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nutritionresearch47 2017 1 12 available online at www sciencedirect com sciencedirect www nrjournal com review gapsandopportunities for nutrition research in relation to non communicable diseases in arab countries call for ...

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                                                            NUTRITIONRESEARCH47(2017)1–12
                                                      Available online at www.sciencedirect.com
                                                                    ScienceDirect
                                                                     www.nrjournal.com
              Review
              Gapsandopportunities for nutrition research in
              relation to non-communicable diseases in Arab
              countries: Call for an informed research agenda
              FarahNajaa,1,HibehShatilaa,LokmanMehob,MohamadAlameddinec,d,1,SallyHabera,
                                       a,1                             e                      a, ,1
              Lara Nasreddine              , Abla Mehio Sibai , Nahla Hwalla ⁎
              a Nutrition and Food Sciences Department, Faculty of Agriculture and Food Sciences, American University of Beirut, P.O. BOX 11-0.236 Riad El
              Solh, 11072020 Beirut, Lebanon
              b University Libraries, American University of Beirut, P.O. BOX 11-0.236 Riad El Solh, 11072020 Beirut, Lebanon
              c Mohammed Bin Rashid University, Dubai Healthcare City, Building 14, 505055, Dubai, UAE
              d Department of Health Management and Policy, Faculty of Health Sciences, American University of Beirut. Riad El-Solh, Beirut, 1107 2020, Lebanon
              e Department of Epidemiology and Population Health, Faculty of Health Sciences, American University of Beirut, P.O. BOX 11-0.236 Riad El
              Solh, 11072020 Beirut, Lebanon
              ARTICLEINFO                                 ABSTRACT
              Article history:                            Effective public health nutrition interventions are needed to curb the escalating prevalence of
              Received 23 January 2017                    non-communicable diseases (NCDs) in many Arab countries. In order to generate the scientific
              Revised 27 July 2017                        evidenceneededforthesuccessoftheseinterventions,aninformedresearchagendashouldbe
              Accepted 31 July 2017                       developed. The purpose of this review is to identify gaps and opportunities for research on
                                                          nutrition and NCDs amongArabcountries,whichisanimportantsteptowardstheformulation
              Keywords:                                   of this research agenda. Published papers that addressednutritionandNCDsinArabcountries
              Nutrition                                   betweentheyears2006and2015werereviewed(n = 824).Themaingapsidentifiedwererelated
              Non-communicablediseases                    to the predominance of laboratory-based studies with few cohort and intervention studies, and
              Arab countries                              the small percentage of articles examining dietary patterns. While food frequency question-
              Research agenda                             naires were the main dietary assessment method used, only 35% were validated. Very few
              Diet                                        studies included children and the majority considered nutrition in isolation, excluding other
                                                          environmentalfactors.Opportunitiesidentifiedincludedthepromisingmomentuminstudying
                                                          nutrition and NCDs among Arab countries, evidenced by an increasing number of articles
                                                          published over the years, that may be guided in future nutrition research to fill the identified
                                                          gaps. In addition, the higher number of articles in high-income countries coupled with the
                  Abbreviations: NCDs, Noncommunicable diseases; CVD, Cardiovascular diseases; BMI, Body-mass index; DALY, The Disability-
              adjusted life years; CMD, Cardiometabolic diseases and diabetes mortality; EMBASE, Excerpta Medica database; IF, Impact factor; IDRC,
              International Development Research Centre; RCT, Randomized controlled trial; JCR, Journal Citation Reports by Thomson Reuters; FFQs,
              Foodfrequencyquestionnaires;SPSS,StatisticalPackagefortheSocialSciences;HIC,Highincomecountries;UAE,UnitedArabEmirates;
              KSA, Kingdom of Saudi Arabia; MIC, Middle-income countries; LIC, Low-income countries; R&D, Research and development; GDP, Gross
              domestic product; QNRF, Qatar National Research Fund.
               ⁎ Corresponding author.
                  E-mailaddresses:fn14@aub.edu.lb(F.Naja),hs120@aub.edu.lb(H.Shatila),lmeho@aub.edu.lb(L.Meho),shh31@mail.aub.edu(S.Haber),
              ln10@aub.edu.lb (L. Nasreddine), am00@aub.edu.lb (A.M. Sibai), nahla@aub.edu.lb (N. Hwalla).
                1 Naja F, Alameddine M, Nasreddine L, Sibai AM and Hwalla N are members of the Nutrition Obesity and Related Disorders (NORD)
              program at the Global Health Institute (GHI), American University of Beirut, PO Box 11-0.236 Riad El Solh, 11072020 Beirut, Lebanon.
              http://dx.doi.org/10.1016/j.nutres.2017.07.011
              0271-5317/© 2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://
              creativecommons.org/licenses/by-nc-nd/4.0/).
