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Ledesma JR, Ma J, Zhang M, Basting AVL, Chu HT, Vongpradith A, Novotney A, LeGrand KE, Xu YY, Dai X, Nicholson SI, Stafford LK, Carter A, Ross JM, Abbastabar H, Abdoun M, Abdulah DM, Aboagye RG, Abolhassani H, Abrha WA, Abubaker Ali H, Abu-Gharbieh E, Aburuz S, Addo IY, Adepoju AV, Adhikari K, Adnani QES, Adra S, Afework A, Aghamiri S, Agyemang-Duah W, Ahinkorah BO, Ahmad D, Ahmad S, Ahmadzade AM, Ahmed H, Ahmed M, Ahmed A, Akinosoglou K, AL-Ahdal TMA, Alam N, Albashtawy M, AlBataineh MT, Al-Gheethi AAS, Ali A, Ali EA, Ali L, Ali Z, Ali SSS, Allel K, Altaf A, Al-Tawfiq JA, Alvis-Guzman N, Alvis-Zakzuk NJ, Amani R, Amusa GA, Amzat J, Andrews JR, Anil A, Anwer R, Aravkin AY, Areda D, Artamonov AA, Aruleba RT, Asemahagn MA, Atre SR, Aujayeb A, Azadi D, Azadnajafabad S, Azzam AY, Badar M, Badiye AD, Bagherieh S, Bahadorikhalili S, Baig AA, Banach M, Banik B, Bardhan M, Barqawi HJ, Basharat Z, Baskaran P, Basu S, Beiranvand M, Belete MA, Belew MA, Belgaumi UI, Beloukas A, Bettencourt PJG, Bhagavathula AS, Bhardwaj N, Bhardwaj P, Bhargava A, Bhat V, Bhatti JS, Bhatti GK, Bikbov B, Bitra VR, Bjegovic-Mikanovic V, Buonsenso D, Burkart K, Bustanji Y, Butt ZA, Camargos P, Cao Y, Carr S, Carvalho F, Cegolon L, Cenderadewi M, Cevik M, Chahine Y, Chattu VK, Ching PR, Chopra H, Chung E, Claassens MM, Coberly K, Cruz-Martins N, Dabo B, Dadana S, Dadras O, Darban I, Darega Gela J, Darwesh AM, Dashti M, Demessa BH, Demisse B, Demissie S, Derese AMA, Deribe K, Desai HD, Devanbu VGC, Dhali A, Dhama K, Dhingra S, Do THP, Dongarwar D, Dsouza HL, Dube J, Dziedzic AM, Ed-Dra A, Efendi F, Effendi DE, Eftekharimehrabad A, Ekadinata N, Ekundayo TC, Elhadi M, Elilo LT, Emeto TI, Engelbert Bain L, Fagbamigbe AF, Fahim A, Feizkhah A, Fetensa G, Fischer F, Gaipov A, Gandhi AP, Gautam RK, Gebregergis MW, Gebrehiwot M, Gebrekidan KG, Ghaffari K, Ghassemi F, Ghazy RM, Goodridge A, Goyal A, Guan SY, Gudeta MD, Guled RA, Gultom NB, Gupta VB, Gupta VK, Gupta S, Hagins H, Hailu SG, Hailu WB, Hamidi S, Hanif A, Harapan H, Hasan RS, Hassan S, Haubold J, Hezam K, Hong SH, Horita N, Hossain MB, Hosseinzadeh M, Hostiuc M, Hostiuc S, Huynh HH, Ibitoye SE, Ikuta KS, Ilic IM, Ilic MD, Islam MR, Ismail NE, Ismail F, Jafarzadeh A, Jakovljevic M, Jalili M, Janodia MD, Jomehzadeh N, Jonas JB, Joseph N, Joshua CE, Kabir Z, Kamble BD, Kanchan T, Kandel H, Kanmodi KK, Kantar RS, Karaye IM, Karimi Behnagh A, Kassa GG, Kaur RJ, Kaur N, Khajuria H, Khamesipour F, Khan YH, Khan MN, Khan Suheb MZ, Khatab K, Khatami F, Kim MS, Kosen S, Koul PA, Koulmane Laxminarayana SL, Krishan K, Kucuk Bicer B, Kuddus MA, Kulimbet M, Kumar N, Lal DK, Landires I, Latief K, Le TDT, Le TTT, Ledda C, Lee M, Lee SW, Lerango TL, Lim SS, Liu C, Liu X, Lopukhov PD, Luo H, Lv H, Mahajan PB, Mahboobipour AA, Majeed A, Malakan Rad E, Malhotra K, Malik MSA, Malinga LA, Mallhi TH, Manilal A, Martinez-Guerra BA, Martins-Melo FR, Marzo RR, Masoumi-Asl H, Mathur V, Maude RJ, Mehrotra R, Memish ZA, Mendoza W, Menezes RG, Merza MA, Mestrovic T, Mhlanga L, Misra S, Misra AK, Mithra P, Moazen B, Mohammed H, Mokdad AH, Monasta L, Moore CE, Mousavi P, Mulita F, Musaigwa F, Muthusamy R, Nagarajan AJ, Naghavi P, Naik GR, Naik G, Nair S, Nair TS, Natto ZS, Nayak BP, Negash H, Nguyen DH, Nguyen VT, Niazi RK, Nnaji CA, Nnyanzi LA, Noman EA, Nomura S, Oancea B, Obamiro KO, Odetokun IA, Odo DBO, Odukoya OO, Oh IH, Okereke CO, Okonji OC, Oren E, Ortiz-Brizuela E, Osuagwu UL, Ouyahia A, P A MP, Parija PP, Parikh RR, Park S, Parthasarathi A, Patil S, Pawar S, Peng M, Pepito VCF, Peprah P, Perdigão J, Perico N, Pham HT, Postma MJ, Prabhu ARA, Prasad M, Prashant A, Prates EJS, Rahim F, Rahman M, Rahman MA, Rahmati M, Rajaa S, Ramasamy SK, Rao IR, Rao SJ, Rapaka D, Rashid AM, Ratan ZA, Ravikumar N, Rawaf S, Reddy MMRK, Redwan EMM, Remuzzi G, Reyes LF, Rezaei N, Rezaeian M, Rezahosseini O, Rodrigues M, Roy P, Ruela GDA, Sabour S, Saddik B, Saeed U, Safi SZ, Saheb Sharif-Askari N, Saheb Sharif-Askari F, Sahebkar A, Sahiledengle B, Sahoo SS, Salam N, Salami AA, Saleem S, Saleh MA, Samadi Kafil H, Samadzadeh S, Samodra YL, Sanjeev RK, Saravanan A, Sawyer SM, Selvaraj S, Senapati S, Senthilkumaran S, Shah PA, Shahid S, Shaikh MA, Sham S, Shamshirgaran MA, Shanawaz M, Sharath M, Sherchan SP, Shetty RS, Shirzad-Aski H, Shittu A, Siddig EE, Silva JP, Singh S, Singh P, Singh H, Singh JA, Siraj MS, Siswanto S, Solanki R, Solomon Y, Soriano JB, Sreeramareddy CT, Srivastava VK, Steiropoulos P, Swain CK, Tabuchi T, Tampa M, Tamuzi JJLL, Tat NY, Tavakoli Oliaee R, Teklay G, Tesfaye EG, Tessema B, Thangaraju P, Thapar R, Thum CCC, Ticoalu JHV, Tleyjeh IM, Tobe-Gai R, Toma TM, Tram KH, Udoakang AJ, Umar TP, Umeokonkwo CD, Vahabi SM, Vaithinathan AG, van Boven JFM, Varthya SB, Wang Z, Warsame MSA, Westerman R, Wonde TE, Yaghoubi S, Yi S, Yiğit V, Yon DK, Yonemoto N, Yu C, Zakham F, Zangiabadian M, Zeukeng F, Zhang H, Zhao Y, Zheng P, Zielińska M, Salomon JA, Reiner Jr RC, Naghavi M, Vos T, Hay SI, Murray CJL, Kyu HH. Global, regional, and national age-specific progress towards the 2020 milestones of the WHO End TB Strategy: a systematic analysis for the Global Burden of Disease Study 2021. THE LANCET. INFECTIOUS DISEASES 2024; 24:698-725. [PMID: 38518787 PMCID: PMC11187709 DOI: 10.1016/s1473-3099(24)00007-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/09/2023] [Accepted: 01/08/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Global evaluations of the progress towards the WHO End TB Strategy 2020 interim milestones on mortality (35% reduction) and incidence (20% reduction) have not been age specific. We aimed to assess global, regional, and national-level burdens of and trends in tuberculosis and its risk factors across five separate age groups, from 1990 to 2021, and to report on age-specific progress between 2015 and 2020. METHODS We used the Global Burden of Diseases, Injuries, and Risk Factors Study 2021 (GBD 2021) analytical framework to compute age-specific tuberculosis mortality and incidence estimates for 204 countries and territories (1990-2021 inclusive). We quantified tuberculosis mortality among individuals without HIV co-infection using 22 603 site-years of vital registration data, 1718 site-years of verbal autopsy data, 825 site-years of sample-based vital registration data, 680 site-years of mortality surveillance data, and 9 site-years of minimally invasive tissue sample (MITS) diagnoses data as inputs into the Cause of Death Ensemble modelling platform. Age-specific HIV and tuberculosis deaths were established with a population attributable fraction approach. We analysed all available population-based data sources, including prevalence surveys, annual case notifications, tuberculin surveys, and tuberculosis mortality, in DisMod-MR 2.1 to produce internally consistent age-specific estimates of tuberculosis incidence, prevalence, and mortality. We also estimated age-specific tuberculosis mortality without HIV co-infection that is attributable to the independent and combined effects of three risk factors (smoking, alcohol use, and diabetes). As a secondary analysis, we examined the potential impact of the COVID-19 pandemic on tuberculosis mortality without HIV co-infection by comparing expected tuberculosis deaths, modelled with trends in tuberculosis deaths from 2015 to 2019 in vital registration data, with observed tuberculosis deaths in 2020 and 2021 for countries with available cause-specific mortality data. FINDINGS We estimated 9·40 million (95% uncertainty interval [UI] 8·36 to 10·5) tuberculosis incident cases and 1·35 million (1·23 to 1·52) deaths due to tuberculosis in 2021. At the global level, the all-age tuberculosis incidence rate declined by 6·26% (5·27 to 7·25) between 2015 and 2020 (the WHO End TB strategy evaluation period). 15 of 204 countries achieved a 20% decrease in all-age tuberculosis incidence between 2015 and 2020, eight of which were in western sub-Saharan Africa. When stratified by age, global tuberculosis incidence rates decreased by 16·5% (14·8 to 18·4) in children younger than 5 years, 16·2% (14·2 to 17·9) in those aged 5-14 years, 6·29% (5·05 to 7·70) in those aged 15-49 years, 5·72% (4·02 to 7·39) in those aged 50-69 years, and 8·48% (6·74 to 10·4) in those aged 70 years and older, from 2015 to 2020. Global tuberculosis deaths decreased by 11·9% (5·77 to 17·0) from 2015 to 2020. 17 countries attained a 35% reduction in deaths due to tuberculosis between 2015 and 2020, most of which were in eastern Europe (six countries) and central Europe (four countries). There was variable progress by age: a 35·3% (26·7 to 41·7) decrease in tuberculosis deaths in children younger than 5 years, a 29·5% (25·5 to 34·1) decrease in those aged 5-14 years, a 15·2% (10·0 to 20·2) decrease in those aged 15-49 years, a 7·97% (0·472 to 14·1) decrease in those aged 50-69 years, and a 3·29% (-5·56 to 9·07) decrease in those aged 70 years and older. Removing the combined effects of the three attributable risk factors would have reduced the number of all-age tuberculosis deaths from 1·39 million (1·28 to 1·54) to 1·00 million (0·703 to 1·23) in 2020, representing a 36·5% (21·5 to 54·8) reduction in tuberculosis deaths compared to those observed in 2015. 41 countries were included in our analysis of the impact of the COVID-19 pandemic on tuberculosis deaths without HIV co-infection in 2020, and 20 countries were included in the analysis for 2021. In 2020, 50 900 (95% CI 49 700 to 52 400) deaths were expected across all ages, compared to an observed 45 500 deaths, corresponding to 5340 (4070 to 6920) fewer deaths; in 2021, 39 600 (38 300 to 41 100) deaths were expected across all ages compared to an observed 39 000 deaths, corresponding to 657 (-713 to 2180) fewer deaths. INTERPRETATION Despite accelerated progress in reducing the global burden of tuberculosis in the past decade, the world did not attain the first interim milestones of the WHO End TB Strategy in 2020. The pace of decline has been unequal with respect to age, with older adults (ie, those aged >50 years) having the slowest progress. As countries refine their national tuberculosis programmes and recalibrate for achieving the 2035 targets, they could consider learning from the strategies of countries that achieved the 2020 milestones, as well as consider targeted interventions to improve outcomes in older age groups. FUNDING Bill & Melinda Gates Foundation.
