EDITORIAL
SaoPauloMedJ.2005;123(2):47-8.
PauloAndradeLotufo
Nowadays,thereisanotabledilemmaforallsocieties:the increasingpopulationofelderlypeopleandsociety’sdifficulty inprovidingthenecessarypensionresources.Thecausesofsuch difficultiesmaybemerelydemographicoreconomic,suchas reducedeconomicactivity,moreunemploymentandinformal work,withaconsequentfallinpensionfundrevenue.Inall societiesinwhichademocraticsocialcontracthasbeenestab-lished,asisthecaseofBrazil,thisproblemmay,toagreateror lesserextent,bedemographicallyoreconomicallydetermined. In the Brazilian case, it is very likely that the demographic question has less importance than does the socioeconomic question,sincethegreaterproportionofelderlypeoplestems fromthereducedbirthratethathasresultedfromtheabrupt fallinfertilityrates,ratherthanfromincreasedlongevitydue tomedicalcareimprovement.Inconsequence,theburdenof non-transmissiblechronicdiseasesisnotanewissue,consider-ingtheriskofeitherdiseaseordeath,butonlyamanifestation ofahigherproportionofelderlypeople.1
The term “non-transmissible chronic diseases” deserves comment,eventhoughitisapracticalterm.Itdesignatesa set of different diseases, from the etiological point of view, as“non-infectious”and,fromthetemporalpointofview,as “non-acute”.Nevertheless,therearechronicdiseasesforwhich thebasiccauseisinfectioustransmittableagents,suchaspeptic ulcer(Helicobacterpylori)andcarcinomaoftheuterineneck (papillomavirus).Achroniccourse,however,canbeobserved for contagious infectious diseases such as Hansen’s disease, malaria and paracoccidioidomycosis.The natural history of acutemyocardialinfarctandsubarachnoidhemorrhagecanbe measuredinminutes.Forthepurposesofthisopeningarticle, thebestapproachtopublichealthmanagementwouldbeto abandonthewiderangeofchronicdiseasestobeanalyzedin detailintheirmaingroups,firstlybythechaptersoftheIn-ternationalClassificationofDiseaseascardiovasculardiseases andcancersandthen,secondly,bydetailingthecerebrovascular andcoronarydiseasesandthespecifictypesofcancer.Inthe presenttext,wepresenttheBrazilianpanoramaofcardiovas-culardiseases,inordertocontesttheideaofepidemicsandthe emergenceofchronicdiseasesinthewaythatissuggestedby textsthat,ingivinggreatprominencetotheAsianexample, makeimproperextrapolationsoftheBrazilianreality.2
As we will show in the following, using the example of cardiovascular diseases, the epidemic of cardiovascular diseases,ormoreappropriately,ofcerebrovascularandcoro-narydiseases,hasalreadyoccurredandmayevencomeback, consideringtheincreasesinobesityanddiabetes.3However,
therealreasonforthishasneverbeenthepopularlyascribed reasonofadoptionoftheWesternlifestyle,ormoreexactly, theadoptionoftheAmericandietarypatternsofthemajor fast-foodchainssuchasMcDonald’s.Thisdesignation,aswell
asdisplayingalackofknowledgeoftheplanet’sgeography, hasnoempiricalbasis.Itcannot,forexample,beshownthat “McDonaldization”hasbeenadoptedinthedailylivesofthe Brazilianpopulation.Onthecontrary,thereisevidencethat thedietarymodificationsinthecountryarefollowingtheir owncourse,whichmayevenexplainpartoftheobesity,albeit farfromtheAmericandietarypatterns.4
The antiquity of the “cardiac disease” question in the country is shown in medical compendiums from the nine-teenthcentury,suchas“LessonsinInternalMedicine”,which describespatientsinRiodeJaneirowithanginaandmyocardial infarct,atatimewhennotonlyrheumaticcardiacdiseasebut alsosyphiliswashighlyprevalent.5Theimportanceofchronic
diseasesintheprofileofmortalityinBrazilwasestablishedin the1960s(i.e.45yearsago),whenthesetofdiseasesofthecir-culatorysystemweresuperimposedontheinfectious-parasitic diseasesinthecountry’sstatecapitals.6However,thechange
