Table 1: The summary of included papers.

S No Title Source Authors Aim of the study/paper Publication type Mapping category/ domain Quality assessment
1 Prevalence of dementia in a semi-urban population in Sri Lanka: report from a regional survey Int J Geriatric Psychiatry; 2003; 18: 711 -715 de Silva, HA; Gunatilake, SB; Smith, AD [23] To determine the prevalence of AD and other dementias in a semi-urban elderly Sinhala speaking population Journal Article: Survey Epidemiology Moderate
2 Assessment of the level of care-burden in informal caregivers of patients with dementia SLJ Psychiatry 2015; 6(1): 4 - 8 Abeywickrema, S; Weerasundera, R; Ranasinghe, K [24] 1. To describe the level of care-burden in cares of patients with dementia 2. To explore possible associations between care-burden and other variables such as socio-demographic factors and psychiatric morbidity Journal Article: Descriptive study Caregiving (Carer burden) High
3 Dementia care: Issues and challenges in a developing Asian country Asian Journal of Psychiatry; 2011; 4(S18_01) Williams, S [25] To describe the issues and challenges of current dementia care services in Sri Lanka Conference Abstract: Opinion paper Management of dementia (Issues and challenges of dementia care) Low
4 Sharing skills in dementia care with staff overseas Nursing Older People; 2014; 26(4): 35 -39 Marcal- Grilo, J [26] To share the author’s experience in volunteering in a mental health care setting in Sri Lanka Journal Article: Opinion paper Management of dementia and caregiving (Care skills among nurses) Moderate
5 Efficacy of rivastigmine on activities of daily living in Sri Lankan patients with Alzheimer disease and on improving caregiver burden: a prospective study The Ceylon Medical Journal; 2005; 50(3): 106-109 de Silva HA; Pathmeswaran A; Gunatilake SB [27] To investigate the efficacy of Rivastigmine treatment on activities of daily living in patients with mild to moderate AD and possible benefits of this therapy on caregiver stress levels Journal Article: Prospective cohort Study Management of dementia (Treatment) and caregiving (Carer burden) High
6 Alzheimer’s disease—time to act is now The Ceylon Medical Journal; 2005; 50(1): 1-4 de Silva, HA [28] To highlight the timely need of starting a national programme to tackle dementia in Sri Lanka Journal Article: Opinion paper Management of dementia Low
7 Medial temporal lobe atrophy, apolipoprotein genotype, and plasma homocysteine in Sri Lankan patients with Alzheimer's disease Experimental Ageing Research; 2005; 31(3): 345-354 de Silva HA; Gunatilake SB; Johnston C; et al. [29] To study the association of AD with the total plasma homocysteine and apolipoprotein E genotype To study the usefulness of measuring medial temporal lobe thickness for the diagnosis of AD Journal Article: Case-control study Pathophysiology Screening Moderate
8 Cytoskeletal pathologies of age-related diseases between elderly Sri Lankan (Colombo) and Indian (Bangalore) brain samples Current Alzheimer Research; Mar 2016; 13(3): 268-280 Wijesinghe, P; De Silva, KRD; Shankar, SK; et al. [30] To compare ageing cytoskeletal pathologies between in India and Sri Lanka using autopsy brain samples of elderly Journal Article: Experimental design Pathophysiology Moderate
9 Vascular risk factors in manifestation of Alzheimer’s disease related neuropathological changes: First autopsy and genetic evidence from a South Asian ageing population Journal of Cerebral Blood Flow and Metabolism 2017; 37(1S): 196 -197 Wijesinghe, P; Shankar, SK; Yasha, TC; De Silva, KRD [31] To investigate vascular risk factors associated with determining the aetiology of sporadic AD Conference proceedings: Abstract (Poster viewing session II-(PS02-045) Pathophysiology Moderate
10 Mini Mental State Examination in Sinhalese: A sensitive test to screen for dementia in Sri Lanka International Journal of Geriatric Psychiatry; 2002; 17(2): 134-139 de Silva, HA; Gunatilake, SB [32] To develop and validate a Sinhala translation of the Mini Mental State Examination (MMSE) Journal Article Evidence of epidemiology and screening (Instrument validation) High
11 Norms for the mini-mental state examination from an elderly Sri Lankan sample. Int J Geriatr Psychiatry 2009, 24:666-670 De Silva, R; Disanayaka, S; De Zoysa N; et al. [33] To derive norms for the MMSE based on age, gender and level of formal education among the elderly in Sri Lanka Journal Article Screening (Instrument validation) High
12 Norms for a neuropsychological test battery to diagnose dementia in the elderly: A study from Sri Lanka Journal of Neurosciences in Rural Practice; 2015; 6(2): 177-181 Srinivasan, S; Jaleel, Q[34] To pilot a neurosurgical battery and provide norms stratified by demographic variables such as age and level of education Journal Article Screening (Instrument validation) High
13 Validation of the Sinhala version of the Montreal Cognitive Assessment in Screening for Dementia Ceylon Medical Journal, 2011; 56(4): 147 - 153 Karunaratne, S; Hanwella, R; de Silva, VA[35] To validate the Sinhala version of the Montreal Cognitive Assessment (MoCA) scale in screening for dementia Journal Article Screening (Instrument validation) High
14 Validation of a functional screening instrument for dementia in an elderly Sri Lankan population: comparison of modified Bristol and Blessed activities of daily living scales. BMC research notes; 2010; 3(1): 268 Umayal, S; Kulathunga, M; Somaratne, S; et al. [36] To validate activities of daily living (ADL) scale appropriate for use in assessing the presence of dementia in an elderly population living in care homes in Sri Lanka Journal Article Screening (Instrument validation) High