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Bhattacharjee NV, Schumacher AE, Aali A, Abate YH, Abbasgholizadeh R, Abbasian M, Abbasi-Kangevari M, Abbastabar H, Abd ElHafeez S, Abd-Elsalam S, Abdollahi M, Abdollahifar MA, Abdoun M, Abdullahi A, Abebe M, Abebe SS, Abiodun O, Abolhassani H, Abolmaali M, Abouzid M, Aboye GB, Abreu LG, Abrha WA, Abrigo MRM, Abtahi D, Abualruz H, Abubakar B, Abu-Gharbieh E, Abu-Rmeileh NME, Adal TGG, Adane MM, Adeagbo OAA, Adedoyin RA, Adekanmbi V, Aden B, Adepoju AV, Adetokunboh OO, Adetunji JB, Adeyinka DA, Adeyomoye OI, Adnani QES, Adra S, Afolabi RF, Afyouni S, Afzal MS, Afzal S, Aghamiri S, Agodi A, Agyemang-Duah W, Ahinkorah BO, Ahlstrom AJ, Ahmad A, Ahmad D, Ahmad F, Ahmad MM, Ahmad S, Ahmad T, Ahmed A, Ahmed A, Ahmed H, Ahmed LA, Ahmed MS, Ahmed SA, Ajami M, Aji B, Akalu GT, Akbarialiabad H, Akinyemi RO, Akkaif MA, Akkala S, Al Hamad H, Al Hasan SM, Al Qadire M, AL-Ahdal TMA, Alalalmeh SO, Alalwan TA, Al-Aly Z, Alam K, Al-amer RM, Alanezi FM, Alanzi TM, Albakri A, Albashtawy M, AlBataineh MT, Alemi H, Alemi S, Alemu YM, Al-Eyadhy A, Al-Gheethi AAS, Alhabib KF, Alhajri N, Alhalaiqa FAN, Alhassan RK, Ali A, Ali BA, Ali L, Ali MU, Ali R, Ali SSS, Alif SM, Aligol M, Alijanzadeh M, Aljasir MAM, Aljunid SM, Al-Marwani S, Almazan JU, Al-Mekhlafi HM, Almidani O, Alomari MA, Al-Omari B, Alqahtani JS, Alqutaibi AY, Al-Raddadi RM, Al-Sabah SK, Altaf A, Al-Tawfiq JA, Altirkawi KA, Aluh DO, Alvi FJ, Alvis-Guzman N, Alwafi H, Al-Worafi YM, Aly H, Aly S, Alzoubi KH, Ameyaw EK, Amin TT, Amindarolzarbi A, Amini-Rarani M, Amiri S, Ampomah IG, Amugsi DA, Amusa GA, Ancuceanu R, Anderlini D, Andrade PP, Andrei CL, Andrei T, Anil A, Anil S, Ansar A, Ansari-Moghaddam A, Antony CM, Antriyandarti E, Anvari S, ANWAR SALEHA, Anwer R, Anyasodor AE, Arabloo J, Arabzadeh Bahri R, Arafa EA, Arafat M, Araújo AM, Aravkin AY, Aremu A, Aripov T, Arkew M, Armocida B, Ärnlöv J, Arooj M, Artamonov AA, Arulappan J, Aruleba RT, Arumugam A, Asadi-Lari M, Asemi Z, Asgary S, Asghariahmadabad M, Asghari-Jafarabadi M, Ashemo MY, Ashraf M, Ashraf T, Asika MO, Athari SS, Atout MMW, Atreya A, Aujayeb A, Ausloos M, Avan A, Aweke AM, Ayele GM, Ayyoubzadeh SM, Azadnajafabad S, Azevedo RMS, Azzam AY, Badar M, Badiye AD, Baghdadi S, Bagheri N, Bagherieh S, Bahmanziari N, Bai R, Baig AA, Baker JL, Bako AT, Bakshi RK, Balasubramanian M, Baltatu OC, Bam K, Banach M, Bandyopadhyay S, Banik B, Banik PC, Bansal H, Baran MF, Barchitta M, Bardhan M, Bardideh E, Barker-Collo SL, Bärnighausen TW, Barone-Adesi F, Barqawi HJ, Barrow A, Barteit S, Basharat Z, Bashir AIJ, Bashiru HA, Basiru A, Basso JD, Basu S, Batiha AMM, Batra K, Baune BT, Bayati M, Begum T, Behboudi E, Behnoush AH, Beiranvand M, Bejarano Ramirez DF, Bekele A, Belay SA, Belgaumi UI, Bell ML, Bello OO, Beloukas A, Bensenor IM, Berezvai Z, Berhie AY, Bermudez ANC, Bettencourt PJG, Bhagavathula AS, Bhardwaj N, Bhardwaj P, Bhardwaj PV, Bhaskar S, Bhat V, Bhatti GK, Bhatti JS, Bhatti MS, Bhatti R, Biondi A, Bisignano C, Biswas A, Biswas RK, Bitra VR, Bjørge T, Bliss E, Boachie MK, Bobirca AV, Bodolica V, Bodunrin AO, Bogale EK, Bogale KA, Bonakdar Hashemi M, Bora Basara B, Bouaoud S, Braithwaite D, Brauer M, Breitborde NJK, Bryazka D, Bulamu NB, Buonsenso D, Burkart K, Burns RA, Bustanji Y, Butt NS, Butt ZA, Caetano dos Santos FL, Calina D, Campos-Nonato IR, Cao F, Cao S, Capodici A, Carreras G, Carugno A, Castañeda-Orjuela CA, Castelpietra G, Cattaruzza MS, Caye A, Cegolon L, Cembranel F, Cerin E, Chadwick J, Chahine Y, Chakraborty C, Chalek J, Chan JSK, Charalampous P, Chattu VK, Chaturvedi S, Chavula MP, Chen AT, Chen H, Chen S, Chi G, Chichagi F, Chien JH, Ching PR, Cho WCS, Choi S, Chong B, Chopra H, Choudhari SG, Christopher DJ, Chu DT, Chukwu IS, Chung E, Chung SC, Cindi Z, Cioffi I, Ciuffreda R, Claro RM, Coberly K, Columbus A, Comfort H, Conde J, Criqui MH, Cruz-Martins N, Cuadra-Hernández SM, Dadana S, Dadras O, Dahiru T, Dai Z, Dalton B, Damiani G, Darwesh AM, Das JK, Das S, Dashti M, Dastiridou A, Dávila-Cervantes CA, Davletov K, Debele AT, Debopadhaya S, Delavari S, Delgado-Enciso I, Demeke D, Demessa BH, Deng X, Denova-Gutiérrez E, Deribe K, Dervenis N, Desai HD, Desai R, Devanbu VGC, Dhali A, Dhama K, Dhimal M, Dhulipala VR, Dias da Silva D, Diaz D, Diaz MJ, Dima A, Ding DD, Dirac MA, Do TC, Do THP, do Prado CB, Dohare S, Dong W, D'Oria M, dos Santos WM, Doshmangir L, Dowou RK, Dsouza AC, Dsouza HL, Dsouza V, Dube J, Duprey J, Duraes AR, Duraisamy S, Durojaiye OC, Dutta S, Dwyer-Lindgren L, Dzianach PA, Dziedzic AM, Ebrahimi A, Edinur HA, Edvardsson K, Efendi F, Eikemo TA, Ekholuenetale M, El Tantawi M, Elemam NM, ElGohary GMT, Elhadi M, Elilo LT, Elmeligy OAA, Elmonem MA, Elshaer M, Elsohaby I, Emami Zeydi A, Engelbert Bain L, Eskandarieh S, Esposito F, Estep K, Etaee F, Fabin N, Fagbamigbe AF, Fahimi S, Fakhri-Demeshghieh A, Falzone L, Faramarzi A, Faris MEM, Farmer S, Faro A, Fasanmi AO, Fatehizadeh A, Fauk NK, Fazeli P, Feigin VL, Fereshtehnejad SM, Feroze AH, Ferrara P, Ferreira N, Fetensa G, Filip I, Fischer F, Flavel J, Foigt NA, Folayan MO, Fomenkov AA, Foroutan B, Foschi M, Fowobaje KR, Francis KL, Freitas A, Fukumoto T, Fuller JE, Fux B, Gaal PA, Gadanya MA, Gaidhane AM, Galali Y, Gallus S, Gandhi AP, Ganesan B, Ganiyani MA, Garcia-Gordillo M, Garg N, Gautam RK, Gazzelloni F, Gbadamosi SO, Gebregergis MW, Gebrehiwot M, Gebremariam TB, Gebremariam TBB, Gebremeskel TG, Geda YF, Georgescu SR, Gerema U, Geremew H, Getachew ME, Gething PW, Ghasemi M, Ghasempour Dabaghi G, Ghasemzadeh A, Ghassemi F, Ghazy RM, Ghimire S, Gholamian A, Gholamrezanezhad A, Ghorbani M, Ghoshal AG, Ghuge AD, Gil AU, Gill TK, Giorgi M, Girmay A, Glasbey JC, Göbölös L, Goel A, Golchin A, Golechha M, Goleij P, Gopalani SV, Goudarzi H, Goulart AC, Goyal A, Graham SM, Grivna M, Guan SY, Guarducci G, Gubari MIM, Gudeta MD, Guicciardi S, Gulati S, Gulisashvili D, Gunawardane DA, Guo C, Gupta AK, Gupta B, Gupta MK, Gupta M, Gupta S, Gupta VB, Gupta VK, Gupta VK, Haakenstad A, Habibzadeh F, Hadi NR, Haep N, Hajibeygi R, Haller S, Halwani R, Hamadeh RR, Hamdy NM, Hameed S, Hamidi S, Han Q, Handal AJ, Hankey GJ, Haque MN, Haro JM, Hasaballah AI, Hasan I, Hasan MJ, Hasan SM, Hasani H, Hasnain MS, Hassan A, Hassan I, Hassanipour S, Hassankhani H, Hay SI, Hebert JJ, Hegazi OE, Heidari M, Helfer B, Hemmati M, Herrera-Serna BY, Herteliu C, Hessami K, Hezam K, Hiraike Y, Hoan NQ, Holla R, Horita N, Hossain MM, Hossain MBH, Hosseinzadeh H, Hosseinzadeh M, Hostiuc M, Hostiuc S, Hsairi M, Hsieh VCR, Hu C, Huang J, Huda MM, Humayun A, Hussain J, Hussein NR, Huynh HH, Hwang BF, Ibitoye SE, Iftikhar PM, Ilesanmi OS, Ilic IM, Ilic MD, Immurana M, Inbaraj LR, Iqbal A, Islam MR, Ismail NE, Iso H, Isola G, Iwagami M, Iyer M, J LM, Jaafari J, Jacob L, Jadidi-Niaragh F, Jaggi K, Jahankhani K, Jahanmehr N, Jahrami H, Jain A, Jain N, Jairoun AA, Jakovljevic M, Jamshidi E, Javadov S, Javaheri T, Jayapal SK, Jayaram S, Jee SH, Jeganathan J, Jha AK, Jha RP, Jiang H, Jokar M, Jonas JB, Joo T, Joseph N, Joshua CE, Joukar F, Jozwiak JJ, Jürisson M, K V, Kaambwa B, Kabir A, Kabir A, Kabir H, Kabir Z, Kalani R, Kalankesh LR, Kaliyadan F, Kalra S, Kamath R, Kamath S, Kanchan T, Kanmiki EW, Kanmodi KK, Kannan S S, Kansal SK, Kantar RS, Kapoor N, Karajizadeh M, Karami M, Karaye IM, Kashoo FZ, Kasraei H, Kassebaum NJ, Kassel MB, Kauppila JH, Kazemi F, Kazeminia S, Kempen JH, Kendal ES, Keshtkar K, Keykhaei M, Khajuria H, Khalaji A, Khalid N, Khalil AA, Khalilian A, Khamesipour F, Khan A, Khan A, Khan I, Khan MN, Khan M, Khan MJ, Khan MAB, Khang YH, Khanmohammadi S, Khatab K, Khavandegar A, Khayat Kashani HR, Khidri FF, Khormali M, Khosravi MA, Khosrowjerdi M, Kidane WT, Kifle ZD, Kim JS, Kim MS, Kimokoti RW, Kinzel KE, Kiross GT, Kisa A, Kisa S, Kolahi AA, Kompani F, Koren G, Korzh O, Kosen S, Koulmane Laxminarayana SL, Krishan K, Krishna V, Krishnamoorthy V, Kuate Defo B, Kubeisy CM, Kucuk Bicer B, Kuddus MA, Kuddus M, Kuitunen I, Kulimbet M, Kumar H, Kundu S, Kunle KR, Kurmi OP, Kusnali A, Kusuma D, Kyei EF, Kyriopoulos I, La Vecchia C, Lacey B, Ladan MA, Laflamme L, Lahariya C, Lai DTC, Lal DK, Lalloo R, Lám J, Lamnisos D, Landires I, Lanfranchi F, Langguth B, Laplante-Lévesque A, Larson HJ, Larsson AO, Lasrado S, Latief K, Latifinaibin K, Le LKD, Le NHH, Le TDT, Ledda C, Lee M, Lee PH, Lee SW, Lee YH, Lema GK, Leong E, Lerango TL, Li A, Li MC, Li S, Li W, Li X, Ligade VS, Lim SS, Lin RT, Lindstedt PA, Listl S, Liu G, Liu J, Liu X, Liu X, Liu Y, Llanaj E, López-Bueno R, Lopukhov PD, Lorenzovici L, Lotufo PA, Lubinda J, Lucchetti G, Lugo A, Lunevicius R, Lv H, Ma ZF, Maass KL, Machoy M, Madureira-Carvalho ÁM, Magdy Abd El Razek M, Maghazachi AA, Mahjoub S, Mahmoud MA, Majeed A, Malagón-Rojas JN, Malakan Rad E, Malhotra K, Malik AA, Malik I, Malta DC, Mamun AA, Manla Y, Mansoori Y, Mansour A, Mansouri B, Mansouri Z, Mansournia MA, Maravilla JC, Marino M, Marjani A, Martinez G, Martinez-Piedra R, Martins-Melo FR, Martorell M, Maryam S, Marzo RR, Masoudi A, Mattumpuram J, Maude RJ, Maugeri A, May EA, Mayeli M, Mazaheri M, McGrath JJ, McKee M, McKowen ALW, McLaughlin SA, McPhail SM, Mehra R, Mehrabani-Zeinabad K, Mehrabi Nasab E, Mekene Meto T, Mendez-Lopez MAM, Mendoza W, Menezes RG, Mensah GA, Mentis AFA, Meo SA, Merati M, Meretoja A, Meretoja TJ, Mersha AM, Mestrovic T, Metanat P, Mettananda KCD, Mettananda S, Mhlanga A, Mhlanga L, Mi T, Miazgowski T, Micha G, Michalek IM, Miller TR, Minh LHN, Mirghafourvand M, Mirrakhimov EM, Mirutse MK, Mirza M, Mirzaei R, Mishra A, Misra S, Mitchell PB, Mittal C, Moazen B, Mohamed AZ, Mohamed AI, Mohamed J, Mohamed MFH, Mohamed NS, Mohammad-Alizadeh-Charandabi S, Mohammadi S, Mohammadian-Hafshejani A, Mohammed M, Mohammed S, Mohammed S, Mokdad AH, Mokhtarzadehazar P, Molavi Vardanjani H, Molinaro S, Monasta L, Moni MA, Moradi M, Moradi Y, Moraga P, Moreira RS, Morovatdar N, Morrison SD, Morze J, Mosapour A, Mossialos E, Motappa R, Mousavi P, Mousavi Khaneghah A, Mpundu-Kaambwa C, Mubarik S, Muccioli L, Mulita F, Munjal K, Murillo-Zamora E, Musa J, Musaigwa F, Musina AM, Muthu S, Muthupandian S, Muzaffar M, Myung W, Nagarajan AJ, Nagel G, Naghavi P, Naik GR, Naik G, Naimzada MD, Nainu F, Nangia V, Narasimha Swamy S, Nascimento BR, Nascimento GG, Naser AY, Nasiri MJ, Natto ZS, Nauman J, Naveed M, Nayak BP, Nayak VC, Ndejjo R, Nduaguba SO, Negash H, Negesse CT, Negoi I, Negoi RI, Nejadghaderi SA, Nejjari C, Nepal S, Netsere HB, Nguefack-Tsague G, Ngunjiri JW, Nguyen DH, Nguyen HTH, Nguyen PT, Nguyen QP, Nguyen VT, Niazi RK, Nigatu YT, Nikolouzakis TK, Nikoobar A, Nikpoor AR, Nnaji CA, Nnyanzi LA, Noman EA, Nomura S, Noreen M, Noroozi N, Nri-Ezedi CA, Nunemo MH, Nuñez-Samudio V, Nurrika D, Nutor JJ, Oancea B, Obamiro KO, Odetokun IA, Odogwu NM, O'Donnell MJ, Odukoya OO, Oguntade AS, Oguta JO, Oh IH, Okeke SR, Okekunle AP, Okonji OC, Okwute PG, Olagunju AT, Olasupo OO, Olatubi MI, Oliveira GMM, Olusanya BO, Olusanya JO, Oluwatunase GO, Omar HA, Omer GL, Onwujekwe OE, Ordak M, Orisakwe OE, Orish VN, Ortega-Altamirano DV, Ortiz A, Ortiz-Prado E, Osman WMS, Osuagwu UL, Osuolale O, Otoiu A, Otstavnov SS, Ouyahia A, Ouyang G, Owolabi MO, Ozten Y, P A MP, Pahlevan Fallahy MT, Pan F, Pan HF, Pana A, Panda P, Panda-Jonas S, Pangaribuan HU, Panos GD, Panos LD, Pantazopoulos I, Pantea Stoian AM, Parikh RR, Park S, Parthasarathi A, Pashaei A, Passera R, Patel HM, Patel J, Patil S, Patoulias D, Patthipati VS, Paudel U, Paun M, Pazoki Toroudi H, Pease SA, Peden AE, Pedersini P, Peng M, Pensato U, Pepito VCF, Peprah P, Pereira G, Peres MFP, Perianayagam A, Perico N, Perna S, Pestell RG, Petermann-Rocha FE, Pham HT, Philip AK, Pierannunzio D, Pigeolet M, Pigott DM, Plotnikov E, Poddighe D, Pollner P, Poluru R, Postma MJ, Pourali G, Pourshams A, Pourtaheri N, Prabhu D, Prada SI, Pradhan PMS, Prasad M, Prashant A, Purohit BM, Puvvula J, Qasim NH, Qattea I, R D, Rabiee Rad M, Radfar A, Radhakrishnan V, Raee P, Raeisi Shahraki H, Rafiei A, Rafiei Alavi SN, Raggi C, Raghav PR, Rahim F, Rahim MJ, Rahman MM, Rahman MHU, Rahman M, Rahman MA, Rahmanian V, Rahmati M, Rahnavard N, Rai P, Raimondo D, Rajabpour-Sanati A, Rajput P, Ram P, Ramasamy SK, Rana J, Rana K, Rana SS, Ranabhat CL, Rancic N, Rane A, Ranjan S, Rao CR, Rao IR, Rapaka D, Rasella D, Rashedi S, Rashedi V, Rashidi MM, Rasul A, Ratan ZA, Rathnaiah Babu G, Rauniyar SK, Ravikumar N, Rawaf DL, Rawaf S, Rawassizadeh R, Rawlley B, Reddy MMRK, Redwan EMM, Remuzzi G, Reshmi B, Rezaei N, Rezaei Nejad A, Rezaeian M, Riad A, Riaz MA, Rickard J, Rikhtegar R, Robinson-Oden HE, Rodrigues CF, Rodriguez JAB, Rohilla R, Romadlon DS, Ronfani L, Rout HS, Roy B, Roy N, Roy P, Rubagotti E, Ruela GDA, Rumisha SF, Runghien T, S M, S N C, Saad AMA, Saadatian Z, Saber-Ayad MM, SaberiKamarposhti M, Sabour S, Sada F, Saddik B, Sadee BA, Sadeghi E, Sadeghi E, Saeb MR, Saeed U, Safi SZ, Sagoe D, Saha M, Sahebkar A, Sahoo SS, Sahu M, Saif Z, Sakshaug JW, Salamati P, Salami AA, Saleh MA, Salem MR, Salem MZY, Salimi S, Samadzadeh S, Samodra YL, Samuel VP, Samy AM, Sanabria J, Sanadgol N, Sanna F, Santric-Milicevic MM, Saqib H, Saraswathy SYI, Saravanan A, Saravi B, Sarikhani Y, Sarkar T, Sarmiento-Suárez R, Sarode GS, Sarode SC, Sarveazad A, Sathian B, Sathish T, Sathyanarayan A, Sayeed A, Sayeed MA, Scarmeas N, Schlee W, Schuermans A, Schwebel DC, Schwendicke F, Selvaraj S, Sengupta P, Senthilkumaran S, Sepanlou SG, Serban D, Serván-Mori E, Sethi Y, SeyedAlinaghi S, Seyedi SA, Seylani A, Shafie M, Shah J, Shah PA, Shahbandi A, Shahid S, Shahwan MJ, Shaikh A, Shaikh MA, Shamim MA, Shams-Beyranvand M, Shamsi MA, Shanawaz M, Shankar A, Shannawaz M, Sharath M, Sharfaei S, Sharifan A, Sharifi-Rad J, Sharma M, Sharma R, Sharma U, Sharma V, Shastry RP, Shavandi A, Shaw DH, Shayan AM, Shayan M, Shehabeldine AME, Sheikh A, Sheikhi RA, Shenoy MM, Shetty PH, Shi P, Shiferaw D, Shigematsu M, Shiri R, Shirkoohi R, Shittu A, Shivarov V, Shokraneh F, Shool S, Shorofi SA, Shuja KH, Shuval K, Siddig EE, Silva JP, Silva LMLR, Silva S, Simonetti B, Singal A, Singh A, Singh BB, Singh JA, Siraj MS, Smith G, Socea B, Sokhan A, Solanki R, Solanki S, Soleimani H, Soliman SSM, Solomon Y, Song Y, Sorensen RJD, Spartalis M, Sreeramareddy CT, Srivastava VK, Stanikzai MH, Starodubov VI, Starodubova AV, Stefan SC, Steiropoulos P, Stokes MA, Subramaniyan V, Suleman M, Suliankatchi Abdulkader R, Sultana A, Sun J, Swain