topredominanceofchronicdiseasesoverinfectious-parasitic diseasesinthecityofSãoPaulotookplaceimmediatelyfollow-ingtheWorldWarII(circa1945-50).In1900,amongtheten maincausesofdeathsinSãoPaulo,therewere“heartdiseases” (thirdplace,6.5%)and“cerebralcongestionandhemorrhage” (tenth,2.1%).In1930,amongthetenmostfrequentcauses, therewere“heartdiseases”(fourth,4.8%),“otheraffectionsof thecirculatorysystem”(sixth,4.3%),“cancer”(seventh,4.1%) and“cerebralcongestionandhemorrhages”(ninth,2.5%).On theotherhand,in1960,“heartdiseases”werestatedasthemain cause(19.0%),followedinsecondplaceby“cancer”(12.1%) andthenby“vascularlesionsofthecentralnervoussystem” (7.7%).Thetenthcause,with2.1%wasdiabetes.7
AseriesofstudiesbeguninSãoPauloin19378-13(Table
1)describedtheprofileofcardiopathyinthefirsthalfofthat century.AlthoughthosestudiesonlyrecognizedChagas’dis-easeinthe1940s,theproportionofcaseshospitalizedwitha diagnosisofhypertensionandatherosclerosiswasbigenoughto showtheimportanceandrelevanceoftheseriskfactorsduring thatperiod.In1948,ascreeningstudyfortuberculosiswith workplaceradiographyexaminations(“abreugrafia”)on39,488 workersinSãoPaulofoundthat1.2%werecasesofdilatated myocardiopathy.14
Studies of mortality have shown that the evolution of cardiovasculardiseasesinthecityofSãoPaulointhe1940s to1960sshowedadeclineinrheumaticheartdiseaseandthe emergenceofischemicandcerebrovasculardisease.In1940, rheumatic disease and coronary disease presented similar mortalityrates.Thirtyyearslater,deathsduetorheumatic diseasecorrespondedtojust10%ofthosecausedbycoronary disease.Thepredominanceofdeathsduetocoronarydiseases, inrelationtocerebrovasculardiseases,wasestablishedinthe cityofSãoPauloattheendofthe1940s.15
WhyBrazildoesnothaveanepidemic
ofchronicdiseases:someanswers
48
AcomparativestudybythePan-American Health Organization on mortality among adults,carriedoutinSãoPauloandRibeirão Preto(andanothertencities)atthestartof the1960salreadyshowedthatthemortality ratesduetodiseasesofthecirculatorysystem amongmeninthesetwocitiesintheStateof SãoPaulowereclosetothevaluesobservedin theUnitedKingdomandtheUnitedStates. However,Brazilianwomenhadratesthatwere higherthanforBritishandAmericanwomen. Forbothsexes,themortalityassociatedwith hypertensionpresentedhigherratesinthese twocitiesoftheStateofSãoPaulo.16
Inthemiddleofthe1980s,afallinthe mortalityduetocerebrovascularandcoronary diseasewasdetectedinthecityofSãoPaulo17-19
andintheStateofSãoPaulo.20,21Thistendency
subsequentlyspreadtoalloftheBrazilianmet-ropolitanregions.Insummary,themortality due to coronary and cerebrovascular disease maystillbehighincomparisonwithratesin othercountries,22
butthesediseasespresentde-cliningorevenstablerates,3
andneverincreas-inginthewaythathasbeenreportedforregions inwhichtherehasbeenanimprovementin thequalityofthecertification(Northeastern region)orradicalalterationoftheoccupation ofthespace(Center-Westregion).23
Itisimportanttoemphasizethatthedeclin-ingtrendinmortalityprecededtheintroduction ofmoreefficacioustreatmentsforreducingthe case-fatality of cerebrovascular and coronary disease.Thehypothesisofexpandingmorbid-itythatpostulatesthatthedeclineinmortality isduetothereductioninthecase-fatalityrates ofdiseasesisextremelyweak.Thereductionin themortalityduetocoronarydiseasebeganin
1. Carvalho JAM, Garcia RA. O envelhecimento da população brasileira:umenfoquedemográfico.[Theagingprocessinthe Brazilian population: a demographic approach]. Cad Saúde Pública.2003;19(3):725-33.
