mohamad habibullah, nur nadia; shahar, suzana; ismail, munirah; ibrahim, norhayati; kamaruddin, mohd zul amin; tang, shirley gee hoon; hamid, mohd faisal abdul; ramasamy, kalavathy.  (2025).  efficacy of yeast beta-glucan 1,3/1,6 supplementation on respiratory infection, fatigue, immune markers and gut health among moderate stress adults in klang valley of malaysia: protocol for a randomised, double-blinded, placebo-controlled, parallel-group .  - bmj open.  1 - 10. 

pavapriya ponvel, suzana shahar, devinder kaur ajit singh, arimi fitri mat ludin, ponnusamy subramaniam, norhayati ibrahim, hasnah haron, aniza ismail, chin ai-vyrn, mazlyfarina mohamad, nurul hidayah md fadzil, norhayati mustafa khalid, a’isyah mohd safien, jamilah mohammad hanipah, azyana ibrahim, jenni lehtisalo, miia kivipelto & francesca mangialasche.  (2025).  the cost effectiveness of a multidomain intervention on physical, cognitive, vascular, dietary and psychosocial outcomes among community dwelling older adults with cognitive frailty in malaysia: the ageless trial.  - alzheimer's research & therapy.  1 - 23. 

lea waters, marco weber, sholpan alimova, andrea amado, choy qing cham, wei-wen chen, ana paula durán, rafael gargurevich, lyudmila gitikhmayeva, soi kei ho, norhayati ibrahim, clarisse roswini kalaman, ayat abu kheit, linda huld loftsdóttir, daniel loton, pamela nuñez del prado, yalçin Özdemir, tammie ronen rosenbaum, marina ryabova, ali serdar sagkal, adil samekin, yan-li siaw, ching sin siau, liliya sultanova, agnes maria sumargi, sara tosti, amira najiha yahya & claudia zavala .  (2025).  psychometric evaluation of the strength-based parenting questionnaire and comparison of perceived strength-based parenting in collectivistic and individualistic cultures.  - journal of happiness studies.  1 - 30. 

dayang balkis ramliid, suzana shahar, sumaiyah mat, norhayati ibrahim, noorlaili mohd tohit.  (2024).  the effectiveness of preventive home visits on resilience and health-related outcomes among community dwelling older adults: a systematic review.  - plos one.  1 - 36. 

yee kee tan, ching sin siau, norhayati ibrahim, kairi kolves, jie zhang, caryn mei hsien chan, meng chuan ho, chun hong gan, noh amit, nurul syasya mohd ridzwan goh, lai fong chan.  (2024).  validation of the malay version of the patient health questionnaire-4 (phq-4) among malaysian undergraduates.  - asian journal of psychiatry.  1 - 5. 

azianah mohamad ibrahim, devinder kaur ajit singh, arimi fitri mat ludin, ponnusamy subramaniam, chin ai -vyrn, norhayati ibrahim, hasnah haron, aisyah mohd safien, norhayati mustafa khalid, pavapriya ponvel, nurul hidayah md fadzil, jamilah mohammad hanipah, francesca mangialasche, miia kivipelto, & suzana shahar.  (2024).  multidomain intervention for the reversal of cognitive frailty using a personalized approach (ageless trial): recruitment and baseline characteristics of participants.  - the journal of prevention of alzheimer's disease .  1291 - 1306. 

rozmi ismail, nurul shafini shafurdin, md shafiin shukor, azmawati mohammed nawi, mohd rizal abdul manaf, norhayati ibrahim, roziah mohd rasdi, novel anak lyndon, noh amit, siti aishah hassan,norshafizah hanafi, fauziah ibrahim, fatimah nahla, suzaily wah.  (2024).  predictors of drug and substance abuse among school-going adolescents living in drug hotspot in malaysia.  - plos one.  1-18. 

choy qing cham , norhayati ibrahim, clarisse roswini kalaman,meng chuan ho, uma visvalingam, farah ahmad shahabuddin,fairuz nazri abd rahman, mohd radzi tarmizi a. halim, manveen kaur harbajan singh, fatin liyana azhar, amira najih, samsilah roslan, chin.  (2024).  factors associated with depression, anxiety, and satisfaction with life among malaysian parental caregivers of adolescent psychiatric patients: a cross-sectional study.  - cambridge prisms: global mental health.  1-12. 

aisyah mohd safien, norhayati ibrahim, ponnusamy subramaniam, devinder kaur ajit singh, arimi fitri mat ludin, ai- vyrn chin and suzana shahar.  (2024).  prevalence of depression and clinical depressive symptoms in community dwelling older adults with cognitive frailty.  - geriatrics & gerontology international.  225-233. 