CK, Sykes BL, Szarpak L, Szeto MD, Szócska M, Tabaee Damavandi P, Tabarés-Seisdedos R, Tabatabaei Malazy O, Tabatabaeizadeh SA, Tabatabai S, Tabb KM, Tabish M, Taheri Soodejani M, Taiba J, Tajbakhsh A, Talaat IM, Talukder A, Tampa M, Tamuzi JL, Tan KK, Tang H, Tareke DADA, Tariku MK, Tat VY, Tavangar SM, Teimoori M, Temsah MH, Temsah RMH, Teramoto M, Terefa DR, Tesler R, Teye-Kwadjo E, Thakur R, Thangaraju P, Thankappan KR, Thapar R, Tharwat S, Thayakaran R, Thomas N, Tichopad A, Ticoalu JHV, Tiruye TY, Titova MV, Tonelli M, Tovani-Palone MR, Traini E, Tran JT, Tran NM, Trihandini I, Tromans SJ, Truyen TTTT, Tsatsakis A, Tsermpini EE, Tumurkhuu M, Tyrovolas S, Uddin SMN, Udoakang AJ, Udoh A, Ullah A, Ullah S, Ullah S, Umakanthan S, Umeokonkwo CD, Unim B, Unnikrishnan B, Upadhyay E, Usman JS, Vacante M, Vahabi SM, Vaithinathan AG, Valizadeh R, Van den Eynde J, Varavikova E, Varga O, Vart P, Varthya SB, Vasankari TJ, Vellingiri B, Venugopal D, Verghese NA, Verma M, Veroux M, Verras GI, Vervoort D, Villafañe JH, Vinayak M, Violante FS, Vishwakarma M, Vladimirov SK, Vlassov V, Vo B, Volovat SR, Vos T, Vujcic IS, Wafa HA, Waheed Y, Wakwoya EB, Wang C, Wang D, Wang F, Wang S, Wang Y, Wang YP, Ward P, Wassie EG, Watson S, Weaver MR, Weerakoon KG, Weiss DJ, Wells KM, Wen YF, Westerman R, Wiangkham T, Wickramasinghe DP, Wickramasinghe ND, Willeit P, Wondimagegene YA, Wu F, Xia J, Xiao H, Xu G, Xu S, Xu X, Yadollahpour A, Yaghoobpoor S, Yaghoobpour T, Yaghoubi S, Yahaya ZS, Yang D, Yang L, Yano Y, Yaribeygi H, Ye P, Yesodharan R, Yesuf SA, Yezli S, Yigezu A, Yip P, Yon DK, Yonemoto N, You Y, Younis MZ, Yousefi Z, Yu C, Yu Y, Yuan CW, Zafari N, Zakham F, Zaki N, Zamagni G, Zandi M, Zandieh GGZ, Zangiabadian M, Zastrozhin MS, Zhang H, Zhang M, Zhang Y, Zhong C, Zhou J, Zhu B, Zhu L, Zielińska M, Zou Z, Zyoud SH, Murray CJL, Smith AE, Vollset SE. Global fertility in 204 countries and territories, 1950-2021, with forecasts to 2100: a comprehensive demographic analysis for the Global Burden of Disease Study 2021. Lancet 2024; 403:2057-2099. [PMID: 38521087 PMCID: PMC11122687 DOI: 10.1016/s0140-6736(24)00550-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/28/2023] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Accurate assessments of current and future fertility-including overall trends and changing population age structures across countries and regions-are essential to help plan for the profound social, economic, environmental, and geopolitical challenges that these changes will bring. Estimates and projections of fertility are necessary to inform policies involving resource and health-care needs, labour supply, education, gender equality, and family planning and support. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 produced up-to-date and comprehensive demographic assessments of key fertility indicators at global, regional, and national levels from 1950 to 2021 and forecast fertility metrics to 2100 based on a reference scenario and key policy-dependent alternative scenarios. METHODS To estimate fertility indicators from 1950 to 2021, mixed-effects regression models and spatiotemporal Gaussian process regression were used to synthesise data from 8709 country-years of vital and sample registrations, 1455 surveys and censuses, and 150 other sources, and to generate age-specific fertility rates (ASFRs) for 5-year age groups from age 10 years to 54 years. ASFRs were summed across age groups to produce estimates of total fertility rate (TFR). Livebirths were calculated by multiplying ASFR and age-specific female population, then summing across ages 10-54 years. To forecast future fertility up to 2100, our Institute for Health Metrics and Evaluation (IHME) forecasting model was based on projections of completed cohort fertility at age 50 years (CCF50; the average number of children born over time to females from a specified birth cohort), which yields more stable and accurate measures of fertility than directly modelling TFR. CCF50 was modelled using an ensemble approach in which three sub-models (with two, three, and four covariates variously consisting of female educational attainment, contraceptive met need, population density in habitable areas, and under-5 mortality) were given equal weights, and analyses were conducted utilising the MR-BRT (meta-regression-Bayesian, regularised, trimmed) tool. To capture time-series trends in CCF50 not explained by these covariates, we used a first-order autoregressive model on the residual term. CCF50 as a proportion of each 5-year ASFR was predicted using a linear mixed-effects model with fixed-effects covariates (female educational attainment and contraceptive met need) and random intercepts for geographical regions. Projected TFRs were then computed for each calendar year as the sum of single-year ASFRs across age groups. The reference forecast is our estimate of the most likely fertility future given the model, past fertility, forecasts of covariates, and historical relationships between covariates and fertility. We additionally produced forecasts for multiple alternative scenarios in each location: the UN Sustainable Development Goal (SDG) for education is achieved by 2030; the contraceptive met need SDG is achieved by 2030; pro-natal policies are enacted to create supportive environments for those who give birth; and the previous three scenarios combined. Uncertainty from past data inputs and model estimation was propagated throughout analyses by taking 1000 draws for past and present fertility estimates and 500 draws for future forecasts from the estimated distribution for each metric, with 95% uncertainty intervals (UIs) given as the 2·5 and 97·5 percentiles of the draws. To evaluate the forecasting performance of our model and others, we computed skill values-a metric assessing gain in forecasting accuracy-by comparing predicted versus observed ASFRs from the past 15 years (2007-21). A positive skill metric indicates that the model being evaluated performs better than the baseline model (here, a simplified model holding 2007 values constant in the future), and a negative metric indicates that the evaluated model performs worse than baseline. FINDINGS During the period from 1950 to 2021, global TFR more than halved, from 4·84 (95% UI 4·63-5·06) to 2·23 (2·09-2·38). Global annual livebirths peaked in 2016 at 142 million (95% UI 137-147), declining to 129 million (121-138) in 2021. Fertility rates declined in all countries and territories since 1950, with TFR remaining above 2·1-canonically considered replacement-level fertility-in 94 (46·1%) countries and territories in 2021. This included 44 of 46 countries in sub-Saharan Africa, which was the super-region with the largest share of livebirths in 2021 (29·2% [28·7-29·6]). 47 countries and territories in which lowest estimated fertility between 1950 and 2021 was below replacement experienced one or more subsequent years with higher fertility; only three of these locations rebounded above replacement levels. Future fertility rates were projected to continue to decline worldwide, reaching a global TFR of 1·83 (1·59-2·08) in 2050 and 1·59 (1·25-1·96) in 2100 under the reference scenario. The number of countries and territories with fertility rates remaining above replacement was forecast to be 49 (24·0%) in 2050 and only six (2·9%) in 2100, with three of these six countries included in the 2021 World Bank-defined low-income group, all located in the GBD super-region of sub-Saharan Africa. The proportion of livebirths occurring in sub-Saharan Africa was forecast to increase to more than half of the world's livebirths in 2100, to 41·3% (39·6-43·1) in 2050 and 54·3% (47·1-59·5) in 2100. The share of livebirths was projected to decline between 2021 and 2100 in most of the six other super-regions-decreasing, for example, in south Asia from 24·8% (23·7-25·8) in 2021 to 16·7% (14·3-19·1) in 2050 and 7·1% (4·4-10·1) in 2100-but was forecast to increase modestly in the north Africa and Middle East and high-income super-regions. Forecast estimates for the alternative combined scenario suggest that meeting SDG targets for education and contraceptive met need, as well as implementing pro-natal policies, would result in global TFRs of 1·65 (1·40-1·92) in 2050 and 1·62 (1·35-1·95) in 2100. The forecasting skill metric values for the IHME model were positive across all age groups, indicating that the model is better than the constant prediction. INTERPRETATION Fertility is declining globally, with rates in more than half of all countries and territories in 2021 below replacement level. Trends since 2000 show considerable heterogeneity in the steepness of declines, and only a small number of countries experienced even a slight fertility rebound after their lowest observed rate, with none reaching replacement level. Additionally, the distribution of livebirths across the globe is shifting, with a greater proportion occurring in the lowest-income countries. Future fertility rates will continue to decline worldwide and will remain low even under successful implementation of pro-natal policies. These changes will have far-reaching economic and societal consequences due to ageing populations and declining workforces in higher-income countries, combined with an increasing share of livebirths among the already poorest regions of the world. FUNDING Bill & Melinda Gates Foundation.
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Schumacher AE, Kyu HH, Aali A, Abbafati C, Abbas J, Abbasgholizadeh R, Abbasi MA, Abbasian M, Abd ElHafeez S, Abdelmasseh M, Abd-Elsalam S, Abdelwahab A, Abdollahi M, Abdoun M, Abdullahi A, Abdurehman AM, Abebe M, Abedi A, Abedi A, Abegaz TM, Abeldaño Zuñiga RA, Abhilash ES, Abiodun OO, Aboagye RG, Abolhassani H, Abouzid M, Abreu LG, Abrha WA, Abrigo MRM, Abtahi D, Abu Rumeileh S, Abu-Rmeileh NME, Aburuz S, Abu-Zaid A, Acuna JM, Adair T, Addo IY, Adebayo OM, Adegboye OA, Adekanmbi V, Aden B, Adepoju AV, Adetunji CO, Adeyeoluwa TE, Adeyomoye OI, Adha R, Adibi A, Adikusuma W, Adnani QES, Adra S, Afework A, Afolabi AA, Afraz A, Afyouni S, Afzal S, Agasthi P, Aghamiri S, Agodi A, Agyemang-Duah W, Ahinkorah BO, Ahmad A, Ahmad D, Ahmad F, Ahmad MM, Ahmad T, Ahmadi K, Ahmadzade AM, Ahmadzade M, Ahmed A, Ahmed H, Ahmed LA, Ahmed MB, Ahmed SA, Ajami M, Aji B, Ajumobi O, Akalu GT, Akara EM, Akinosoglou K, Akkala S, Akyirem S, Al Hamad H, Al Hasan SM, Al Homsi A, Al Qadire M, Ala M, Aladelusi TO, AL-Ahdal TMA, Alalalmeh SO, Al-Aly Z, Alam K, Alam M, Alam Z, Al-amer RM, Alanezi FM, Alanzi TM, Albashtawy M, AlBataineh MT, Aldridge RW, Alemi S, Al-Eyadhy A, Al-Gheethi AAS, Alhabib KF, Alhalaiqa FAN, Al-Hanawi MK, Ali A, Ali A, Ali BA, Ali H, Ali MU, Ali R, Ali SSS, Ali Z, Alian Samakkhah S, Alicandro G, Alif SM, Aligol M, Alimi R, Aliyi AA, Al-Jumaily A, Aljunid SM, Almahmeed W, Al-Marwani S, Al-Maweri SAA, Almazan JU, Al-Mekhlafi HM, Almidani O, Alomari MA, Alonso N, Alqahtani JS, Alqutaibi AY, Al-Sabah SK, Altaf A, Al-Tawfiq JA, Altirkawi KA, Alvi FJ, Alwafi H, Al-Worafi YM, Aly H, Alzoubi KH, Amare AT, Ameyaw EK, Amhare AF, Amin TT, Amindarolzarbi A, Aminian Dehkordi J, Amiri S, Amu H, Amugsi DA, Amzat J, Ancuceanu R, Anderlini D, Andrade PP, Andrei CL, Andrei T, Angappan D, Anil A, Anjum A, Antony CM, Antriyandarti E, Anuoluwa IA, Anwar SL, Anyasodor AE, Appiah SCY, Aqeel M, Arabloo J, Arabzadeh Bahri R, Arab-Zozani M, Arafat M, Araújo AM, Aravkin AY, Aremu A, Ariffin H, Aripov T, Armocida B, Arooj M, Artamonov AA, Artanti KD, Arulappan J, Aruleba IT, Aruleba RT, Arumugam A, Asaad M, Asgary S, Ashemo MY, Ashraf M, Asika MO, Athari SS, Atout MMW, Atreya A, Attia S, Aujayeb A, Avan A, Awotidebe AW, Ayala Quintanilla BP, Ayanore MA, Ayele GM, Ayuso-Mateos JL, Ayyoubzadeh SM, Azadnajafabad S, Azhar GS, Aziz S, Azzam AY, Babashahi M, Babu AS, Badar M, Badawi A, Badiye AD, Baghdadi S, Bagheri N, Bagherieh S, Bah S, Bahadorikhalili S, Bai J, Bai R, Baker JL, Bakkannavar SM, Bako AT, Balakrishnan S, Balogun SA, Baltatu OC, Bam K, Banach M, Bandyopadhyay S, Banik B, Banik PC, Bansal H, Barati S, Barchitta M, Bardhan M, Barker-Collo SL, Barone-Adesi F, Barqawi HJ, Barr RD, Barrero LH, Basharat Z, Bashir AIJ, Bashiru HA, Baskaran P, Basnyat B, Bassat Q, Basso JD, Basu S, Batra K, Batra R, Baune BT, Bayati M, Bayileyegn NS, Beaney T, Bedi N, Begum T, Behboudi E, Behnoush AH, Beiranvand M, Bejarano Ramirez DF, Belgaumi UI, Bell ML, Bello AK, Bello MB, Bello OO, Belo L, Beloukas A, Bendak S, Bennett DA, Bensenor IM, Benzian H, Berezvai Z, Berman AE, Bermudez ANC, Bettencourt PJG, Beyene HB, Beyene KA, Bhagat DS, Bhagavathula AS, Bhala N, Bhalla A, Bhandari D, Bhardwaj N, Bhardwaj P, Bhardwaj PV, Bhargava A, Bhaskar S, Bhat V, Bhatti GK, Bhatti JS, Bhatti MS, Bhatti R, Bhutta ZA, Bikbov B, Binmadi N, Bintoro BS, Biondi A, Bisignano C, Bisulli F, Biswas A, Biswas RK, Bitaraf S, Bjørge T, Bleyer A, Boampong MS, Bodolica V, Bodunrin AO, Bolarinwa OA, Bonakdar Hashemi M, Bonny A, Bora K, Bora Basara B, Borodo SB, Borschmann R, Botero Carvajal A, Bouaoud S, Boudalia S, Boyko EJ, Bragazzi NL, Braithwaite D, Brenner H, Britton G, Browne AJ, Brunoni AR, Bulamu NB, Bulto LN, Buonsenso D, Burkart K, Burns RA, Burugina Nagaraja S, Busse R, Bustanji Y, Butt ZA, Caetano dos Santos FL, Cai T, Calina D, Cámera LA, Campos LA, Campos-Nonato IR, Cao C, Cardenas CA, Cárdenas R, Carr S, Carreras G, Carrero JJ, Carugno A, Carvalho F, Carvalho M, Castaldelli-Maia JM, Castañeda-Orjuela CA, Castelpietra G, Catalá-López F, Catapano AL, Cattaruzza MS, Caye A, Cederroth CR, Cembranel F, Cenderadewi M, Cercy KM, Cerin E, Cevik M, Chacón-Uscamaita PRU, Chahine Y, Chakraborty C, Chan JSK, Chang CK, Charalampous P, Charan J, Chattu VK, Chatzimavridou-Grigoriadou V, Chavula MP, Cheema HA, Chen AT, Chen H, Chen L, Chen MX, Chen S, Cherbuin N, Chew DS, Chi G, Chirinos-Caceres JL, Chitheer A, Cho SMJ, Cho WCS, Chong B, Chopra H, Choudhary R, Chowdhury R, Chu DT, Chukwu IS, Chung E, Chung E, Chung SC, Cini KI, Clark CCT, Coberly K, Columbus A, Comfort H, Conde J, Conti S, Cortesi PA, Costa VM, Cousin E, Cowden RG, Criqui MH, Cruz-Martins N, Culbreth GT, Cullen P, Cunningham M, da Silva e Silva D, Dadana S, Dadras O, Dai Z, Dalal K, Dalli LL, Damiani G, D'Amico E, Daneshvar S, Darwesh AM, Das JK, Das S, Dash NR, Dashti M, Dávila-Cervantes CA, Davis Weaver N, Davletov K, De Leo D, Debele