2. Yusuf S, Reddy S, Ounpuu S, Anand S. Global burden of cardiovasculardiseases:partI:generalconsiderations,theepi-demiologictransition,riskfactors,andimpactofurbanization. Circulation.2001;104(22):2746-53.
3. LotufoPA.IncreasingobesityinBrazil:predictinganewpeakof cardiovascularmortality.SaoPauloMedJ.2000;118(6):161-2. 4. MondiniL,MonteiroCA.Mudançasnopadrãodealimentaçãoda
populaçãourbanabrasileira(1962-1988).[Changingdietpatterns inBrazil(1962-1988)].RevSaúdePública.1994;28(6):433-9. 5. Homem JVT. Lições de Clínica Médica feitas na Faculdade
deMedicinadoRiodeJaneirode1867-1881.RiodeJaneiro: LopesdoCouto;1882.
6. BayerGF,GoesS.Mortalidadenascapitaisbrasileiras1930-1980.RADIS-dados.1984;2.
7. dosMascarenhasRS,WilsonD.Diabetesmelitoesaúdepública. [Diabetesmellitusandpublichealth].ArqHigSaúdePública. 1963;28:31-41.
8. Rubião-Meira D, Ramos J, Marcondes JR. Incidência dos diferentestiposdeafecçõescardiovascularesedeseusfatores etiológicos.SãoPauloMédico.1937;2:103-10.
9. Chiaverini R. Contribuição ao estudo da etiologia das car-diopatiasemSãoPaulo[thesis].SãoPaulo(SP):Faculdadede MedicinadaUniversidadedeSãoPaulo;1940.
10. Chiaverini R. Considerações clínicas sobre 429 cardíacos hospitalizados.RevistaPauistadeMedicina.1948;32:30-3. 11.
RamosJ,RattoO,BorgesS,LindenbergS.Freqüênciaetioló-gicadascardiopatiasemSãoPaulo(Brasil).ArqBrasCardiol. 1949;2:181-92.
12. ChiaveriniR.Tiposetiológicosdecardiopatiasemumnúcleo ferroviáriodeSãoPaulo.[Etiologicaltypesofheartdiseaseinrailway workersinSãoPaulo].ArqBrasCardiol.1951;4(4):403-12. 13. TranchesiB,Carvalheiro-DiasJ,NussenzveigI,TisiO,Tranchesi
J,LionMF.AetiologiadascardiopatiasemSãoPaulo,Brasil. [Etiology of heart diseases in São Paulo, Brazil]. Arq Bras Cardiol.1951;4(1):31-44.
14. GusmãoHH.Contribuiçãoparaoestudodoproblemadatubercu-losenasindústriasdeSãoPaulo[thesis].SãoPaulo(SP):Faculdade deHigieneeSaúdePúblicadaUniversidadedeSãoPaulo;1948. 15. LaurentiR,FonsecaLA.Amortalidadepordoençacardiovas-cularnoMunicípiodeSãoPauloemumperíodode30anos (1940-1969). [Mortality from cardiovascular diseases on the provinceofSaoPauloinaperiodof30years(1940-1969)]. ArqBrasCardiol.1976;29(2):85-8.
16. PufferRR,GriffithGW.Característicasdelamortalidadurbana: informe de la Investigación Interamericana de Mortalidad. Washington:OrganizaciónPanamericanadelaSalud;1968. 17. LolioCA,LaurentiR.Tendênciadamortalidadepordoenças
cerebrovascularesemadultosmaioresde20anosdeidadeno MunicípiodeSãoPaulo(Brasil),1950a1981.[Tendenciesof mortalityduetocerebrovasculardiseasesinadultsover20inthe municipalityofSãoPaulo(Brazil),1950to1981].RevSaúde Pública.1986;20(5):343-6.
