco use, high blood pressure, obesity <strong>and</strong> alcoholconsumption. Road traffic accidents have a significantcontribution, <strong>and</strong> this trend is also increasing in middleincomecountries 1 .The picture is reflective of <strong>the</strong> power of knowledgeownership <strong>and</strong> capacity <strong>to</strong> both generate <strong>and</strong> utilize available100 ✜ Global Forum Update on Research for Health Volume 4

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