AT, Degenhardt L, Dehbandi R, Deitesfeld L, Delgado-Enciso I, Delgado-Ortiz L, Demant D, Demessa BH, Demetriades AK, Deng X, Denova-Gutiérrez E, Deribe K, Dervenis N, Des Jarlais DC, Desai HD, Desai R, Deuba K, Devanbu VGC, Dey S, Dhali A, Dhama K, Dhimal ML, Dhimal M, Dhingra S, Dias da Silva D, Diaz D, Dima A, Ding DD, Dirac MA, Dixit A, Dixit SG, Do TC, Do THP, do Prado CB, Dodangeh M, Dokova KG, Dolecek C, Dorsey ER, dos Santos WM, Doshi R, Doshmangir L, Douiri A, Dowou RK, Driscoll TR, Dsouza HL, Dube J, Dumith SC, Dunachie SJ, Duncan BB, Duraes AR, Duraisamy S, Durojaiye OC, Dutta S, Dzianach PA, Dziedzic AM, Ebenezer O, Eboreime E, Ebrahimi A, Echieh CP, Ed-Dra A, Edinur HA, Edvardsson D, Edvardsson K, Efendi D, Efendi F, Eghdami S, Eikemo TA, Eini E, Ekholuenetale M, Ekpor E, Ekundayo TC, El Arab RA, El Morsi DAW, El Sayed Zaki M, El Tantawi M, Elbarazi I, Elemam NM, Elgar FJ, Elgendy IY, ElGohary GMT, Elhabashy HR, Elhadi M, Elmeligy OAA, Elshaer M, Elsohaby I, Emami Zeydi A, Emamverdi M, Emeto TI, Engelbert Bain L, Erkhembayar R, Eshetie TC, Eskandarieh S, Espinosa-Montero J, Estep K, Etaee F, Eze UA, Fabin N, Fadaka AO, Fagbamigbe AF, Fahimi S, Falzone L, Farinha CSES, Faris MEM, Farjoud Kouhanjani M, Faro A, Farrokhpour H, Fatehizadeh A, Fattahi H, Fauk NK, Fazeli P, Feigin VL, Fekadu G, Fereshtehnejad SM, Feroze AH, Ferrante D, Ferrara P, Ferreira N, Fetensa G, Filip I, Fischer F, Flavel J, Flaxman AD, Flor LS, Florin BT, Folayan MO, Foley KM, Fomenkov AA, Force LM, Fornari C, Foroutan B, Foschi M, Francis KL, Franklin RC, Freitas A, Friedman J, Friedman SD, Fukumoto T, Fuller JE, Gaal PA, Gadanya MA, Gaihre S, Gaipov A, Gakidou E, Galali Y, Galehdar N, Gallus S, Gan Q, Gandhi AP, Ganesan B, Garg J, Gau SY, Gautam P, Gautam RK, Gazzelloni F, Gebregergis MW, Gebrehiwot M, Gebremariam TB, Gerema U, Getachew ME, Getachew T, Gething PW, Ghafourifard M, Ghahramani S, Ghailan KY, Ghajar A, Ghanbarnia MJ, Ghasemi M, Ghasemzadeh A, Ghassemi F, Ghazy RM, Ghimire S, Gholamian A, Gholamrezanezhad A, Ghorbani Vajargah P, Ghozali G, Ghozy S, Ghuge AD, Gialluisi A, Gibson RM, Gil AU, Gill PS, Gill TK, Gillum RF, Ginindza TG, Girmay A, Glasbey JC, Gnedovskaya EV, Göbölös L, Goel A, Goldust M, Golechha M, Goleij P, Golestanfar A, Golinelli D, Gona PN, Goudarzi H, Goudarzian AH, Goyal A, Greenhalgh S, Grivna M, Guarducci G, Gubari MIM, Gudeta MD, Guha A, Guicciardi S, Gunawardane DA, Gunturu S, Guo C, Gupta AK, Gupta B, Gupta IR, Gupta RD, Gupta S, Gupta VB, Gupta VK, Gupta VK, Gutiérrez RA, Habibzadeh F, Habibzadeh P, Hachinski V, Haddadi M, Haddadi R, Haep N, Hajj Ali A, Halboub ES, Halim SA, Hall BJ, Haller S, Halwani R, Hamadeh RR, Hamagharib Abdullah K, Hamidi S, Hamiduzzaman M, Hammoud A, Hanifi N, Hankey GJ, Hannan MA, Haque MN, Harapan H, Haro JM, Hasaballah AI, Hasan F, Hasan I, Hasan MT, Hasani H, Hasanian M, Hasanpour- Dehkordi A, Hassan AM, Hassan A, Hassanian-Moghaddam H, Hassanipour S, Haubold J, Havmoeller RJ, Hay SI, Hbid Y, Hebert JJ, Hegazi OE, Heidari G, Heidari M, Heidari-Foroozan M, Heidari-Soureshjani R, Helfer B, Herteliu C, Hesami H, Hettiarachchi D, Heyi DZ, Hezam K, Hiraike Y, Hoffman HJ, Holla R, Horita N, Hossain MB, Hossain MM, Hossain S, Hosseini MS, Hosseinzadeh H, Hosseinzadeh M, Hostiuc M, Hostiuc S, Hsairi M, Hsieh VCR, Hu C, Huang J, Huda MN, Hugo FN, Hultström M, Hussain J, Hussain S, Hussein NR, Huy LD, Huynh HH, Hwang BF, Ibitoye SE, Idowu OO, Ijo D, Ikuta KS, Ilaghi M, Ilesanmi OS, Ilic IM, Ilic MD, Immurana M, Inbaraj LR, Iradukunda A, Iravanpour F, Iregbu KC, Islam MR, Islam MM, Islam SMS, Islami F, Ismail NE, Isola G, Iwagami M, Iwu CCD, Iwu-Jaja CJ, Iyer M, J LM, Jaafari J, Jacob L, Jacobsen KH, Jadidi-Niaragh F, Jafarinia M, Jaggi K, Jahankhani K, Jahanmehr N, Jahrami H, Jain A, Jain N, Jairoun AA, Jakovljevic M, Jalilzadeh Yengejeh R, Jamshidi E, Jani CT, Janko MM, Jatau AI, Jayapal SK, Jayaram S, Jeganathan J, Jema AT, Jemere DM, Jeong W, Jha AK, Jha RP, Ji JS, Jiang H, Jin Y, Jin Y, Johnson O, Jomehzadeh N, Jones DP, Joo T, Joseph A, Joseph N, Joshua CE, Jozwiak JJ, Jürisson M, Kaambwa B, Kabir A, Kabir H, Kabir Z, Kadashetti V, Kahe F, Kakodkar PV, Kalani R, Kalankesh LR, Kaliyadan F, Kalra S, Kamath A, Kamireddy A, Kanagasabai T, Kandel H, Kanmiki EW, Kanmodi KK, Kantar RS, Kapoor N, Karajizadeh M, Karami Matin B, Karanth SD, Karaye IM, Karim A, Karimi H, Karimi SE, Karimi Behnagh A, Karkhah S, Karna AK, Kashoo FZ, Kasraei H, Kassaw NA, Kassebaum NJ, Kassel MB, Katamreddy A, Katikireddi SV, Katoto PDMC, Kauppila JH, Kaur N, Kaydi N, Kayibanda JF, Kayode GA, Kazemi F, Kazemian S, Kazeminia S, Keikavoosi-Arani L, Keller C, Kempen JH, Kerr JA, Kesse-Guyot E, Keykhaei M, Khadembashiri MM, Khadembashiri MA, Khafaie MA, Khajuria H, Khalafi M, Khalaji A, Khalid N, Khalil IA, Khamesipour F, Khan A, Khan G, Khan I, Khan IA, Khan M, Khan MAB, Khan T, Khan suheb MZ, Khanmohammadi S, Khatab K, Khatami F, Khavandegar A, Khayat Kashani HR, Kheirallah KA, Khidri FF, Khodadoust E, Khormali M, Khosrowjerdi M, Khubchandani J, Khusun H, Kifle ZD, Kim G, Kim J, Kimokoti RW, Kinzel KE, Kiross GT, Kisa A, Kisa S, Kiss JB, Kivimäki M, Klu D, Knudsen AKS, Kolahi AA, Kompani F, Koren G, Kosen S, Kostev K, Kotnis AL, Koul PA, Koulmane Laxminarayana SL, Koyanagi A, Kravchenko MA, Krishan K, Krishna H, Krishnamoorthy V, Krishnamoorthy Y, Krohn KJ, Kuate Defo B, Kubeisy CM, Kucuk Bicer B, Kuddus MA, Kuddus M, Kuitunen I, Kujan O, Kulimbet M, Kulkarni V, Kumar A, Kumar H, Kumar N, Kumar R, Kumar S, Kumari M, Kurmanova A, Kurmi OP, Kusnali A, Kusuma D, Kutluk T, Kuttikkattu A, Kyei EF, Kyriopoulos I, La Vecchia C, Ladan MA, Laflamme L, Lahariya C, Lahmar A, Lai DTC, Laksono T, Lal DK, Lalloo R, Lallukka T, Lám J, Lamnisos D, Lan T, Lanfranchi F, Langguth B, Lansingh VC, Laplante-Lévesque A, Larijani B, Larsson AO, Lasrado S, Latief K, Latif M, Latifinaibin K, Lauriola P, Le LKD, Le NHH, Le TTT, Le TDT, Lee M, Lee PH, Lee SW, Lee SW, Lee WC, Lee YH, Legesse SM, Leigh J, Lenzi J, Leong E, Lerango TL, Li MC, Li W, Li X, Li Y, Li Z, Libra M, Ligade VS, Likaka ATM, Lim LL, Lin RT, Lin S, Lioutas VA, Listl S, Liu J, Liu S, Liu X, Livingstone KM, Llanaj E, Lo CH, Loreche AM, Lorenzovici L, Lotfi M, Lotfizadeh M, Lozano R, Lubinda J, Lucchetti G, Lugo A, Lunevicius R, Ma J, Ma S, Ma ZF, Mabrok M, Machairas N, Machoy M, Madsen C, Magaña Gómez JA, Maghazachi AA, Maharaj SB, Maharjan P, Mahjoub S, Mahmoud MA, Mahmoudi E, Mahmoudi M, Makram OM, Malagón-Rojas JN, Malakan Rad E, Malekzadeh R, Malhotra AK, Malhotra K, Malik AA, Malik I, Malinga LA, Malta DC, Mamun AA, Manla Y, Mannan F, Mansoori Y, Mansour A, Mansouri V, Mansournia MA, Mantovani LG, Marasini BP, Marateb HR, Maravilla JC, Marconi AM, Mardi P, Marino M, Marjani A, Marrugo Arnedo CA, Martinez-Guerra BA, Martinez-Piedra R, Martins CA, Martins-Melo FR, Martorell M, Marx W, Maryam S, Marzo RR, Mate KKV, Matei CN, Mathioudakis AG, Maude RJ, Maugeri A, May EA, Mayeli M, Mazaheri M, Mazidi M, Mazzotti A, McAlinden C, McGrath JJ, McKee M, McKowen ALW, McLaughlin SA, McPhail MA, McPhail SM, Mechili EA, Mediratta RP, Meena JK, Mehari M, Mehlman ML, Mehra R, Mehrabani-Zeinabad K, Mehrabi Nasab E, Mehrotra R, Mekonnen MM, Mendoza W, Menezes RG, Mengesha EW, Mensah GA, Mensah LG, Mentis AFA, Meo SA, Meretoja A, Meretoja TJ, Mersha AM, Mesfin BA, Mestrovic T, Mhlanga A, Mhlanga L, Mi T, Micha G, Michalek IM, Miller TR, Mindlin SN, Minelli G, Minh LHN, Mini GK, Minja NW, Mirdamadi N, Mirghafourvand M, Mirica A, Mirinezhad SK, Mirmosayyeb O, Mirutse MK, Mirza-Aghazadeh-Attari M, Mirzaei M, Misgana T, Misra S, Mitchell PB, Mithra P, Mittal C, Mittal M, Moazen B, Mohamed AI, Mohamed J, Mohamed MFH, Mohamed NS, Mohammad-Alizadeh-Charandabi S, Mohammadi S, Mohammadian-Hafshejani A, Mohammad-pour S, Mohammadshahi M, Mohammed M, Mohammed S, Mohammed S, Mojiri-forushani H, Mokdad AH, Mokhtarzadehazar P, Momenzadeh K, Momtazmanesh S, Monasta L, Moni MA, Montazeri F, Moodi Ghalibaf A, Moradi M, Moradi Y, Moradi-Lakeh M, Moradinazar M, Moradpour F, Moraga P, Morawska L, Moreira RS, Morovatdar N, Morrison SD, Morze J, Mosaddeghi Heris R, Mosser JF, Mossialos E, Mostafavi H, Mostofinejad A, Mougin V, Mouodi S, Mousavi P, Mousavi SE, Mousavi Khaneghah A, Mpundu-Kaambwa C, Mrejen M, Mubarik S, Muccioli L, Mueller UO, Mughal F, Mukherjee S, Mukoro GD, Mulita A, Mulita F, Muniyandi M, Munjal K, Musaigwa F, Musallam KM, Mustafa G, Muthu S, Muthupandian S, Myung W, Nabhan AF, Nafukho FM, Nagarajan AJ, Naghavi M, Naghavi P, Naik GR, Naik G, Naimzada MD, Nair S, Nair TS, Najmuldeen HHR, Naldi L, Nangia V, Nargus S, Nascimento BR, Nascimento GG, Naser AY, Nasiri MJ, Natto ZS, Nauman J, Naveed M, Nayak BP, Nayak VC, Nayyar AK, Nazri-Panjaki A, Negash H, Negero AK, Negoi I, Negoi RI, Negru SM, Nejadghaderi SA, Nejjari C, Nematollahi MH, Nena E, Nepal S, Nesbit OD, Newton CRJ, Ngunjiri JW, Nguyen DH, Nguyen PT, Nguyen PT, Nguyen TT, Nguyen VT, Nigatu YT, Nikolouzakis TK, Nikoobar A, Nikpoor AR, Nizam MA, Nomura S, Noreen M, Noroozi N, Norouzian Baghani A, Norrving B, Noubiap JJ, Novotney A, Nri-Ezedi CA, Ntaios G, Ntsekhe M, Nuñez-Samudio V, Nurrika D, Oancea B, Obamiro KO, Odetokun IA, Ofakunrin AOD, Ogunsakin RE, Oguta JO, Oh IH, Okati-Aliabad H, Okeke SR, Okekunle AP, Okidi L, Okonji OC, Okwute PG, Olagunju AT, Olaiya MT, Olanipekun TO, Olatubi MI, Olivas-Martinez A, Oliveira GMM, Oliver S, Olorukooba AA, Olufadewa II, Olusanya BO, Olusanya JO, Oluwafemi YD, Oluwatunase GO, Omar HA, Omer GL, Ong S, Onwujekwe OE, Onyedibe KI, Opio JN, Ordak M, Orellana ER, Orisakwe OE, Orish VN, Orru H, Ortega-Altamirano DV, Ortiz A, Ortiz-Brizuela E, Ortiz-Prado E, Osuagwu UL, Otoiu A, Otstavnov N, Ouyahia A, Ouyang G, Owolabi MO, Oyeyemi IT, Oyeyemi OT, Ozten Y, P A MP, Padubidri JR, Pahlavikhah Varnosfaderani M, Pal PK, Palicz T, Palladino C, Palladino R, Palma-Alvarez RF, Pana A, Panahi P, Pandey A, Pandi-Perumal SR, Pando-Robles V, Pangaribuan HU, Panos GD, Pantazopoulos I, Papadopoulou P, Pardhan S, Parikh RR, Park S, Parthasarathi A, Pashaei A, Pasupula DK, Patel JR, Patel SK, Pathan AR, Patil A, Patil S, Patoulias D, Patthipati VS, Paudel U, Pawar S, Pazoki Toroudi H, Pease SA, Peden AE, Pedersini P, Peng M, Pensato U, Pepito VCF, Peprah EK, Pereira G, Pereira J, Pereira M, Peres MFP, Perianayagam A, Perico N, Petcu IR, Petermann-Rocha FE, Pezzani R, Pham HT, Phillips MR, Pierannunzio D, Pigeolet M, Pigott DM, Pilgrim T, Pinheiro M, Piradov MA, Plakkal N, Plotnikov E, Poddighe D, Pollner P, Poluru R, Pond CD, Postma MJ, Poudel GR, Poudel L, Pourali G, Pourtaheri N, Prada SI, Pradhan PMS, Prajapati VK, Prakash V, Prasad CP, Prasad M, Prashant A, Prates EJS, Purnobasuki H, Purohit BM, Puvvula J, Qaisar R, Qasim NH, Qattea I, Qian G, Quan NK, Radfar A, Radhakrishnan V, Raee P, Raeisi Shahraki H, Rafiei Alavi SN, Rafique I, Raggi A, Rahim F, Rahman MM, Rahman M, Rahman MA, Rahman T, Rahmani AM, Rahmani S, Rahnavard N, Rai P, Rajaa S, Rajabpour-Sanati A, Rajput P, Ram P, Ramadan H, Ramasamy SK, Ramazanu S, Rana J, Rana K, Ranabhat CL, Rancic N, Rani S, Ranjan S, Rao CR, Rao IR, Rao M, Rao SJ, Rasali DP, Rasella D, Rashedi S, Rashedi V, Rashid AM, Rasouli-Saravani A, Rastogi P, Rasul A, Ravangard R, Ravikumar N, Rawaf DL, Rawaf S, Rawassizadeh R, Razeghian-Jahromi I, Reddy MMRK, Redwan EMM, Rehman FU, Reiner Jr RC, Remuzzi G, Reshmi B, Resnikoff S, Reyes LF, Rezaee M, Rezaei N, Rezaei N, Rezaeian M, Riaz MA, Ribeiro AI, Ribeiro DC, Rickard J, Rios-Blancas MJ, Robinson-Oden HE, Rodrigues M, Rodriguez JAB, Roever L, Rohilla R, Rohloff P, Romadlon DS, Ronfani L, Roshandel G, Roshanzamir S, Rostamian M, Roy B, Roy P, Rubagotti E, Rumisha SF, Rwegerera GM, Rynkiewicz A, S M, S N C, S Sunnerhagen K, Saad AMA, Sabbatucci M, Saber K, Saber-Ayad MM, Sacco S, Saddik B, Saddler A, Sadee BA, Sadeghi E, Sadeghi M, Sadeghian S, Saeed U, Saeedi M, Safi S, Sagar R, Saghazadeh A, Saheb Sharif-Askari N, Sahoo SS, Sahraian MA, Sajedi SA, Sajid MR, Sakshaug JW, Salahi S, Salahi S, Salamati P, Salami AA, Salaroli LB, Saleh MA, Salehi S, Salem MR, Salem MZY, Salimi S, Samadi Kafil H, Samadzadeh S, Samara KA, Samargandy S, Samodra YL, Samuel VP, Samy AM, Sanabria J, Sanadgol N, Sanganyado E, Sanjeev RK, Sanmarchi F, Sanna F, Santri IN, Santric-Milicevic MM, Sarasmita MA, Saravanan A, Saravi B, Sarikhani Y, Sarkar C, Sarmiento-Suárez R, Sarode GS, Sarode SC, Sarveazad A, Sathian B, Sathish T, Sattin D, Saulam J, Sawyer SM, Saxena S, Saya GK, Sayadi Y, Sayeed A, Sayeed MA, Saylan M, Scarmeas N, Schaarschmidt BM, Schlee W, Schmidt MI, Schuermans A, Schwebel DC, Schwendicke F, Šekerija M, Selvaraj S, Semreen MH, Senapati S, Sengupta P, Senthilkumaran S, Sepanlou SG, Serban D, Sertsu A, Sethi Y, SeyedAlinaghi S, Seyedi SA, Shafaat A, Shafaat O, Shafie M, Shafiee A, Shah NS, Shah PA, Shahabi S, Shahbandi A, Shahid I, Shahid S, Shahid W, Shahwan MJ, Shaikh MA, Shakeri A, Shakil H, Sham S, Shamim MA, Shams-Beyranvand M, Shamshad H, Shamshirgaran MA, Shamsi MA, Shanawaz M, Shankar A, Sharfaei S, Sharifan A, Shariff M, Sharifi-Rad J, Sharma M, Sharma R, Sharma S, Sharma V, Shastry RP, Shavandi A, Shaw DH, Shayan AM, Shehabeldine AME, Sheikh A, Sheikhi RA, Shen J, Shenoy MM, Shetty BSK, Shetty RS, Shey RA, Shiani A, Shibuya K, Shiferaw D, Shigematsu M, Shin JI, Shin MJ, Shiri R, Shirkoohi R, Shittu A, Shiue I, Shivakumar KM, Shivarov V, Shool S, Shrestha S, Shuja KH, Shuval K, Si Y, Sibhat MM, Siddig EE, Sigfusdottir ID, Silva JP, Silva LMLR, Silva S, Simões JP, Simpson CR, Singal A, Singh A, Singh A, Singh A, Singh BB, Singh B, Singh M, Singh M, Singh NP, Singh P, Singh S, Siraj MS, Sitas F, Sivakumar S, Skryabin VY, Skryabina AA, Sleet DA, Slepak ELN, Sohrabi H, Soleimani H, Soliman SSM, Solmi M, Solomon Y, Song Y, Sorensen RJD, Soriano JB, Soyiri IN, Spartalis M, Sreeramareddy CT, Starnes JR, Starodubov VI, Starodubova AV, Stefan SC, Stein DJ, Steinbeis F, Steiropoulos P, Stockfelt L, Stokes MA, Stortecky S, Stranges S, Stroumpoulis K, Suleman M, Suliankatchi Abdulkader R, Sultana A, Sun J, Sunkersing D, Susanty S, Swain CK, Sykes BL, Szarpak L, Szeto MD, Szócska M, Tabaee Damavandi P, Tabatabaei Malazy O, Tabatabaeizadeh SA, Tabatabai S, Tabb KM, Tabish M, Taborda-Barata LM, Tabuchi T, Tadesse BT, Taheri A, Taheri Abkenar Y, Taheri Soodejani M, Taherkhani A, Taiba J, Tajbakhsh A, Talaat IM, Talukder A, Tamuzi JL, Tan KK, Tang H, Tang HK, Tat NY, Tat