             2                                              NUTRITIONRESEARCH47(2017)1–12
                                                           impact of papers in middle-income countries suggests an opportunity of synergistic collabora-
                                                           tion among these countries. The identified gaps and opportunities in this review may serve as
                                                           basis for Arab countries to start developing a research agenda in the area of nutrition and NCDs.
                                                           ©2017TheAuthors.Published by Elsevier Inc. This is an open access article under the CC
                                                                              BY-NC-NDlicense (http://creativecommons.org/licenses/by-nc-nd/4.0/).
             Article Outline
                1.   Introduction ...........................................................0
                2.   Approach.............................................................0
                     2.1.   Identifying the research question ...........................................0
                     2.2.   Search strategy .....................................................0
                     2.3.   Selection of relevant studies ..............................................0
                     2.4.   Data charting ......................................................0
                     2.5.   Collating, summarizing, and reporting the results ..................................0
                3.   Gapsinnutrition and NCDs research in Arab countries ...................................0
                4.   Opportunities in nutrition and NCDs
                     research in Arab countries ...................................................0
                5.   Process for the development of a research agenda ......................................0
                6.   Future research directions in the area of nutrition and NCDs in Arab countries ......................0
                7.   Conclusions ...........................................................0
               Acknowledgment        ..........................................................0
                References...............................................................0
             1.       Introduction                                                  vegetables, and complex carbohydrates) and the migration
                                                                                    towards a more Westernized type of diet that is lower in
             During the past decades, many Arab countries have witnessed            carbohydrates and higher in animal-based food. This type of
             economic, social, and lifestyle changes accompanied by a rapid         diet is high in sugar and caloric content and contains larger
             increase in noncommunicable diseases (NCDs) and obesity                amounts of processed food (eg, chocolate, soft drinks) [1].A
             prevalence[1].Thisincreasewasthehighestintheworldbetween               comparative risk assessment study examining the impact of
             the years 2006 and 2015 [2]. In 2008, the death count due to NCDs      dietary habits on cardiovascular and diabetes mortality in 22
             in Arabcountrieswas1.2million,accountingforalmost60%ofall              Arab countries showed that low intake of protective foods,
             deaths.Inadditiontothesehighrates,theprofilesofNCDsamong               namely fruits and whole grains, was the leading dietary risk
             Arabcountriesaresignificantlydifferentfromothercountriesand            factor for cardio-metabolic diseases (CMD) and diabetes
             even differ between the Arab countries themselves. For instance,       mortality, accounting for 12% and 11% of CMD deaths,
             the epidemiological transition currently experienced by most           respectively. Furthermore, among harmful dietary factors,
             Arabcountries, from a burden of disease dominated by mortality         high intake of sodium was responsible for the highest
             from infectious diseases to mortality from NCDs, is compressed         proportion of CMD deaths [8].
             into a shorter time frame than that experienced historically by           The escalating prevalence of NCDs and their related risk
             developed countries. Additionally, there is a coexistence of           factors has led most Arab countries to hold national, regional,
             infectious diseases and ill-functioning health systems together        andinternationalmeetingsinordertofindsolutionsthatwill
             withtheescalating burden of NCDs in many Arab countries [3-5].         curb the burden of these diseases [9,10]. A common recom-
             Furthermore, there is a clear socioeconomic and wealth gradient        mendation of these meetings is the need to develop public
             asaresultofoilproductioninArabcountries.Suchagradientmay               health policies and interventions tackling the main modifi-
             haveadirectinfluenceontheNCDsprofilesofthesecountries[6].              able risk factors of NCDs, including nutrition and dietary
                 Concomitant with the escalating burden of NCDs, Arab               habits [9,10]. These policies and interventions ought to be
             countries have been undergoing nutrition transition and                based on the best available scientific evidence for their
             changes in dietary habits, which were both postulated as               feasibility, efficacy, and cost effectiveness [7]. Although
             major risk factors for most NCDs. In fact, in Arab countries,          studies conducted in developed countries contributed signif-
             available data showthatdietandhighbody-massindex(BMI)                  icantly to such scientific evidence, their results may have
             are the risk factors with the highest attributable disability-         limitedapplicability to ArabcountriesgiventhedistinctNCDs
             adjusted life years (DALYs) for NCDs [7]. Since the turn of the        profiles in these countries andthespecificities of their dietary
             century, due to ongoing rapid urbanization and economic                habits and practices [11]. Therefore, an elemental step
             growth, many Arab countries have been witnessing an                    towards the success of public health nutrition policies and
             erosion of traditional dietary patterns (ie, rich in fruits,           interventions to curb the NCDs epidemic in Arab countries is
                                                               NUTRITIONRESEARCH47(2017)1–12                                                              3
               the formulation of a comprehensive and informed research                 Bahrain OR Bahrein OR Comores OR Comoros OR Djibouti
               agenda that will ultimately allow for generating the needed              OREgypt OR Egypte OR Emirats OR Emirates OR Irak OR Iraq
               robust context and culture specific evidence base. Such an               ORJordanORJordanieORKuwaitORKoweitORLebaneseOR
               informed research agenda will support Arab countries in                  Lebanon OR Liban OR Libanaise OR Libya OR Libye OR
               reducing research waste and will assist research funders in              Mauritania OR Mauritanie OR Morocco OR Maroc OR Oman
               setting granting priorities in the area of nutrition and NCDs [12].      OR Palestine OR Palestinian OR Palestinienne OR Qatar OR
                   Over the past 2 decades, scoping reviews have become an              SaudiORSaouditeORSomaliaORSomalieORSudanORSyria
               increasingly popular form of knowledge synthesis of health-              ORSyrie OR Tunisia OR Tunisie OR Yemen OR Gaza OR West
               related research, especially in areas with complex multifac-             Bank. In PubMed, while keywords and the majority of titles
               torial concepts, disciplines with emerging evidence, and                 and abstracts are in English language, the affiliation of the
               where various study designs are employed [13]. Among                     authors could be listed in a language different than English.