ching sin siau, yee kee tan, norhayati ibrahim, kairi kõlves, jie zhang, muhamad nur fariduddin, bee seok chua, whye lian cheah, sharifah munirah syed elias, siti nazilah mat ali, serena in, alex lian sheng lim, geetha subramaniam, walton wider, sherina mohd sidik, siew tin tan, bob lew, lai fong chan.  (2024).  psychometric properties of the malay suicidal behaviors questionnaire-revised (sbq-r) in malaysian undergraduates.  - behavioral sciences.  1 - 13. 

clarisse roswini kalaman, norhayati ibrahim, choy qing cham, meng chuan ho, uma visvalingam, fairuz nazri abdul rahman, farah ahmad shahabuddin, mohd radzi tarmizi a halim, ching sin siau.  (2024).  challenges and strategies for improving medication adherence among adolescent psychiatric patients: a qualitative study.  - cambridge prisms: global mental health.  1 - 11. 

clarisse roswini kalaman, norhayati ibrahim, vinorra shaker, choy qing cham, meng ch, uma visvalingam, farah as, fairuz nazri abd rahman, mohd radzi tah, manveen k, fatin la amira najiha yahya, rohana sham, ching sin siau, kai wei lee.  (2023).  parental factors associated with child or adolescent medication adherence: a systematic review.  - healthcare.  1-32. 

woan yin tan, nur hana hamzaid, norhayati ibrahim.  (2023).  parental perceptions on the importance of nutrients for children with autism spectrum disorder (asd) and the coping strategies: a qualitative study.  - nutrients.  1-21. 

ching sin siau, caryn mei hsien chan, lei hum wee, suzaily wahab, uma visvalingam, won sun chen, seen heng yeoh, jing ni tee, lena lay ling yeap , and norhayati ibrahim.  (2023).  depression and anxiety predict healthcare workers` understanding of and willingness to help suicide attempt patients.  - omega - journal of death and dying.  469-484. 

sin yee chu , norhayati ibrahim, noh amit, abdul halim abdul gafor, rozmi ismail, kai wei lee, and ching sin siau.  (2023).  interventions to reduce caregiver burden among caregivers of chronic kidney disease (ckd) patients: a scoping review.  - sage open.  1-17. 

yee kee tan, ching sin siau, lai fong chan, kairi kõlves, jie zhang, meng chuan ho, bee seok chua, rose manisah sulong, suzanna a. bono, mimi fitriana, abdul latiff bin hj jamaludin, norfaizadatul akma binti mohamad maswan, amira.  (2023).  validation of the malay version of the life events checklist for dsm-5 among malaysian undergraduates.  - asian journal of psychiatry.  1-5. 

bob lew, kairi kõlves, david lester, won sun chen, nurashikin bt ibrahim, noor raihan bt khamal, feisul mustapha, caryn mei hsien chan, norhayati ibrahim, ching sin siau and lai fong chan.  (2022).  looking into recent suicide rates and trends in malaysia: a comparative analysis.  - frontiers in psychiatry.  1-11. 

nurul hidayah md fadzil, suzana shahar, roslee rajikan, devinder kaur ajit singh, arimi fitri mat ludin, ponnusamy subramaniam, norhayati ibrahim, divya vanoh, and nazlena mohamad ali.  (2022).  a scoping review for usage of telerehabilitation among older adults with mild cognitive impairment or cognitive frailty.  - international journal of environmental research and public health.  1-14. 

rozmi ismail, mohd rizal abdul manaf, mohd rohaizat hassan, azmawati mohammed nawi, norhayati ibrahim, novel lyndon, noh amit, ezarina zakaria, muhammad ajib abd razak, norshaffika izzaty zaiedy nor, md shafiin shukor, aimi fadzirul kamarubahrin..  (2022).  prevalence of drug and substance use among malaysian youth: a nationwide survey.  - international journal of environmental research and public health.  1-15. 

bob lew [and twenty one others]..  (2022).  an analysis of age standardized suicide rates in muslim majority countries in 2000 2019.  - bmc public health.  1-18. 

norhayati ibrahim, sin yee chu ,ching sin siau ,noh amit, rozmi ismail, abdul halim abdul gafor.  (2022).  the effects of psychosocial and economic factors on the quality of life of patients with end-stage renal disease and their caregivers in klang valley, malaysia: protocol for a mixed-methods study.  - bmj open.  1-10. 

bob lew, david lester, feisul idzwan mustapha, paul yip, ying-yeh chen, ravivarma rao panirselvam, astrid sinarti hassan, serena in, lai fong chan, norhayati ibrahim, caryn mei hsien chan & ching sin siau.  (2022).  decriminalizing suicide attempt in the 21st century: an examination of suicide rates in countries that penalize suicide, a critical review.  - bmc psychiatry.  1-11. 