VY, Tavakoli Oliaee R, Tavangar SM, Taveira N, Tebeje TM, Tefera YM, Teimoori M, Temsah MH, Temsah RMH, Teramoto M, Tesfaye SH, Thangaraju P, Thankappan KR, Thapa R, Thapar R, Thomas N, Thrift AG, Thum CCC, Tian J, Tichopad A, Ticoalu JHV, Tiruye TY, Tohidast SA, Tonelli M, Touvier M, Tovani-Palone MR, Tram KH, Tran NM, Trico D, Trihandini I, Tromans SJ, Truong VT, Truyen TTTT, Tsermpini EE, Tumurkhuu M, Tung K, Tyrovolas S, Ubah CS, Udoakang AJ, Udoh A, Ulhaq I, Ullah S, Ullah S, Umair M, Umar TP, Umeokonkwo CD, Umesh A, Unim B, Unnikrishnan B, Upadhyay E, Urso D, Vacante M, Vahdani AM, Vaithinathan AG, Valadan Tahbaz S, Valizadeh R, Van den Eynde J, Varavikova E, Varga O, Varma SA, Vart P, Varthya SB, Vasankari TJ, Veerman LJ, Venketasubramanian N, Venugopal D, Verghese NA, Verma M, Verma P, Veroux M, Verras GI, Vervoort D, Vieira RJ, Villafañe JH, Villani L, Villanueva GI, Villeneuve PJ, Violante FS, Visontay R, Vlassov V, Vo B, Vollset SE, Volovat SR, Volovici V, Vongpradith A, Vos T, Vujcic IS, Vukovic R, Wado YD, Wafa HA, Waheed Y, Wamai RG, Wang C, Wang D, Wang F, Wang S, Wang S, Wang Y, Wang YP, Ward P, Watson S, Weaver MR, Weerakoon KG, Weiss DJ, Weldemariam AH, Wells KM, Wen YF, Werdecker A, Westerman R, Wickramasinghe DP, Wickramasinghe ND, Wijeratne T, Wilson S, Wojewodzic MW, Wool EE, Woolf AD, Wu D, Wulandari RD, Xiao H, Xu B, Xu X, Yadav L, Yaghoubi S, Yang L, Yano Y, Yao Y, Ye P, Yesera GE, Yesodharan R, Yesuf SA, Yiğit A, Yiğit V, Yip P, Yon DK, Yonemoto N, You Y, Younis MZ, Yu C, Zadey S, Zadnik V, Zafari N, Zahedi M, Zahid MN, Zahir M, Zakham F, Zaki N, Zakzuk J, Zamagni G, Zaman BA, Zaman SB, Zamora N, Zand R, Zandi M, Zandieh GGZ, Zanghì A, Zare I, Zastrozhin MS, Zeariya MGM, Zeng Y, Zhai C, Zhang C, Zhang H, Zhang H, Zhang Y, Zhang Z, Zhang Z, Zhao H, Zhao Y, Zhao Y, Zheng P, Zhong C, Zhou J, Zhu B, Zhu Z, Ziaeefar P, Zielińska M, Zou Z, Zumla A, Zweck E, Zyoud SH, Lim SS, Murray CJL. Global age-sex-specific mortality, life expectancy, and population estimates in 204 countries and territories and 811 subnational locations, 1950-2021, and the impact of the COVID-19 pandemic: a comprehensive demographic analysis for the Global Burden of Disease Study 2021. Lancet 2024; 403:1989-2056. [PMID: 38484753 PMCID: PMC11126395 DOI: 10.1016/s0140-6736(24)00476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/08/2023] [Accepted: 03/06/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Estimates of demographic metrics are crucial to assess levels and trends of population health outcomes. The profound impact of the COVID-19 pandemic on populations worldwide has underscored the need for timely estimates to understand this unprecedented event within the context of long-term population health trends. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 provides new demographic estimates for 204 countries and territories and 811 additional subnational locations from 1950 to 2021, with a particular emphasis on changes in mortality and life expectancy that occurred during the 2020-21 COVID-19 pandemic period. METHODS 22 223 data sources from vital registration, sample registration, surveys, censuses, and other sources were used to estimate mortality, with a subset of these sources used exclusively to estimate excess mortality due to the COVID-19 pandemic. 2026 data sources were used for population estimation. Additional sources were used to estimate migration; the effects of the HIV epidemic; and demographic discontinuities due to conflicts, famines, natural disasters, and pandemics, which are used as inputs for estimating mortality and population. Spatiotemporal Gaussian process regression (ST-GPR) was used to generate under-5 mortality rates, which synthesised 30 763 location-years of vital registration and sample registration data, 1365 surveys and censuses, and 80 other sources. ST-GPR was also used to estimate adult mortality (between ages 15 and 59 years) based on information from 31 642 location-years of vital registration and sample registration data, 355 surveys and censuses, and 24 other sources. Estimates of child and adult mortality rates were then used to generate life tables with a relational model life table system. For countries with large HIV epidemics, life tables were adjusted using independent estimates of HIV-specific mortality generated via an epidemiological analysis of HIV prevalence surveys, antenatal clinic serosurveillance, and other data sources. Excess mortality due to the COVID-19 pandemic in 2020 and 2021 was determined by subtracting observed all-cause mortality (adjusted for late registration and mortality anomalies) from the mortality expected in the absence of the pandemic. Expected mortality was calculated based on historical trends using an ensemble of models. In location-years where all-cause mortality data were unavailable, we estimated excess mortality rates using a regression model with covariates pertaining to the pandemic. Population size was computed using a Bayesian hierarchical cohort component model. Life expectancy was calculated using age-specific mortality rates and standard demographic methods. Uncertainty intervals (UIs) were calculated for every metric using the 25th and 975th ordered values from a 1000-draw posterior distribution. FINDINGS Global all-cause mortality followed two distinct patterns over the study period: age-standardised mortality rates declined between 1950 and 2019 (a 62·8% [95% UI 60·5-65·1] decline), and increased during the COVID-19 pandemic period (2020-21; 5·1% [0·9-9·6] increase). In contrast with the overall reverse in mortality trends during the pandemic period, child mortality continued to decline, with 4·66 million (3·98-5·50) global deaths in children younger than 5 years in 2021 compared with 5·21 million (4·50-6·01) in 2019. An estimated 131 million (126-137) people died globally from all causes in 2020 and 2021 combined, of which 15·9 million (14·7-17·2) were due to the COVID-19 pandemic (measured by excess mortality, which includes deaths directly due to SARS-CoV-2 infection and those indirectly due to other social, economic, or behavioural changes associated with the pandemic). Excess mortality rates exceeded 150 deaths per 100 000 population during at least one year of the pandemic in 80 countries and territories, whereas 20 nations had a negative excess mortality rate in 2020 or 2021, indicating that all-cause mortality in these countries was lower during the pandemic than expected based on historical trends. Between 1950 and 2021, global life expectancy at birth increased by 22·7 years (20·8-24·8), from 49·0 years (46·7-51·3) to 71·7 years (70·9-72·5). Global life expectancy at birth declined by 1·6 years (1·0-2·2) between 2019 and 2021, reversing historical trends. An increase in life expectancy was only observed in 32 (15·7%) of 204 countries and territories between 2019 and 2021. The global population reached 7·89 billion (7·67-8·13) people in 2021, by which time 56 of 204 countries and territories had peaked and subsequently populations have declined. The largest proportion of population growth between 2020 and 2021 was in sub-Saharan Africa (39·5% [28·4-52·7]) and south Asia (26·3% [9·0-44·7]). From 2000 to 2021, the ratio of the population aged 65 years and older to the population aged younger than 15 years increased in 188 (92·2%) of 204 nations. INTERPRETATION Global adult mortality rates markedly increased during the COVID-19 pandemic in 2020 and 2021, reversing past decreasing trends, while child mortality rates continued to decline, albeit more slowly than in earlier years. Although COVID-19 had a substantial impact on many demographic indicators during the first 2 years of the pandemic, overall global health progress over the 72 years evaluated has been profound, with considerable improvements in mortality and life expectancy. Additionally, we observed a deceleration of global population growth since 2017, despite steady or increasing growth in lower-income countries, combined with a continued global shift of population age structures towards older ages. These demographic changes will likely present future challenges to health systems, economies, and societies. The comprehensive demographic estimates reported here will enable researchers, policy makers, health practitioners, and other key stakeholders to better understand and address the profound changes that have occurred in the global health landscape following the first 2 years of the COVID-19 pandemic, and longer-term trends beyond the pandemic. FUNDING Bill & Melinda Gates Foundation.
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Mengistu B, Liyew EF, Chernet M, Tasew G, Gomez SR, Maddren R, Collyer B, Anjulo U, Tamiru A, Forbes K, Mehari Z, Deribe K, Yadeta T, Salasibew M, Tollera G, Anderson R. Correction: Progress in controlling the transmission of schistosome parasites in Southern Ethiopia: the Geshiyaro Project in the Wolaita Zone. Parasit Vectors 2024; 17:158. [PMID: 38549079 PMCID: PMC10979624 DOI: 10.1186/s13071-024-06251-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024] Open
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Mengsitu B, Liyew EF, Chernet M, Tasew G, Gomez SR, Maddren R, Collyer B, Anjulo U, Tamiru A, Forbes K, Mehari Z, Deribe K, Yadeta T, Salasibew M, Tollera G, Anderson R. Progress in controlling the transmission of schistosome parasites in Southern Ethiopia: the Geshiyaro Project in the Wolaita Zone. Parasit Vectors 2024; 17:113. [PMID: 38448997 PMCID: PMC10919034 DOI: 10.1186/s13071-024-06156-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/22/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND This paper describes changes in the prevalence and intensity of schistosome parasite infections in a project integrating mass drug administration (MDA), water, sanitation, and hygiene (WaSH), and behavioral change interventions. METHODS The Geshiyaro Project comprises three intervention arms. Arm 1 is subdivided into "Arm 1 pilot" (one district) and Arm 1 (four other districts), both receiving integrated community-wide MDA with intensive WaSH interventions. Arm 2 involves 17 districts with community-wide MDA interventions, while Arm 3 serves as a control with school-based MDA interventions in three districts. A total of 150 individuals, stratified by age group, were randomly selected from each of the 45 sentinel sites. Arm sizes were 584 (Arm 1 pilot), 1636 (Arm 1), 2203 (Arm 2), and 2238 (Arm 3). Statistical tests were employed to compare infection prevalence and intensity across the different arms. RESULTS The prevalence of schistosome parasite infection ranged from 0% to 2.6% and from 1.7% to 25.7% across districts, employing the Kato-Katz (KK) and point-of-care circulating cathodic antigen (POC-CCA) diagnostics, respectively. The mean infection intensity level showed no marked difference between baseline and follow-up surveys when measured by KK, except in Arm 2 (t = 6.89, P < 0.0001). Infection prevalence decreased significantly in Arm 1 (t = 8.62, P < 0.0001), Arm 2 (t = 6.94, P < 0.0001), and Arm 3 (t = 8.83, P < 0.0001), but not in Arm 1 pilot (t = 1.69, P = 0.09) by POC-CCA, when trace was considered positive. The decrease was significant only in Arm 1 (t = 3.28, P = 0.0001) and Arm 2 (t = 7.62, P < 0.0001) when the trace was considered negative in POC-CCA. Arm 2 demonstrated a significant difference in difference (DID) compared to the control group, Arm 3, regardless of whether trace in POC-CCA was considered positive (DID = 3.9%, df = 8780, P = 0.025) or negative (DID = -5.2, df = 8780, P = 0.0004). CONCLUSIONS The prevalence of schistosomiasis was low when employing the KK diagnostic but moderate in some locations by the POC-CCA diagnostic. The infection level had decreased across all arms of the Geshiyaro study at mid-term of the 7-year project, but further efforts are needed to reduce the rate of parasite transmission based on the POC-CCA diagnostic scores.
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Itaye T, Matendechero SH, Mbonigaba JB, Gebretsadik FS, Molefi TL, Baayenda G, Ruberanziza E, Kollie KK, Zilabumba J, Dembele M, Deribe K, Adrien EM, Polo MR. "Our interventions are still here to support communities during the pandemic": Resuming mass drug administration for neglected tropical diseases after COVID-19 implementation delays. PLoS Negl Trop Dis 2023; 17:e0011368. [PMID: 37363911 PMCID: PMC10328222 DOI: 10.1371/journal.pntd.0011368] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 07/07/2023] [Accepted: 05/09/2023] [Indexed: 06/28/2023] Open
Abstract
The COVID-19 pandemic disrupted essential health services, including those provided by national neglected tropical disease (NTD) programs. Most mass drug administration (MDA) programs were postponed for 6-12 months following World Health Organization guidance released in April 2020 to temporarily halt NTD programs and launch necessary COVID-19 precautions. While NTD-endemic countries have since resumed MDA activities, it is critical to understand implementers' perspectives on the key challenges and opportunities for program relaunch, as these insights are critical for maximizing gains towards disease control and elimination during public health emergencies. Using data from using online surveys and focus group discussions, this mixed-methods study sought perspectives from Ministry of Health NTD Program Managers and implementing partners from non-governmental organizations working in sub-Saharan Africa. Data analysis revealed that findings converged around several main themes: disruptions for MDA programs included resource shortages due to prioritization of pandemic response, challenges adhering to COVID-19 safety protocols, and community hesitancy due to coronavirus transmission fears. Identified solutions for restarting MDA programs focused on adapting intervention delivery and packaging to minimize disease transmission, embracing technology to optimize intervention planning and delivery, and identifying opportunities to promote program integration between pandemic response strategies and NTD campaign delivery. Findings identifies key challenges due to disruptions to NTD program delivery and provide strategic recommendations for endemic countries to build resilient programs that can continue to perform during and beyond global pandemics.