               reasons cited for conducting a scoping review, the most                  Given that in several countries of the Arab world French is
               relevant in the context of this study are: examining the                 considered an official language in addition to Arabic (such as
               extent,range,andnatureofresearchactivity;identifyinggaps                 LebanonandAlgeria),theuseoftheFrenchinadditiontothe
               and opportunities in the existing literature; informing prac-            English versions of country names was deemed important.
               tice, programs, and policy; and providing direction for future           The terms used for nutrition were Eating OR Nutrient* OR
               research priorities [14,15].                                             Nutritio* OR Diet* OR Food OR Hunger* OR Malnutritio* OR
                   The objective of this scoping review is to identify gaps and         Malnourish* OR Undernutri* OR Undernourish*. As for NCDs,
               opportunitiesinnutritionresearchinrelationtoNCDsinorderto                the following terms were used: Angina Pectoris OR Artery
               formulate an informed research agenda leading to evidence-               Disease* OR Arterial Disease* OR Atherosclerosis OR Cancer*
               based national policies and interventions to curb the escalating         ORCardiovascular Disease* OR Cerebrovascular Accident* OR
               burden of NCDs in Arab countries. Using PubMed, a literature             Degenerative Disease* OR Diabet* OR Diabetes Mellitus OR
               search was conducted to retrieve articles that addressed nutri-          Dyslipidemia OR Dyspnea OR Familial Hypercholesterolemia OR
               tioninrelationtoNCDsinArabcountriesbetweentheyears2006                   Fibrosis ORGlucoseImpairmentORHeartDisease*ORHeartFailure*
               and 2015. According to Ulrich's International Periodicals Directory,     OR Heart Infarction* OR High Blood Glucose OR Raised Blood
               approximately 57% of indexed Arabic medical journals are not             Pressure OR Hypercholesterolemia OR Hyperchylomicronemia OR
               covered by PubMed [16]. To ensure sufficient coverage of Arabic          Hyperglycemia OR Hyperinsulinemia OR Hyperlipidemia OR
               journals the search was also carried out in Embase, Scopus,              HyperlipoproteinemiaORImpairedGlucoseToleranceORMetabolic
               EBSCO, and ProQuest. With the addition of these databases, the           Syndrome* OR Nerve Degeneration OR Pulmonary Disease* OR
               coverage of indexed Arabic medical journals in this review               Pulmonary Function* OR Stroke* OR Thrombosis OR Transient
               increased to 82%.                                                        Ischemic Attack OR Tumor* OR Vascular Dementia OR Vascular
                                                                                        Disease* OR Overweight OR Obesity OR BMI.
               2.       Approach                                                        2.3.     Selection of relevant studies
               Ascoping review method was implemented to examine and                    A total of 2851 articles were identified using the search
               studytherelevantliterature.Forthepurposeofthisstudy,the                  strategy. Several meetings of the research team were held at
               methodological framework first proposed by Arksey et al and              the beginning, midpoint, and at the end of the review to
               revised later by Levac et al was used [13,14]. This framework            discuss issues related to selection of relevant studies. The
               consists of 5 iterative steps: (1) identifying the research              process of choosing the criteria for selecting relevant studies
               question; (2) search strategy; (3) selection of relevant studies;        wasiterative and relied on examining the title, abstract, and,
               (4) data charting; and finally (5) collating, summarizing, and           whennecessary,thefulltextofthearticles.Twoindependent
               reporting the results [14].                                              reviewers(HSandSH)examinedthetitlesandabstractsofthe
                                                                                        2851 identified articles. When disagreement occurred regard-
               2.1.     Identifying the research question                               ing the inclusion/exclusion of an article, the input of a third
                                                                                        reviewer from the research team was sought. For every batch
               The primary research question that guided this study: What               of 500 articles reviewed, the agreement between the 2
               aretheexistinggapsandopportunitiesofcurrentresearchled                   reviewers was assessed. Only in one instance was the
               by scientists affiliated with institutions in the Arab world in          agreement found to be below 85%, and a meeting was held
               the area of nutrition in relation to NCDs?                               between members of the research team to clarify the
                                                                                        selection process and address concerns.