18. LolioCA,LaurentiR.Mortalidadepordoençaisquêmicadocoração nomunicípiodeSãoPaulo:evoluçãode1950a1981emudanças recentesnatendência.[Mortalityduetoischemicheartdiseaseinthe municipalityofSãoPaulo:evolutionfrom1950to1981andrecent changesinthetendency].ArqBrasCardiol.1986;46(3):153-6. 19. Lolio CA, Souza JM, Laurenti R. Decline in cardiovascular
diseasemortalityinthecityofSãoPaulo,Brazil,1970to1983. RevSaúdePública.1986;20(6):454-64.
20. LotufoPA,LolioCA.Tendênciadamortalidadepordoençaisquê-micadocoraçãonoEstadodeSãoPaulo:1970a1989.[Mortality trendsinischemicheartdiseaseinSãoPauloState:1970-1989].Arq BrasCardiol.1993;61(3):149-53.
21. Lotufo PA, Lolio CA.Tendência da mortalidade por doença cerebrovascularnoEstadodeSãoPaulo:1970a1989.[Trendsof mortalitybycerebrovasculardiseaseintheStateofSãoPaulo:1970 to1989].ArqNeuropsiquiatr.1993;51(4):441-6.
22. Lotufo PA. Mortalidade precoce por doenças do coração no Brasil. Comparação com outros países. [Premature mortality from heart diseases in Brazil. An international comparison]. ArqBrasCardiol.1998;70(5):321-5.
23. Souza MFM,Timerman A, Serrano Júnior CV, Santos RD, MansurAP.Trendsintheriskofmortalityduetocardiovascular diseasesinfiveBraziliangeographicregionsfrom1979to1996. ArqBrasCardiol.2001;77(6):562-75.
24. HigginsM,LuepkerR,editors.Trendsincoronaryheartdis-easemortality:theinfluenceofmedicalcare.Oxford:Oxford UniversityPress;1988.
25. Food and Agriculture Organization of the United Nations. NutritionCountryProfiles.Brazil.Rome:FAO,2000.Available fromURL:ftp://ftp.fao.org/es/esn/nutrition/ncp/BRAmap.pdf. Accessedin2004(Mar2).
Note: Thisarticleformspartoftheauthor’smaster’sdegreedis-sertation(1993,FaculdadedeSaúdePública,Universidade deSãoPaulo)andwasoriginallypublishedinPortuguese in the Journal Ciência & Saúde Coletiva: Lotufo, Paulo Andrade.Porquenãovivemosumaepidemiadedoenças crônicas:oexemplodasdoençascardiovasculares.Ciênc. saúdecoletiva,Oct./Dec.2004,vol.9,no.4,p.844-847. ISSN1413-8123.
REFERENCES
SaoPauloMedJ.2005;123(2):47-8.
Table1.Frequencyofheartdiseasesincaseseriesfromstudiesperformed andpublishedinSãoPaulobetweenthe1930sand1960s
Author,Year Hypertension Atherosclerosis Rheumatic Chagas Syphilis
Rubião-Meira81937 10.5 19.0 12.0 – 21.0
Chiaverini91940 31.1 19.3 21.1 – 19.7
Ramos111949 67.6 5.5 18.5 – 2.6
Chiaverini101948 31.0 22.0 16.0 – 13.0
Chiaverini121951 69.3 8.7 15.9 – 1.6
Tranchesi131951 23.4 20.7 23.7 10.9 7.4
theUnitedStatesattheendofthe1960s,when thetherapeuticarsenalwasalmostzero,incom-parisonwithwhatthereistoday.24
In conclusion, there is no epidemic of chronic diseases or recent adoption of “Western habits” in Brazil.25The increase
in the proportion of the elderly population istheresultofthefallinfertilityrates1and
theimpactofmedicalactionsforincreasing longevityarestillimperceptible,giventhatthe fallinmortalityduetocardiovasculardiseases preceded the adoption of new therapeutic methods.Thedifferencebetweentodayand 50yearsagoistheincreaseinthenotionof citizenship and extension of benefits to all, especially those who are most affected by diseases.Inthissense,therewillbeagreater medicalcaredemandresultingfromthepres-sureforscreeningandpreventionmeasures, coming from those who previously were excludedfromhealthcareservices.