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Ekanya R, Beng AA, Anim MA, Pangwoh YZ, Dibando OE, Gandjui NVT, Awah AR, Amambo GN, Nchanji GT, Ndzeshang BL, Nji TM, Fombad FF, Njouendou AJ, Eyong EM, Cho JF, Eyong PA, Deribe K, Ngum NH, Golden A, Wanji S. Concordance between Ov16 Rapid Diagnostic Test(RDT) and Ov16 Enzyme-Linked Immunosorbent Assay (ELISA) for the Diagnosis of Onchocerciasis in Areas of Contrasting Endemicity in Cameroon. Parasite Epidemiol Control 2023; 21:e00290. [PMID: 36875175 PMCID: PMC7614264 DOI: 10.1016/j.parepi.2023.e00290] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
The diagnosis of onchocerciasis in endemic areas has been demanding given the need to replace the invasive skin snip method with a more sensitive and specific rapid point-of-contact tool. Filarial antigen detection tests are better alternative methods in diagnosing Onchocercal infections, as they detect infections and could be used to monitor transmission in endemic areas following mass drug administration. With the shift in paradigme from control to elimination, a rapid point- of-contact tool is required to support elimination programs. This was a cross-sectional, community-based study conducted in 50 villages selected from six health districts using a systematic sampling technique. Individuals ≥17 years who had lived in the community for a duration of 5 years and above provided blood specimens for IgG4 antibodies testing against O. volvulus antigens. Data were analyzed using SPSS v.20 and expectation maximization to classify optical densities for positive and negative samples from ELISA results. The kappa statistics was used to measure the level of agreement between the two tests. In a total of 5001 participants which were recruited for the study, 4416 (88.3 %) participant samples passed the plate quality control criteria and were considered for the test comparison analysis. Out of the 4416 participants, 292 (6.6 %) tested positive with Ov16 RDT and 310 (7.0 %) with Ov16 ELISA. All those who tested positive with the rapid test agreed positive with ELISA. The overall percentage agreement was 99.2 %, the Kappa score of 0.936. The results obtained indicate an excellent agreement between ELISA and RDT as measured by kappa (0.936) which was statistically significant (P<0.001). Our experience with the Ov16 ELISA biplex rapid test was favorable. However, the Ov16 RDT test may be more appropriate to use in remote areas for the point diagnosis of onchocerciasis in view towards achieving elimination in Africa.
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Deribe K, Sultani HM, Okoyo C, Omondi WP, Ngere I, Newport MJ, Cano J. Geostatistical modelling of the distribution, risk and burden of podoconiosis in Kenya. Trans R Soc Trop Med Hyg 2023; 117:72-82. [PMID: 36130407 PMCID: PMC9890307 DOI: 10.1093/trstmh/trac092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/27/2022] [Accepted: 09/02/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Understanding and accurately predicting the environmental limits, population at risk and burden of podoconiosis are critical for delivering targeted and equitable prevention and treatment services, planning control and elimination programs and implementing tailored case finding and surveillance activities. METHODS This is secondary analysis of a nationwide podoconiosis mapping survey in Kenya. We combined national representative prevalence survey data of podoconiosis with climate and environmental data, overlayed with population figures in a geostatistical modelling framework, to predict the environmental suitability, population living in at-risk areas and number of cases of podoconiosis in Kenya. RESULTS In 2020, the number of people living with podoconiosis in Kenya was estimated to be 9344 (95% uncertainty interval 4222 to 17 962). The distribution of podoconiosis varies by geography and three regions (Eastern, Nyanza and Western) represent >90% of the absolute number of cases. High environmental suitability for podoconiosis was predicted in four regions of Kenya (Coastal, Eastern, Nyanza and Western). In total, 2.2 million people live in at-risk areas and 4.2% of the total landmass of Kenya is environmentally predisposed for podoconiosis. CONCLUSIONS The burden of podoconiosis is relatively low in Kenya and is mostly restricted to certain small geographical areas. Our results will help guide targeted prevention and treatment approaches through local planning, spatial targeting and tailored surveillance activities.
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Amambo GN, Innocentia N, Abong RA, Fombad FF, Njouendou AJ, Nietcho F, Ekanya R, Kien CA, Ebai R, Lenz B, Ritter M, Esum ME, Deribe K, Cho JF, Beng AA, Enyong PI, Li Z, Hübner MP, Pfarr K, Hoerauf A, Carlow C, Wanji S. Application of loop mediated isothermal amplification (LAMP) assays for the detection of Onchocerca volvulus, Loa loa and Mansonella perstans in humans and vectors. FRONTIERS IN TROPICAL DISEASES 2023; 3:1016176. [PMID: 36684508 PMCID: PMC7614089 DOI: 10.3389/fitd.2022.1016176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Conventional diagnosis of filarial infections is based on morphological identification of microfilariae using light microscopy and requires considerable expertise, is time-consuming, and can be subjective. Loop-mediated isothermal amplification (LAMP) has advantages over microscopy or PCR because of its operational simplicity, rapidity and versatility of readout options. LAMP assays represent a major step forward in improved filarial diagnostic tools suitable for low resource settings and field applicability. The study goal was to retrospectively evaluate the performance and suitability of the O-150, RF4, and Mp419 LAMP assays for diagnosing Onchocerca volvulus, Loa loa and Mansonella perstans infections, respectively, in humans and vectors under experimental and natural field conditions. Surveys were conducted in four health districts of Cameroon using skin snip and thick blood film methods to detect skin (O. volvulus) and blood (L. loa and M. perstans) dwelling microfilaria in humans. Engorged vectors (Simulium spp., Chrysops spp., and Culicoides spp.) were evaluated by LAMP. Dissected, wild-caught vectors were also analyzed. LAMP showed a prevalence of 40.4% (O. volvulus), 17.8% (L. loa) and 36.6% (M. perstans) versus 20.6% (O. volvulus), 17.4% (L. loa) and 33.8% (M. perstans) with microscopy. Simulium spp. were dissected for microscopy and pooled for LAMP. The O-150 LAMP assay infection rate was 4.3% versus 4.1% by microscopy. Chrysops spp. were dissected and analyzed individually in the LAMP assay. The RF4 LAMP assay infection rate was 23.5% versus 3.3% with microscopy. The RF4 LAMP assay also detected parasites in Chrysops spp. fed on low microfilaremic volunteers. The Mp419 LAMP assay infection rate was 0.2% for C. milnei and 0.04% for C. grahamii, while three other species were LAMP-negative. The sensitivity, species specificity, rapidity and ease of its use of these filarial LAMP assays, and validation of their performance in the field support use as alternatives to microscopy as diagnostic and surveillance tools in global health programs aimed to eliminate onchocerciasis.
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Haeuser E, Serfes AL, Cork MA, Yang M, Abbastabar H, Abhilash ES, Adabi M, Adebayo OM, Adekanmbi V, Adeyinka DA, Afzal S, Ahinkorah BO, Ahmadi K, Ahmed MB, Akalu Y, Akinyemi RO, Akunna CJ, Alahdab F, Alanezi FM, Alanzi TM, Alene KA, Alhassan RK, Alipour V, Almasi-Hashiani A, Alvis-Guzman N, Ameyaw EK, Amini S, Amugsi DA, Ancuceanu R, Anvari D, Appiah SCY, Arabloo J, Aremu O, Asemahagn MA, Jafarabadi MA, Awedew AF, Quintanilla BPA, Ayanore MA, Aynalem YA, Azari S, Azene ZN, Darshan BB, Babalola TK, Baig AA, Banach M, Bärnighausen TW, Bell AW, Bhagavathula AS, Bhardwaj N, Bhardwaj P, Bhattacharyya K, Bijani A, Bitew ZW, Bohlouli S, Bolarinwa OA, Boloor A, Bozicevic I, Butt ZA, Cárdenas R, Carvalho F, Charan J, Chattu VK, Chowdhury MAK, Chu DT, Cowden RG, Dahlawi SMA, Damiani G, Darteh EKM, Darwesh AM, das Neves J, Weaver ND, De Leo D, De Neve JW, Deribe K, Deuba K, Dharmaratne S, Dianatinasab M, Diaz D, Didarloo A, Djalalinia S, Dorostkar F, Dubljanin E, Duko B, El Tantawi M, El-Jaafary SI, Eshrati B, Eskandarieh S, Eyawo O, Ezeonwumelu IJ, Ezzikouri S, Farzadfar F, Fattahi N, Fauk NK, Fernandes E, Filip I, Fischer F, Foigt NA, Foroutan M, Fukumoto T, Gad MM, Gaidhane AM, Gebregiorgis BG, Gebremedhin KB, Getacher L, Ghadiri K, Ghashghaee A, Golechha M, Gubari MIM, Gugnani HC, Guimarães RA, Haider MR, Haj-Mirzaian A, Hamidi S, Hashi A, Hassanipour S, Hassankhani H, Hayat K, Herteliu C, Ho HC, Holla R, Hosseini M, Hosseinzadeh M, Hwang BF, Ibitoye SE, Ilesanmi OS, Ilic IM, Ilic MD, Islam RM, Iwu CCD, Jakovljevic M, Jha RP, Ji JS, Johnson KB, Joseph N, Joshua V, Joukar F, Jozwiak JJ, Kalankesh LR, Kalhor R, Kamyari N, Kanchan T, Matin BK, Karimi SE, Kayode GA, Karyani AK, Keramati M, Khan EA, Khan G, Khan MN, Khatab K, Khubchandani J, Kim YJ, Kisa A, Kisa S, Kopec JA, Kosen S, Laxminarayana SLK, Koyanagi A, Krishan K, Defo BK, Kugbey N, Kulkarni V, Kumar M, Kumar N, Kusuma D, La Vecchia C, Lal DK, Landires I, Larson HJ, Lasrado S, Lee PH, Li S, Liu X, Maleki A, Malik P, Mansournia MA, Martins-Melo FR, Mendoza W, Menezes RG, Mengesha EW, Meretoja TJ, Mestrovic T, Mirica A, Moazen B, Mohamad O, Mohammad Y, Mohammadian-Hafshejani A, Mohammadpourhodki R, Mohammed S, Mohammed S, Mokdad AH, Moradi M, Moraga P, Mubarik S, Mulu GBB, Mwanri L, Nagarajan AJ, Naimzada MD, Naveed M, Nazari J, Ndejjo R, Negoi I, Ngalesoni FN, Nguefack-Tsague G, Ngunjiri JW, Nguyen CT, Nguyen HLT, Nnaji CA, Noubiap JJ, Nuñez-Samudio V, Nwatah VE, Oancea B, Odukoya OO, Olagunju AT, Olakunde BO, Olusanya BO, Olusanya JO, Bali AO, Onwujekwe OE, Orisakwe OE, Otstavnov N, Otstavnov SS, Owolabi MO, Mahesh PA, Padubidri JR, Pana A, Pandey A, Pandi-Perumal SR, Kan FP, Patton GC, Pawar S, Peprah EK, Postma MJ, Preotescu L, Syed ZQ, Rabiee N, Radfar A, Rafiei A, Rahim F, Rahimi-Movaghar V, Rahmani AM, Ramezanzadeh K, Rana J, Ranabhat CL, Rao SJ, Rawaf DL, Rawaf S, Rawassizadeh R, Regassa LD, Rezaei N, Rezapour A, Riaz MA, Ribeiro AI, Ross JM, Rubagotti E, Rumisha SF, Rwegerera GM, Moghaddam SS, Sagar R, Sahiledengle B, Sahu M, Salem MR, Kafil HS, Samy AM, Sartorius B, Sathian B, Seidu AA, Shaheen AA, Shaikh MA, Shamsizadeh M, Shiferaw WS, Shin JI, Shrestha R, Singh JA, Skryabin VY, Skryabina AA, Soltani S, Sufiyan MB, Tabuchi T, Tadesse EG, Taveira N, Tesfay FH, Thapar R, Tovani-Palone MR, Tsegaye GW, Umeokonkwo CD, Unnikrishnan B, Villafañe JH, Violante FS, Vo B, Vu GT, Wado YD, Waheed Y, Wamai RG, Wang Y, Ward P, Wickramasinghe ND, Wilson K, Yaya S, Yip P, Yonemoto N, Yu C, Zastrozhin MS, Zhang Y, Zhang ZJ, Hay SI, Dwyer-Lindgren L. Mapping age- and sex-specific HIV prevalence in adults in sub-Saharan Africa, 2000-2018. BMC Med 2022; 20:488. [PMID: 36529768 PMCID: PMC9760541 DOI: 10.1186/s12916-022-02639-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 10/26/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus and acquired immune deficiency syndrome (HIV/AIDS) is still among the leading causes of disease burden and mortality in sub-Saharan Africa (SSA), and the world is not on track to meet targets set for ending the epidemic by the Joint United Nations Programme on HIV/AIDS (UNAIDS) and the United Nations Sustainable Development Goals (SDGs). Precise HIV burden information is critical for effective geographic and epidemiological targeting of prevention and treatment interventions. Age- and sex-specific HIV prevalence estimates are widely available at the national level, and region-wide local estimates were recently published for adults overall. We add further dimensionality to previous analyses by estimating HIV prevalence at local scales, stratified into sex-specific 5-year age groups for adults ages 15-59 years across SSA. METHODS We analyzed data from 91 seroprevalence surveys and sentinel surveillance among antenatal care clinic (ANC) attendees using model-based geostatistical methods to produce estimates of HIV prevalence across 43 countries in SSA, from years 2000 to 2018, at a 5 × 5-km resolution and presented among second administrative level (typically districts or counties) units. RESULTS We found substantial variation in HIV prevalence across localities, ages, and sexes that have been masked in earlier analyses. Within-country variation in prevalence in 2018 was a median 3.5 times greater across ages and sexes, compared to for all adults combined. We note large within-district prevalence differences between age groups: for men, 50% of districts displayed at least a 14-fold difference between age groups with the highest and lowest prevalence, and at least a 9-fold difference for women. Prevalence trends also varied over time; between 2000 and 2018, 70% of all districts saw a reduction in prevalence greater than five percentage points in at least one sex and age group. Meanwhile, over 30% of all districts saw at least a five percentage point prevalence increase in one or more sex and age group. CONCLUSIONS As the HIV epidemic persists and evolves in SSA, geographic and demographic shifts in prevention and treatment efforts are necessary. These estimates offer epidemiologically informative detail to better guide more targeted interventions, vital for combating HIV in SSA.
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Hassan R, Cano J, Fronterre C, Bakhiet S, Fahal A, Deribe K, Newport M. Estimating the burden of mycetoma in Sudan for the period 1991-2018 using a model-based geostatistical approach. PLoS Negl Trop Dis 2022; 16:e0010795. [PMID: 36240229 PMCID: PMC9604875 DOI: 10.1371/journal.pntd.0010795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/26/2022] [Accepted: 09/06/2022] [Indexed: 11/26/2022] Open
Abstract
Mycetoma is widespread in tropical and subtropical regions favouring arid areas with low humidity and a short rainy season. Sudan is one of the highly endemic countries for mycetoma. Estimating the population at risk and the number of cases is critical for delivering targeted and equitable prevention and treatment services. In this study, we have combined a large dataset of mycetoma cases recorded by the Mycetoma Research Centre (MRC) in Sudan over 28 years (1991-2018) with a collection of environmental and water and hygiene-related datasets in a geostatistical framework to produce estimates of the disease burden across the country. We developed geostatistical models to predict the number of cases of actinomycetoma and eumycetoma in areas considered environmentally suitable for the two mycetoma forms. Then used the raster dataset (gridded map) with the population estimates for 2020 to compute the potentially affected population since 1991. The geostatistical models confirmed this heterogeneous and distinct distribution of the estimated cases of eumycetoma and actinomycetoma across Sudan. For eumycetoma, these higher-risk areas were smaller and scattered across Al Jazirah, Khartoum, White Nile and Sennar states, while for actinomycetoma a higher risk for infection is shown across the rural districts of North and West Kurdufan. Nationally, we estimated 63,825 people (95%CI: 13,693 to 197,369) to have been suffering from mycetoma since 1991 in Sudan,51,541 people (95%CI: 9,893-166,073) with eumycetoma and 12,284 people (95%CI: 3,800-31,296) with actinomycetoma. In conclusion, the risk of mycetoma in Sudan is particularly high in certain restricted areas, but cases are ubiquitous across all states. Both prevention and treatment services are required to address the burden. Such work provides a guide for future control and prevention programs for mycetoma, highly endemic areas are clearly targeted, and resources are directed to areas with high demand.
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Hounsome N, Hassan R, Bakhiet SM, Deribe K, Bremner S, Fahal AH, Newport MJ. Role of socioeconomic factors in developing mycetoma: Results from a household survey in Sennar State, Sudan. PLoS Negl Trop Dis 2022; 16:e0010817. [PMID: 36251732 PMCID: PMC9624402 DOI: 10.1371/journal.pntd.0010817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 11/01/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Mycetoma is a chronic, progressively destructive disease of subcutaneous tissues and bones caused by certain species of bacteria or fungi. We conducted a cross-sectional community-based study alongside mapping of mycetoma in five administrative units with high mycetoma endemicity in the Eastern Sennar Locality, Sennar State, Sudan. METHODS A household survey was administered which included questions about the household members, household characteristics, economic activity and history of mycetoma. A clinical examination was conducted on all members of the household. If mycetoma was suspected, an individual questionnaire was completed collecting demographic, clinical and epidemiological data as well as information on the use of health care and associated costs. Geographical coordinates and photos of the lesions were taken, and the affected persons were referred to the medical centre for confirmation of the diagnosis and treatment. We compared the characteristics of households with confirmed cases of mycetoma with those without confirmed cases, and individuals with confirmed mycetoma with those in whom mycetoma was not confirmed. RESULTS In total 7,798 households in 60 villages were surveyed; 515 suspected cases were identified and 359 cases of mycetoma were confirmed. Approximately 15% of households with mycetoma had more than one household member affected by this disease. Households with mycetoma were worse off with respect to water supply, toilet facilities, electricity and electrical appliances compared to the survey households. Only 23% of study participants with mycetoma had sought professional help. Of these, 77% of patients travelled an average of six hours to visit a medical facility. More than half of patients had to pay towards their treatment. The estimated average cost of treatment was 26,957 Sudanese pounds per year (566 US dollars, exchange rate 2018). CONCLUSIONS Results of this survey suggest that agricultural practices and reduced access to sanitation and clean water can be risk factors in developing mycetoma. Poor access to health care and substantial financial costs were barriers to seeking treatment for mycetoma.