               2.2.     Search strategy                                                    Foranarticletobeselectedandincludedinthisreviewthe
                                                                                        following conditions should have been met:
               The search strategy was developed by a multidisciplinary
               team consisting of a nutrition epidemiologist, an NCDs                      1- The affiliation of the first or the corresponding author
               epidemiologist, 2 clinical nutritionists, and a librarian. Three               was with an institution in Arab country. Articles in
               main topics related to the key concepts of the research                        which the first and/or the corresponding author were
               questions were identified, namely Arab countries, nutrition,                   affiliated with an institution in any Arab country were
               andNCDs.Withinthesearchstrategy,thetermsusedforArab                            included. The affiliations of the first authors were
               countries were Alger OR Algeria OR Algerie OR Algiers OR                       extracted from PubMed. As for the affiliations of the
            4                                           NUTRITIONRESEARCH47(2017)1–12
                  corresponding authors, they were imported from             reading the full text of the articles, 233 additional articles
                  EMBASE for the years 2005 until 2014, when these           were excluded. Out of the remaining 847 articles, 23 were
                  affiliations became available through PubMed. The          duplicates and were also removed. The final count of articles
                  affiliations of both the first and the corresponding       included in this review was 824 (Fig. 1).
                  authors were considered relevant because in health,
                  nutrition, and medical sciences, both are generally        2.4.    Data charting
                  considered the main authors of multi-authored article.
                2- The article addressed one of the 4 main NCDs as listed    In line with the scope of the research question of this study,
                  by the WHO (cardiovascular diseases, cancers, chronic      the research team developed the data charting form in order
                  respiratory diseases, and diabetes) or one of the main     to determine which variables to extract. The development
                  metabolic or physiological risk factors for these NCDs     process of this form was iterative in that, after the initial
                  (elevated blood pressure, high blood glucose, over-        versionwasdeveloped,the2researcherswholaterconducted
                  weight or obesity, and hyperlipidemia) [17].               data extraction independently pilot tested the form by
                3- The article addressed nutrition or nutrition-related      reviewing and extracting data from 15 articles. The research
                  topics, such as energy, macro- or micronutrients,          team then met to review the pilot test of this form and used
                  foods, diets, and dietary habits.                          the results to refine it in order to ascertain that the approach
                                                                             that they had used appropriately addressed the research
               Of the 2851 articles identified through the search strategy,  question of the study. The data charting form captured
            1771 were excluded at the title and abstract review level for    information related to the affiliation of the corresponding
            irrelevanceand/orfornotmeetingtheinclusioncriteria.Upon          author, year of publication, impact factor (IF) of the journal,
                                  Identification       Articles identified through the search strategy (n = 2,851)
                                                                                                  Articles excluded 
                                                                                                  upon reading the 
                                                                                                  abstract, for not 
                                                                                                meeting the inclusion 
                                                                                                 criteria (n = 1,771)
                                   Screening                       Articles screened for 
                                                                    inclusion (n = 1080)
                                                                                                Articles excluded 
                                                                                                upon reading the full 
                                                                                                text (n = 233)
                                   Eligibility                      Articles eligible for 
                                                                     inclusion (n = 847)
                                                                                                Duplicate articles
                                                                                                excluded (n = 23)
                                                                   Articles addressing nutrition 
                                    Inclusion                       in NCD research (n = 824)
                   Fig. 1 – Selection of articles in the review of nutrition in NCDs research among Arab countries from 2006 to 2015.
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...Nutritionresearch available online at www sciencedirect com nrjournal review gapsandopportunities for nutrition research in relation to non communicable diseases arab countries call an informed agenda farahnajaa hibehshatilaa lokmanmehob mohamadalameddinec d sallyhabera a e lara nasreddine abla mehio sibai nahla hwalla and food sciences department faculty of agriculture american university beirut p o box riad el solh lebanon b libraries c mohammed bin rashid dubai healthcare city building uae health management policy epidemiology population articleinfo abstract article history effective public interventions are needed curb the escalating prevalence received january ncds many order generate scientific revised july evidenceneededforthesuccessoftheseinterventions aninformedresearchagendashouldbe accepted developed purpose this is identify gaps opportunities on amongarabcountries whichisanimportantsteptowardstheformulation keywords published papers that addressednutritionandncdsinarabcount...

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