15 Comparison of three instruments used in the assessment of dementia in Sri Lanka. Indian journal of psychiatry; 2005; 47(2): 109-112 Kathriarachchi, ST; Sivayogan, S; Jayaratna, SD; Dharmasena, SR [37] To compare the use of MMSE, IQCODE and CDR in the assessment of patients with dementia in Sri Lanka Journal Article Screening (Instrument validation) High
16 Prevalence of mild cognitive impairment and its selected correlates among elders in Jaffna district: A mixed-method Study Dissertation and Theses, PGIM; 2015; (D 3959) Coonghe, P.A.D [38] To adapt, translate and validate the Tamil version of the MoCA scale and MMSE in screening for MCI To design a tool for identifying MCI among the elderly in a community setting Dissertation submitted to the degree of MD (Community Medicine) Epidemiology (include a qualitative assessment) Screening (Instrument validation of MMSE and MoCA Tamil versions) Moderate
17 Alzheimer's disease in Sri Lanka Journal of the Ceylon College of Physicians, 2003, 36: 14-26 de Silva, HA [39] To report the author’s work on cognitive impairment and dementia for E V Peiris Memorial Oration. Journal article: Oration Paper Epidemiology Management of dementia Screening (Instrument translation and validation) Moderate
18 Medications used in dementia: a review of evidence SL J Psychiatry 2015; 6(2): 3-8 Suraweera, C; Hanwella, R; de Silva, VA [40] To review the evidence regarding the efficacy of cholinesterase inhibitors, memantine and antipsychotics, in the treatment of dementia Journal Article Treatment Low
19 Rating scales validated for Sri Lankan populations SL J Psychiatry 2013; 4(2): 16-24 Suraweera, C; Hanwella, R; Sivayokan, R; de Silva VA [41] To identify scales which have been translated into Sinhala or Tamil and validated in a Sri Lankan population. Journal Article: Literature review Screening (Instrument translation and validation) Low
20 Validation of the Sinhala version of the Repeatable Battery for Assessment of Neuropsychological Status (RBANS) Ceylon Medical Journal 2016; 61: 163-170 Suraweera CU; Anandakumar D; Dahanayake D; et al. [42] To culturally adapt RBANS and investigate the validity and reliability of culturally adapted RBANS (RBANS-S) Journal Article Screening (Instrument validation) High
21 Prevalence of behavioural and psychological symptoms of dementia and its association with the degree of cognitive impairment in patients presenting to the National Institute of Mental Health, Sri Lanka SL J Psychiatry 2016; 7(1): 4-8 Dahanayake, DMA; Isuru, LLA; Aththanayake, NNK; et al. [43] To describe the patterns of BPSD among patients admitted to the National Institute of Mental Health (NIMH), Sri Lanka and its association with the degree of cognitive impairment. Journal Article: Cross-sectional descriptive study Epidemiology Moderate
22 Reasons for encounter and existing medical and psychosocial problems of geriatric patients in a general practice Dissertation and Theses, PGIM_ Colombo 2004; (D 7663) Ramanayaka, RPJC [44] To explore the reasons for medical and psychological problems of elderly patents in an outpatient clinic Dissertation submitted to the degree of MD (Community Medicine Screening (for dementia) Moderate
23 A critical drug review of ingredients of Sarasvatha choorna: used as a remedy for dementia Journal of Innovations in Pharmaceutical and Biological Sciences (JIPBS) 2017; 4(3): 43-47 Karunaratne, TDN; Sugataratana, K; Ariyawansa HAS; de Silva, HA [45] To review the efficacy of ingredients of an Ayurvedic medication called ‘ Sarasvatha Choorna’ in the management of dementia Journal Article: Review Management of dementia/ Care models Moderate
24 Standardization of Sarasvatha Choorna : Used as a remedy for dementia American Journal of Clinical and Experimental Medicine 2015; 3(5): 288-292 Karunaratne, TDN; Sugataratana, K; Ariyawansa, HAS; et al. [46] To standardise Sarasvatha Choorna by using standard protocols Journal Article: Experimental design Dementia care models Moderate
25 The frequency of cognitive dysfunction in elderly Sri Lankans with type 2 diabetes mellitus International Journal of Geriatric Psychiatry 2008; 23: 1205-1206 Rajakumaraswamy, N; Rajapakse, IH; Fernando, DJS [47] To study the frequency of cognitive dysfunction among elderly Sri Lankans with type 2 diabetes Journal Article: Research letter Epidemiology Screening instruments Low
26 Relationship between increased risk of falling and cognitive impairment in residents of an elderly home in the Colombo district Ceylon Medical Journal 2014; 59: 21-23 Thanthrige, RS; Dassanayake, S; Dissanayake, D [48] To examine cognitive impairments and evaluate the association between such impairment and risk of falling among a group of residents of an elderly home Journal Article: Brief report Screening Low
27 Cognitive impairment and symptoms of depression among geriatric patients in a tertiary care unit in Sri Lanka Indian Journal of Psychiatry 2010; 52(3): 279-280 Rodrigo, C; Perera, S; Adhikari, M; Rajapakse, A; Rajapakse, S [49] To assess the impact of educational level and social support on cognitive impairment Journal Article: Letter to editor (Opinion paper) Epidemiology Screening Care models Low
28 Care of the elderly: a multidisciplinary approach Journal of the Ceylon College of Physicians, 2014, 45: 45-48 Samaraweera, DN [50] To describe the importance of care of elderly and mental status screening in routine elders’ clinic in Medirigiriya area (A case vignette) Journal Article: Opinion paper Screening Low