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Hassan R, Deribe K, Simpson H, Bremner S, Elhadi O, Alnour M, Fahal AH, Newport M, Bakhiet S. Individual Risk Factors of Mycetoma Occurrence in Eastern Sennar Locality, Sennar State, Sudan: A Case-Control Study. Trop Med Infect Dis 2022; 7:tropicalmed7080174. [PMID: 36006266 PMCID: PMC9412883 DOI: 10.3390/tropicalmed7080174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Mycetoma is a serious chronic subcutaneous granulomatous inflammatory disease that is endemic in tropical and subtropical regions, where it impacts profoundly on patients, families, and communities. Individual-level risk factors for the disease are poorly understood. To address this, a case-control study was conducted based on data collected from 60 villages in Eastern Sennar Locality, Sennar State, Sudan. Based on the presence of swelling in any part of the body, or sinus formation with or without grain discharge evident from the lesion by ultrasound examination, we diagnosed 359 cases of mycetoma. For each case, we included three healthy sex-matched persons, with no evidence of mycetoma, from the same village as the control group (n = 1077). The odds for mycetoma were almost three times higher in individuals in the age group 16–30 years (Adjusted Odds Ratio (AOR) = 2.804, 95% CI = 1.424–5.523) compared to those in age group ≤ 15 years. Other factors contributing to the odds of mycetoma were history of local trauma (AOR = 1.892, 95% CI = 1.425–2.513), being unmarried (AOR = 3.179, 95% CI = 2.339–4.20) and owning livestock (AOR = 3.941, 95% CI = 2.874–5.405). In conclusion, certain factors found to be associated with mycetoma in this study could inform a high index of suspicion for mycetoma diagnosis, which would improve early case detection. Other factors found to be associated could inform the development of an interventional program for mycetoma control in Sudan, including education on healthy farming practices and the risks of puncture wounds for individuals residing in endemic areas. However, this work was conducted in one endemic state, while mycetoma cases occur in all states of Sudan. Replicating this study over a wider area would give a fuller picture of the situation, providing the control program with more comprehensive information on the risk factors for the disease.
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Misganaw A, Naghavi M, Walker A, Mirkuzie AH, Giref AZ, Berheto TM, Waktola EA, Kempen JH, Eticha GT, Wolde TK, Deguma D, Abate KH, Abegaz KH, Ahmed MB, Akalu Y, Aklilu A, Alemu BW, Asemahagn MA, Awedew AF, Balakrishnan S, Bekuma TT, Beyene AS, Beyene MG, Bezabih YM, Birhanu BT, Chichiabellu TY, Dachew BA, Dagnew AB, Demeke FM, Demissie GD, Derbew Molla M, Dereje N, Deribe K, Desta AA, Eshetu MK, Ferede TY, Gebreyohannes EA, Geremew A, Gesesew HA, Getacher L, Glenn SD, Hafebo AS, Hashi A, Hassen HY, Hay SI, Hordofa DF, Huluko DH, Kasa AS, Kassahun Azene G, Kebede EM, Kebede HK, Kelkay B, Kidane SZ, Legesse SM, Manamo WA, Melaku YAA, Mengesha EW, Mengesha SD, Merie HE, Mersha AM, Mersha AG, Mirutse MK, Mohammed AS, Mohammed H, Mohammed S, Netsere HB, Nigatu D, Obsa MS, Odo DB, Omer M, Regassa LD, Sahiledengle B, Shaka MF, Shiferaw WS, Sidemo NB, Sinke AH, Sintayehu Y, Sorrie MB, Tadesse BT, Tadesse EG, Tamir Z, Tamiru AT, Tareke AA, Tefera YG, Tekalegn Y, Tesema AK, Tesema TT, Tesfay FH, Tessema ZT, Tilahun T, Tsegaye GW, Tusa BS, Weledesemayat GT, Yazie TS, Yeshitila YG, Yirdaw BW, Zegeye DT, Murray CJL, Gebremedhin LT. Progress in health among regions of Ethiopia, 1990-2019: a subnational country analysis for the Global Burden of Disease Study 2019. Lancet 2022; 399:1322-1335. [PMID: 35294898 PMCID: PMC8987934 DOI: 10.1016/s0140-6736(21)02868-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 12/07/2021] [Accepted: 12/17/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Previous Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) studies have reported national health estimates for Ethiopia. Substantial regional variations in socioeconomic status, population, demography, and access to health care within Ethiopia require comparable estimates at the subnational level. The GBD 2019 Ethiopia subnational analysis aimed to measure the progress and disparities in health across nine regions and two chartered cities. METHODS We gathered 1057 distinct data sources for Ethiopia and all regions and cities that included census, demographic surveillance, household surveys, disease registry, health service use, disease notifications, and other data for this analysis. Using all available data sources, we estimated the Socio-demographic Index (SDI), total fertility rate (TFR), life expectancy, years of life lost, years lived with disability, disability-adjusted life-years, and risk-factor-attributable health loss with 95% uncertainty intervals (UIs) for Ethiopia's nine regions and two chartered cities from 1990 to 2019. Spatiotemporal Gaussian process regression, cause of death ensemble model, Bayesian meta-regression tool, DisMod-MR 2.1, and other models were used to generate fertility, mortality, cause of death, and disability rates. The risk factor attribution estimations followed the general framework established for comparative risk assessment. FINDINGS The SDI steadily improved in all regions and cities from 1990 to 2019, yet the disparity between the highest and lowest SDI increased by 54% during that period. The TFR declined from 6·91 (95% UI 6·59-7·20) in 1990 to 4·43 (4·01-4·92) in 2019, but the magnitude of decline also varied substantially among regions and cities. In 2019, TFR ranged from 6·41 (5·96-6·86) in Somali to 1·50 (1·26-1·80) in Addis Ababa. Life expectancy improved in Ethiopia by 21·93 years (21·79-22·07), from 46·91 years (45·71-48·11) in 1990 to 68·84 years (67·51-70·18) in 2019. Addis Ababa had the highest life expectancy at 70·86 years (68·91-72·65) in 2019; Afar and Benishangul-Gumuz had the lowest at 63·74 years (61·53-66·01) for Afar and 64.28 (61.99-66.63) for Benishangul-Gumuz. The overall increases in life expectancy were driven by declines in under-5 mortality and mortality from common infectious diseases, nutritional deficiency, and war and conflict. In 2019, the age-standardised all-cause death rate was the highest in Afar at 1353·38 per 100 000 population (1195·69-1526·19). The leading causes of premature mortality for all sexes in Ethiopia in 2019 were neonatal disorders, diarrhoeal diseases, lower respiratory infections, tuberculosis, stroke, HIV/AIDS, ischaemic heart disease, cirrhosis, congenital defects, and diabetes. With high SDIs and life expectancy for all sexes, Addis Ababa, Dire Dawa, and Harari had low rates of premature mortality from the five leading causes, whereas regions with low SDIs and life expectancy for all sexes (Afar and Somali) had high rates of premature mortality from the leading causes. In 2019, child and maternal malnutrition; unsafe water, sanitation, and handwashing; air pollution; high systolic blood pressure; alcohol use; and high fasting plasma glucose were the leading risk factors for health loss across regions and cities. INTERPRETATION There were substantial improvements in health over the past three decades across regions and chartered cities in Ethiopia. However, the progress, measured in SDI, life expectancy, TFR, premature mortality, disability, and risk factors, was not uniform. Federal and regional health policy makers should match strategies, resources, and interventions to disease burden and risk factors across regions and cities to achieve national and regional plans, Sustainable Development Goals, and universal health coverage targets. FUNDING Bill & Melinda Gates Foundation.
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Hassan R, Deribe K, Fahal AH, Newport M, Bakhiet S. Clinical epidemiological characteristics of mycetoma in Eastern Sennar locality, Sennar State, Sudan. PLoS Negl Trop Dis 2021; 15:e0009847. [PMID: 34898611 PMCID: PMC8699598 DOI: 10.1371/journal.pntd.0009847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/23/2021] [Accepted: 11/08/2021] [Indexed: 11/18/2022] Open
Abstract
Mycetoma epidemiological features remain uncharacterised. Few studies have been conducted in a community-based setting to explore the epidemiological features and risk factors for mycetoma in Sudan. To bridge this gap, this study was conducted in Eastern Sennar Locality, Sennar State, Sudan, to report the clinical, epidemiological characteristics of mycetoma patients and the disease burden in the state. We used cluster sampling; sixty villages were randomly selected across the locality's five administrative units, and a household-to-household survey was conducted. We collected data using pre-designed questionnaires at the community, household, and individual levels. We performed descriptive analyses of the data and produced prevalence maps using ArcGIS 10.5 ([ESRI] Inc., Redlands CA, USA). A total of 41,176 individuals were surveyed, and 359 mycetoma patients were identified. The overall prevalence of mycetoma was 0.87% (95%CI = 0.78-0.97%), the prevalence among males was 0.83% (95%CI = 0.71-0.96%), and females 0.92% (95% CI = 0.79-1.06%). Individuals in the age group 31-45 years had the highest prevalence among the different age groups (1.52%, 95% CI = 1.23-1.86%). The prevalence map showed patients clustered within the central and north-eastern part of the locality, while villages in the south-western part had few or no cases. In conclusion, this clinical epidemiological study is pioneering and shows that mycetoma is prevalent in certain parts of Sudan. This data obtained will support the design of measures to reduce the disease burden in the state. The survey procedures and protocols can be adopted for further studies in Sudan and beyond.
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Banda GT, Deribe K, Davey G. How can we better integrate the prevention, treatment, control and elimination of neglected tropical diseases with other health interventions? A systematic review. BMJ Glob Health 2021; 6:bmjgh-2021-006968. [PMID: 34663634 PMCID: PMC8524265 DOI: 10.1136/bmjgh-2021-006968] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/27/2021] [Indexed: 11/17/2022] Open
Abstract
Background Globally, about 1.7 billion people living in poverty are affected by one or more of a group of disabling, disfiguring and poverty-promoting conditions known as neglected tropical diseases (NTDs). Major global health actors, like the WHO, have endorsed a shift from vertical to integrated NTD management. Objective This systematic review aimed to evaluate how integration is being conducted and how we can improve it. Methods PubMed, Medline, Cochrane library, Web of Science, Trip, Embase, Global Health and Google Scholar were searched from 1 April to 22 July 2020. We included peer-reviewed articles published between 1 January 2000 and 22 July 2020 in English. Results Database searches produced 24 565 studies, of which 35 articles met the inclusion criteria. Twenty of these articles were conducted in sub-Saharan Africa. Twenty articles were also published between 2015 and 2020. Literature revealed that NTDs have been integrated—among themselves; with water, sanitation and hygiene programmes; with vector control; with primary healthcare; with immunisation programmes; and with malaria management. Integrated mass drug administration for multiple NTDs was the most common method of integration. The three complex, yet common characteristics of successful integration were good governance, adequate financing and total community engagement. Conclusion The dataset identified integrated management of NTDs to be cost effective and potentially to increase treatment coverage. However, the identified modes of integration are not exclusive and are limited by the available literature. Nonetheless, integration should urgently be implemented, while considering the programmatic and sociopolitical context. PROSPERO registration number The study protocol was registered with PROSPERO number, CRD42020167358.
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Hassan R, Simpson H, Cano J, Bakhiet S, Ganawa E, Argaw D, Newport MJ, Deribe K, Fahal AH. Modelling the spatial distribution of mycetoma in Sudan. Trans R Soc Trop Med Hyg 2021; 115:1144-1152. [PMID: 34037803 PMCID: PMC8486737 DOI: 10.1093/trstmh/trab076] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/18/2021] [Accepted: 04/26/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Mycetoma is a neglected tropical disease that is reported worldwide and Sudan has the highest reported number of mycetoma infections across the globe. The incidence, prevalence and burden of mycetoma globally are not precisely known and its risk factors remain largely unelucidated. METHODS This study aimed to identify the environmental predictors of fungal and bacterial mycetoma in Sudan and to identify areas of the country where these niche predictors are met. Demographic and clinical data from confirmed mycetoma patients seen at the Mycetoma Research Centre from 1991 to 2018 were included in this study. Regression and machine learning techniques were used to model the relationships between mycetoma occurrence in Sudan and environmental predictors. RESULTS The strongest predictors of mycetoma occurrence were aridity, proximity to water, low soil calcium and sodium concentrations and the distribution of various species of thorny trees. The models predicted the occurrence of eumycetoma and actinomycetoma in the central and southeastern states of Sudan and along the Nile river valley and its tributaries. CONCLUSION Our results showed that the risk of mycetoma in Sudan varies geographically and is linked to identifiable environmental risk factors. Suitability maps are intended to guide health authorities, academic institutes and organisations involved in planning national scale surveys for early case detection and management, leading to better patient treatment, prevention and control of mycetoma.
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Sultani HM, Okoyo C, Kanyi HM, Njenga SM, Omondi WP, Ayagah I, Buliva M, Ngere I, Gachohi J, Muli J, Newport MJ, Deribe K. Mapping of Podoconiosis Cases and Risk Factors in Kenya: A Nationwide Cross-sectional Study. Am J Trop Med Hyg 2021; 105:1420-1428. [PMID: 34398823 PMCID: PMC8592215 DOI: 10.4269/ajtmh.21-0248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/11/2021] [Indexed: 11/07/2022] Open
Abstract
Podoconiosis is a type of tropical lymphedema that is clinically distinguished from lymphatic filariasis (LF) because it is ascending and commonly bilateral but asymmetric. The disease is a result of a genetically determined inflammatory reaction to long-term exposure to mineral particles in irritant red clay soils derived mainly from volcanic soils. We conducted the first nationwide mapping of the prevalence and risk factors of podoconiosis in Kenya. We performed a population-based cross-sectional survey to determine the national prevalence of podoconiosis and included 6,228 individuals from 48 villages in 24 sub-counties across 15 counties. Participants answered a questionnaire about the history of symptoms compatible with podoconiosis, received a point-of-care antigen test, and underwent a physical examination if they had lymphedema. A confirmed case of podoconiosis was defined as a case in a resident of the study village who had lower limb bilateral and asymmetric lymphedema lasting more than 1 year, negative test results for Wuchereria bancrofti antigen, and other causes of lymphedema ruled out. Of all the individuals surveyed, 89 had lymphedema; of those, 16 of 6228 (0.3%; 95% confidence interval [CI], 0.1-0.5) were confirmed to have podoconiosis. A high prevalence of podoconiosis was found in western (Siaya, 3.1%; Busia, 0.9%) and central (Meru, 1.1%) regions, and a low prevalence was observed in northern (Marsabit, 0.2%), eastern (Makueni, 0.2%), and coastal (Tana River, 0.1%) regions. The identified risk factors were age 56 years or older (adjusted odds ratio [aOR], 5.66; 95% CI, 2.32-13.83; P < 0.001) and rarely wearing shoes (aOR, 18.92; 95% CI, 4.55-78.71; P < 0.001). These results indicated that the podoconiosis prevalence is low and localized in Kenya; therefore, elimination is achievable if appropriate disease prevention, management, and behavioral strategies are promoted.
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Wanji S, Deribe K, Minich J, Debrah AY, Kalinga A, Kroidl I, Luguet A, Hoerauf A, Ritter M. Podoconiosis - From known to unknown: Obstacles to tackle. Acta Trop 2021; 219:105918. [PMID: 33839086 DOI: 10.1016/j.actatropica.2021.105918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/24/2021] [Accepted: 04/01/2021] [Indexed: 12/17/2022]
Abstract
Podoconiosis is a non-filarial and non-communicable disease leading to lymphedema of the lower limbs. Worldwide, 4 million individuals live with podoconiosis, which is accompanied by disability and painful intermittent acute inflammatory episodes that attribute to significant disability adjusted life years (DALYs). Different risk factors like contact with volcanic red clay soil, high altitude (above 1000 m), high seasonal rainfall (above 1000 mm/year) and occupation (e.g., subsistence farmer) are associated with the risk of podoconiosis. Although podoconiosis was described to be endemic in 32 countries in Africa, parts of Latin America and South East Asia, knowledge about related genetics, pathophysiology, immunology and especially the causing molecule(s) in the soil remain uncertain. Thus, podoconiosis can be considered as one of the most neglected diseases. This review provides an overview about this non-filarial related geochemical disease and aim to present perspectives and future directions that might be important for better understanding of the disease, prospect for point-of-care diagnosis, achieving protection and developing novel treatment strategies.
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Deribe K, Mackenzie CD, Newport MJ, Argaw D, Molyneux DH, Davey G. Podoconiosis: key priorities for research and implementation. Trans R Soc Trop Med Hyg 2021; 114:889-895. [PMID: 33169167 PMCID: PMC7738650 DOI: 10.1093/trstmh/traa094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/31/2020] [Accepted: 08/27/2020] [Indexed: 12/14/2022] Open
Abstract
Podoconiosis is a non-infectious tropical lymphoedema causing swelling of the lower legs. Podoconiosis is associated with stigma, depression and reduced productivity, resulting in significant socio-economic impacts for affected individuals, families and communities. It is caused by barefoot exposure to soils and affects disadvantaged populations. Evidence from the past 5 y suggests that podoconiosis is amenable to public health interventions, e.g. footwear and hygiene-based morbidity management, which reduce acute clinical episodes. Although much has been learned in recent years, advances in care for these patients and worldwide control requires further reliable and relevant research. To develop a comprehensive global control strategy, the following key research priorities are important: better understanding of the global burden of podoconiosis through extended worldwide mapping, development of new point-of-care diagnostic methods and approaches to define the presence of the environmental characteristics that contribute to the development of the condition, improving treatment through an increased understanding of the pathogenesis of dermal changes over time, improved understanding of optimal ways of providing patient care at the national level, including research to optimize behavioural change strategies, determine the optimum package of care and integrate approaches to deliver robust surveillance, monitoring and evaluation of control programmes.
