Supplementary Table 1 Search strategies Database MEDLIE (via PubMed) Search Strategy ( older adults OR elderly OR older people ) AD ( Mediterranean diet OR dietary pattern OR dietary score OR diet [Mesh] OR dietary adherence OR Mediterranean) AD (frail* OR frailty OR sarcopenia [Mesh] OR physical disability OR functional disability OR disabled persons [Mesh]) EMBASE SCOPUS LILACS SciELO Web of Science CIAHL ProQuest aged /exp AD ( Mediterranean diet /exp OR dietary pattern OR dietary score OR diet /exp OR dietary compliance /exp) AD ( frail older adults OR frail elderly /exp OR frail older people OR frailty OR sarcopenia /exp OR physical disability /exp OR functional disability OR disabled person /exp) ( older adults OR elderly OR older people ) AD ( Mediterranean diet OR dietary pattern OR dietary score OR diet OR dietary adherence OR Mediterranean ) AD ( frail older adults OR frail older people OR frail elderly OR frailty OR sarcopenia OR physical disability OR functional disability OR disabled persons ) adherence OR Mediterranean) AD (frail older adults OR frail adherence OR Mediterranean) AD (frail older adults OR frail ( older adults OR elderly OR older people ) AD ( Mediterranean diet OR dietary pattern OR dietary score OR diet OR dietary adherence OR Mediterranean) AD ( frail older adults OR frail elderly OR frailty OR frail older people OR sarcopenia OR physical disability OR functional disability OR disabled persons ) adherence OR Mediterranean) AD (frail older adults OR frail
adherence OR Mediterranean) AD (frail older adults OR frail CAPES Academic works Google Scholar Applied filters: - Database: ProQuest Dissertations & Theses Global: Health & Medicine idosos AD (fragilidade OR sarcopenia OR incapacidade física) AD (dieta mediterrânea OR padrão alimentar OR adesão dietética) elderly AD Mediterranean diet OR dietary pattern OR dietary adherence AD frail older adults OR frail elderly OR frailty OR frail older people OR sarcopenia OR physical disability OR functional disability OR disabled persons
Supplementary Table 2 Risk of bias assessed by JBI s critical appraisal checklist for cohort studies. Answers* Questions 1. Were the groups similar and recruited from the same population? 2. Were the exposures measured similarly to assign people to both exposed and unexposed groups? 3. Was the exposure measured in a valid and reliable way? 4. Were confounding factors identified? 5. Were strategies to address confounding factors stated? 6. Were the groups/particip ants free of the outcome at the start of the study (or at the moment of exposure)? 7. Were the outcomes measured in a valid and reliable way? 8. Was the follow-up time reported and Chan 2015 (48) Chan 2016 (49) Féart 2011 (34) León- Muñoz 2014 (50) Milaneschi 2011 (51) Rahi 2017 (35) Struijk 2016 (52) Talegawkar 2012 (21)
sufficient to be long enough for outcomes to occur? 9. Was follow-up complete, and if not, were the reasons described and explored? 10. Were strategies to address incomplete follow-up utilized? 11. Was appropriate statistical analysis used? *=es, =o Supplementary Table 3 Risk of bias assessed by JBI s critical appraisal checklist for analytical cross-sectional studies. (27) Answer* Question Bollwein 2012 (53) Kelaiditi 2016 (54) Zbeida et al, 2014 (7) 1. Were the criteria for inclusion in the sample clearly defined? 2. Were the study subjects and the setting described in detail? 3. Was the exposure measured in a valid and reliable way? 4. Were objective, standard criteria used for measurement of the condition? 5. Were confounding factors identified? 6. Were strategies to address confounding factors stated? 7. Were the outcomes measured in a valid and reliable way? 8. Was appropriate statistical analysis used? *=es, =o