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Deribe K, Florence L, Kelemework A, Getaneh T, Tsegay G, Cano J, Giorgi E, Newport MJ, Davey G. Developing and validating a clinical algorithm for the diagnosis of podoconiosis. Trans R Soc Trop Med Hyg 2021; 114:916-925. [PMID: 33174588 PMCID: PMC7738664 DOI: 10.1093/trstmh/traa074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/06/2020] [Accepted: 08/04/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Difficulties in reliably diagnosing podoconiosis have severely limited the scale-up and uptake of the World Health Organization-recommended morbidity management and disability prevention interventions for affected people. We aimed to identify a set of clinical features that, combined into an algorithm, allow for diagnosis of podoconiosis. METHODS We identified 372 people with lymphoedema and administered a structured questionnaire on signs and symptoms associated with podoconiosis and other potential causes of lymphoedema in northern Ethiopia. All individuals were tested for Wuchereria bancrofti-specific immunoglobulin G4 in the field using Wb123. RESULTS Based on expert diagnosis, 344 (92.5%) of the 372 participants had podoconiosis. The rest had lymphoedema due to other aetiologies. The best-performing set of symptoms and signs was the presence of moss on the lower legs and a family history of leg swelling, plus the absence of current or previous leprosy, plus the absence of swelling in the groin, plus the absence of chronic illness (such as diabetes mellitus or heart or kidney diseases). The overall sensitivity of the algorithm was 91% (95% confidence interval [CI] 87.6 to 94.4) and specificity was 95% (95% CI 85.45 to 100). CONCLUSIONS We developed a clinical algorithm of clinical history and physical examination that could be used in areas suspected or endemic for podoconiosis. Use of this algorithm should enable earlier identification of podoconiosis cases and scale-up of interventions.
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Ndzeshang BL, Mbiakop RT, Nchanji GT, Kien CA, Amambo GN, Abong RA, Yuyun T, Beng AA, Bonekeh J, Ritter M, Esum ME, Cho JF, Njouendou AJ, Ndifor IN, Deribe K, Fombad FF, Enyong P, Klarmann-Schulz U, Hoerauf A, Wanji S. Clinical, haematological and biochemical profiling of podoconiosis lymphoedema patients prior to their involvement in a clinical trial in the Northwest Region of Cameroon. Trans R Soc Trop Med Hyg 2021; 114:954-961. [PMID: 33258944 PMCID: PMC7738657 DOI: 10.1093/trstmh/traa146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 11/03/2020] [Accepted: 11/09/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Prior to carrying out clinical trials, it is important to assess the health status of the study participants to be able to interpret subsequent changes that may be related to the effects of the treatments during the follow-up of patients. This study presents the clinical, haematological and biochemical profiles of podoconiosis patients prior to their involvement in the PodoLEDoxy clinical trial. METHODS All lower limb lymphoedema patients visiting the centre were screened and a podoconiosis diagnosis was based on clinical manifestation and detailed medical history. Patients who satisfied the eligibility criteria were enrolled in the study and their demographic data, vital signs and medical history were collected followed by biochemical and haematological examinations. RESULTS Of the 222 participants enrolled in the study, 55.4% and 41.4% had either stage 3 or 2 podoconiosis as their highest stages, respectively. On physical examination, gastritis (46%) and poor vision (2.7%) were the most prevalent health issues identified. The majority of haematological and biochemical values were within the normal range except for mean platelet volume (47.7%), plateletcrit (58.1%), platelet distribution width (66.2%), mean corpuscular volume (67.6%) and red cell distribution width-standard deviation (79.3%), where >40% of the study participants had values out of the normal. CONCLUSION The clinical, haematological and biochemical profiles of the study participants were largely within the normal range except for certain haematological parameters that might be worth investigating.
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Deribe K, Negussu N, Newport MJ, Davey G, Turner HC. The health and economic burden of podoconiosis in Ethiopia. Trans R Soc Trop Med Hyg 2021; 114:284-292. [PMID: 32055853 PMCID: PMC7139123 DOI: 10.1093/trstmh/traa003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/31/2019] [Accepted: 01/10/2019] [Indexed: 12/11/2022] Open
Abstract
Background Podoconiosis is one of the leading causes of lymphoedema-related morbidity in low-income settings, but little is known about the scale of its health and economic impact. This information is required to inform control programme planning and policy. In this study, we estimated the health and economic burden of podoconiosis in Ethiopia. Methods We developed a model to estimate the health burden attributed to podoconiosis in terms of the number of disability-adjusted life years (DALYs) and the economic burden. We estimated the economic burden by quantifying the treatment and morbidity-management costs incurred by the healthcare system in managing clinical cases, patients' out-of-pocket costs and their productivity costs. Results In 2017, there were 1.5 million cases of podoconiosis in Ethiopia, which corresponds to 172 073 DALYs or 182 per 100 000 people. The total economic burden of podoconiosis in Ethiopia is estimated to be US$213.2 million annually and 91.1% of this resulted from productivity costs. The average economic burden per podoconiosis case was US$136.9. Conclusions The national cost of podoconiosis is formidable. If control measures are scaled up and the morbidity burden reduced, this will lead to Ethiopia saving millions of dollars. Our estimates provide important benchmark economic costs to programme planners, policymakers and donors for resource allocation and priority setting.
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Sartorius B, VanderHeide JD, Yang M, Goosmann EA, Hon J, Haeuser E, Cork MA, Perkins S, Jahagirdar D, Schaeffer LE, Serfes AL, LeGrand KE, Abbastabar H, Abebo ZH, Abosetugn AE, Abu-Gharbieh E, Accrombessi MMK, Adebayo OM, Adegbosin AE, Adekanmbi V, Adetokunboh OO, Adeyinka DA, Ahinkorah BO, Ahmadi K, Ahmed MB, Akalu Y, Akinyemi OO, Akinyemi RO, Aklilu A, Akunna CJ, Alahdab F, Al-Aly Z, Alam N, Alamneh AA, Alanzi TM, Alemu BW, Alhassan RK, Ali T, Alipour V, Amini S, Ancuceanu R, Ansari F, Anteneh ZA, Anvari D, Anwer R, Appiah SCY, Arabloo J, Asemahagn MA, Asghari Jafarabadi M, Asmare WN, Atnafu DD, Atout MMW, Atreya A, Ausloos M, Awedew AF, Ayala Quintanilla BP, Ayanore MA, Aynalem YA, Ayza MA, Azari S, Azene ZN, Babar ZUD, Baig AA, Balakrishnan S, Banach M, Bärnighausen TW, Basu S, Bayati M, Bedi N, Bekuma TT, Bezabhe WMM, Bhagavathula AS, Bhardwaj P, Bhattacharyya K, Bhutta ZA, Bibi S, Bikbov B, Birhan TA, Bitew ZW, Bockarie MJ, Boloor A, Brady OJ, Bragazzi NL, Briko AN, Briko NI, Burugina Nagaraja S, Butt ZA, Cárdenas R, Carvalho F, Charan J, Chatterjee S, Chattu SK, Chattu VK, Chowdhury MAK, Chu DT, Cook AJ, Cormier NM, Cowden RG, Culquichicon C, Dagnew B, Dahlawi SMA, Damiani G, Daneshpajouhnejad P, Daoud F, Daryani A, das Neves J, Davis Weaver N, Derbew Molla M, Deribe K, Desta AA, Deuba K, Dharmaratne SD, Dhungana GP, Diaz D, Djalalinia S, Doku PN, Dubljanin E, Duko B, Eagan AW, Earl L, Eaton JW, Effiong A, El Sayed Zaki M, El Tantawi M, Elayedath R, El-Jaafary SI, Elsharkawy A, Eskandarieh S, Eyawo O, Ezzikouri S, Fasanmi AO, Fasil A, Fauk NK, Feigin VL, Ferede TY, Fernandes E, Fischer F, Foigt NA, Folayan MO, Foroutan M, Francis JM, Fukumoto T, Gad MM, Geberemariyam BS, Gebregiorgis BG, Gebremichael B, Gesesew HA, Getacher L, Ghadiri K, Ghashghaee A, Gilani SA, Ginindza TG, Glagn M, Golechha M, Gona PN, Gubari MIM, Gugnani HC, Guido D, Guled RA, Hall BJ, Hamidi S, Handiso DW, Hargono A, Hashi A, Hassanipour S, Hassankhani H, Hayat K, Herteliu C, Hidru HDD, Holla R, Hosgood HD, Hossain N, Hosseini M, Hosseinzadeh M, Househ M, Hwang BF, Ibitoye SE, Ilesanmi OS, Ilic IM, Ilic MD, Irvani SSN, Iwu CCD, Iwu CJ, Iyamu IO, Jain V, Jakovljevic M, Jalilian F, Jha RP, Johnson KB, Joshua V, Joukar F, Jozwiak JJ, Kabir A, Kalankesh LR, Kalhor R, Kamath A, Kamyari N, Kanchan T, Karami Matin B, Karch A, Karimi SE, Kasa AS, Kassahun G, Kayode GA, Kazemi Karyani A, Keiyoro PN, Kelkay B, Khalid N, Khan G, Khan J, Khan MN, Khatab K, Khazaei S, Kim YJ, Kisa A, Kisa S, Kochhar S, Kopec JA, Kosen S, Koulmane Laxminarayana SL, Koyanagi A, Krishan K, Kuate Defo B, Kugbey N, Kulkarni V, Kumar M, Kumar N, Kurmi OP, Kusuma D, Kuupiel D, Kyu HH, La Vecchia C, Lal DK, Lam JO, Landires I, Lasrado S, Lazarus JV, Lazzar-Atwood A, Lee PH, Leshargie CT, Li B, Liu X, Lopukhov PD, M. Amin HI, Madi D, Mahasha PW, Majeed A, Maleki A, Maleki S, Mamun AA, Manafi N, Mansournia MA, Martins-Melo FR, Masoumi SZ, Mayala BK, Meharie BG, Meheretu HAA, Meles HG, Melku M, Mendoza W, Mengesha EW, Meretoja TJ, Mersha AM, Mestrovic T, Miller TR, Mirica A, Mirzaei-Alavijeh M, Mohamad O, Mohammad Y, Mohammadian-Hafshejani A, Mohammed JA, Mohammed S, Mohammed S, Mokdad AH, Mokonnon TM, Molokhia M, Moradi M, Moradi Y, Moradzadeh R, Moraga P, Mosser JF, Munro SB, Mustafa G, Muthupandian S, Naderi M, Nagarajan AJ, Naghavi M, Naveed M, Nayak VC, Nazari J, Ndejjo R, Nepal S, Netsere HB, Ngalesoni FN, Nguefack-Tsague G, Ngunjiri JW, Nigatu YT, Nigussie SN, Nnaji CA, Noubiap JJ, Nuñez-Samudio V, Oancea B, Odukoya OO, Ogbo FA, Oladimeji O, Olagunju AT, Olusanya BO, Olusanya JO, Omer MO, Omonisi AEE, Onwujekwe OE, Orisakwe OE, Otstavnov N, Owolabi MO, P A M, Padubidri JR, Pakhale S, Pana A, Pandi-Perumal SR, Patel UK, Pathak M, Patton GC, Pawar S, Peprah EK, Pokhrel KN, Postma MJ, Pottoo FH, Pourjafar H, Pribadi DRA, Quazi Syed Z, Rafiei A, Rahim F, Rahman MHU, Rahmani AM, Ram P, Rana J, Ranabhat CL, Rao S, Rao SJ, Rathi P, Rawaf DL, Rawaf S, Rawassizadeh R, Renjith V, Reta MA, Rezaei N, Rezapour A, Ribeiro AI, Ross JM, Rumisha SF, Sagar R, Sahu M, Sajadi SM, Salem MR, Samy AM, Sathian B, Schutte AE, Seidu AA, Sha F, Shafaat O, Shahbaz M, Shaikh MA, Shaka MF, Sheikh A, Shibuya K, Shin JI, Shivakumar KM, Sidemo NB, Singh JA, Skryabin VY, Skryabina AA, Soheili A, Soltani S, Somefun OD, Sorrie MB, Spurlock EE, Sufiyan MB, Taddele BW, Tadesse EG, Tamir Z, Tamiru AT, Tanser FC, Taveira N, Tehrani-Banihashemi A, Tekalegn Y, Tesfay FH, Tessema B, Tessema ZT, Thakur B, Tolani MA, Topor-Madry R, Torrado M, Tovani-Palone MR, Traini E, Tsai AC, Tsegaye GW, Ullah I, Ullah S, Umeokonkwo CD, Unnikrishnan B, Vardavas C, Violante FS, Vo B, Wado YD, Waheed Y, Wamai RG, Wang Y, Ward P, Werdecker A, Wickramasinghe ND, Wijeratne T, Wiysonge CS, Wondmeneh TG, Yamada T, Yaya S, Yeshaw Y, Yeshitila YG, Yilma MT, Yip P, Yonemoto N, Yosef T, Yusefzadeh H, Zaidi SS, Zaki L, Zamanian M, Zastrozhin MS, Zastrozhina A, Zewdie DT, Zhang Y, Zhang ZJ, Ziapour A, Hay SI, Dwyer-Lindgren L. Subnational mapping of HIV incidence and mortality among individuals aged 15-49 years in sub-Saharan Africa, 2000-18: a modelling study. Lancet HIV 2021; 8:e363-e375. [PMID: 34087097 PMCID: PMC8187986 DOI: 10.1016/s2352-3018(21)00051-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND High-resolution estimates of HIV burden across space and time provide an important tool for tracking and monitoring the progress of prevention and control efforts and assist with improving the precision and efficiency of targeting efforts. We aimed to assess HIV incidence and HIV mortality for all second-level administrative units across sub-Saharan Africa. METHODS In this modelling study, we developed a framework that used the geographically specific HIV prevalence data collected in seroprevalence surveys and antenatal care clinics to train a model that estimates HIV incidence and mortality among individuals aged 15-49 years. We used a model-based geostatistical framework to estimate HIV prevalence at the second administrative level in 44 countries in sub-Saharan Africa for 2000-18 and sought data on the number of individuals on antiretroviral therapy (ART) by second-level administrative unit. We then modified the Estimation and Projection Package (EPP) to use these HIV prevalence and treatment estimates to estimate HIV incidence and mortality by second-level administrative unit. FINDINGS The estimates suggest substantial variation in HIV incidence and mortality rates both between and within countries in sub-Saharan Africa, with 15 countries having a ten-times or greater difference in estimated HIV incidence between the second-level administrative units with the lowest and highest estimated incidence levels. Across all 44 countries in 2018, HIV incidence ranged from 2·8 (95% uncertainty interval 2·1-3·8) in Mauritania to 1585·9 (1369·4-1824·8) cases per 100 000 people in Lesotho and HIV mortality ranged from 0·8 (0·7-0·9) in Mauritania to 676·5 (513·6-888·0) deaths per 100 000 people in Lesotho. Variation in both incidence and mortality was substantially greater at the subnational level than at the national level and the highest estimated rates were accordingly higher. Among second-level administrative units, Guijá District, Gaza Province, Mozambique, had the highest estimated HIV incidence (4661·7 [2544·8-8120·3]) cases per 100 000 people in 2018 and Inhassunge District, Zambezia Province, Mozambique, had the highest estimated HIV mortality rate (1163·0 [679·0-1866·8]) deaths per 100 000 people. Further, the rate of reduction in HIV incidence and mortality from 2000 to 2018, as well as the ratio of new infections to the number of people living with HIV was highly variable. Although most second-level administrative units had declines in the number of new cases (3316 [81·1%] of 4087 units) and number of deaths (3325 [81·4%]), nearly all appeared well short of the targeted 75% reduction in new cases and deaths between 2010 and 2020. INTERPRETATION Our estimates suggest that most second-level administrative units in sub-Saharan Africa are falling short of the targeted 75% reduction in new cases and deaths by 2020, which is further compounded by substantial within-country variability. These estimates will help decision makers and programme implementers expand access to ART and better target health resources to higher burden subnational areas. FUNDING Bill & Melinda Gates Foundation.
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Rebollo MP, Onyeze AN, Tiendrebeogo A, Senkwe MN, Impouma B, Ogoussan K, Zouré HGM, Deribe K, Cano J, Kinvi EB, Majewski A, Ottesen EA, Lammie P. Baseline Mapping of Neglected Tropical Diseases in Africa: The Accelerated WHO/AFRO Mapping Project. Am J Trop Med Hyg 2021; 104:2298-2304. [PMID: 33901001 PMCID: PMC8176498 DOI: 10.4269/ajtmh.20-1538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/10/2021] [Indexed: 11/30/2022] Open
Abstract
Mapping is a prerequisite for effective implementation of interventions against neglected tropical diseases (NTDs). Before the accelerated World Health Organization (WHO)/Regional Office for Africa (AFRO) NTD Mapping Project was initiated in 2014, mapping efforts in many countries were frequently carried out in an ad hoc and nonstandardized fashion. In 2013, there were at least 2,200 different districts (of the 4,851 districts in the WHO African region) that still required mapping, and in many of these districts, more than one disease needed to be mapped. During its 3-year duration from January 2014 through the end of 2016, the project carried out mapping surveys for one or more NTDs in at least 2,500 districts in 37 African countries. At the end of 2016, most (90%) of the 4,851 districts had completed the WHO-required mapping surveys for the five targeted Preventive Chemotherapy (PC)-NTDs, and the impact of this accelerated WHO/AFRO NTD Mapping Project proved to be much greater than just the detailed mapping results themselves. Indeed, the AFRO Mapping Project dramatically energized and empowered national NTD programs, attracted donor support for expanding these programs, and developed both a robust NTD mapping database and data portal. By clarifying the prevalence and burden of NTDs, the project provided not only the metrics and technical framework for guiding and tracking program implementation and success but also the research opportunities for developing improved diagnostic and epidemiologic sampling tools for all 5 PC-NTDs—lymphatic filariasis, onchocerciasis, schistosomiasis, soil-transmitted helminthiasis, and trachoma.
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