nurul fatin malek rivan, suzana shahar, devinder kaur ajit singh, norhayati ibrahim, arimi fitri mat ludin, hanis mastura yahya, noor ibrahim mohamed sakian, hazlina mahadzir, ponnusamy subramaniam & mohd zul amin kamaruddin.  (2022).  mediation effect of coping strategies on general psychological health among middle-aged and older adults during the covid-19 pandemic.  - aging & mental health.  2039-2047. 

ridho roqwan ikbar, noh amit, ponnusamy subramaniam, norhayati ibrahim.  (2022).  relationship between self-efficacy, adversity quotient, covid-19-related stress and academic performance among the undergraduate students: a protocol for a systematic review.  - plos one.  1-11. 

choy qing cham, norhayati ibrahim, ching sin siau, clarisse roswini kalaman, meng chuan ho, amira najiha yahya, uma visvalingam, samsilah roslan, fairuz nazri abd rahman, kai wei lee.  (2022).  caregiver burden among caregivers of patients with mental illness: a systematic review and meta-analysis.  - healthcare.  1-16. 

nurul fatin malek rivan, hanis mastura yahya, suzana shahar, devinder kaur ajit singh, norhayati ibrahim, arimi fitri mat ludin, noor ibrahim mohamed sakian, hazlina mahadzir, ponnusamy subramaniam, mohd zul amin kamaruddin.  (2021).  the impact of poor nutrient intakes and food insecurity on the psychological distress among community-dwelling middle-aged and older adults during the covid-19 pandemic.  - nutrients.  1-12. 

bob lew, augustine osman, caryn mei hsien chan, won sun chen, norhayati ibrahim, cun-xian jia & ching sin siau.  (2021).  psychological characteristics of suicide attempters among undergraduate college students in china: a cross-sectional study.  - bmc public health.  1-8. 

pavapriya ponvel, suzana shahar, devinder kaur ajit singh, arimi fitri mat ludin, roslee rajikan, nor fadilah rajab, chin ai-vyrn, normah che din, norhayati ibrahim,ponnusamy subramaniam, hasnah haron, aniza ismail, razinah sharif, kalavaty ramasamy,.  (2021).  multidomain intervention for reversal of cognitive frailty, towards a personalized approach (ageless trial): study design.  - journal of alzheimers disease.  673-687. 

azmawati mohammed nawi, rozmi ismail, fauziah ibrahim, mohd rohaizat hassan, mohd rizal abdul manaf, noh amit, norhayati ibrahim and nurul shafini shafurdin.  (2021).  risk and protective factors of drug abuse among adolescents: a systematic review.  - bmc public health.  1-15. 

noh amit, rozmi ismail, abdul rahim zumrah, mohd azmir mohd nizah, tengku elmi azlina tengku muda, edbert chia tat meng, norhayati ibrahim, normah che din.  (2020).  relationship between debt and depression, anxiety, stress or suicide ideation in asia: a systematic review.  - frontiers in psychology.  1-17. 

bob lew, kairi kolves, augustine osman, mansor abu talib, norhayati ibrahim, ching sin siau, caryn mei hsien chan.  (2020).  suicidality among chinese college students: a cross-sectional study across seven provinces.  - plos one.  1-13. 

mahadir ahmad , nur syafiqa balqis md. din , ruthra devi tharumalay , normah che din ,norhayati ibrahim , noh amit , nor mf farah, rose azzlinda osman, mohamed faisal abdul hamid, ibnor azli ibrahim, ezad azraai jamsari, mohd rizal palil & sha'ari ahmad.  (2020).  the effects of circadian rhythm disruption on mental health and physiological responses among shift workers and general population.  - international journal of environmental research & public health.  1-16. 

norhayati ibrahim, normah che din, noh amit, shazli ezzat ghazali, aisyah mohd safien.  (2019).  development and validation of yatt suicide attitude scale (ysas) in malaysia.  - plos one.  . 

norhayati ibrahim, normah che din, mahadir ahmad, noh amit, shazli ezzat ghazali, suzaily wahab, nor ba'yah abdul kadir, fatimah wati halim, mohd radzi tarmizi a. halim.  (2019).  the role of social support and spiritual wellbeing in predicting suicidal ideation among marginalized adolescents in malaysia.  - bmc public health.  1-8. 

norhayati ibrahim, noh amit, suzana shahar, lei-hum wee, rozmi ismail, rozainee khairuddin, ching sin siau, aisyah mohd safien.  (2019).  do depression literacy,mental illness beliefs & stigma influence mental health help-seeking attitude?a cross-sectional study of secondary school and university students from b40 households in malaysia.  - bmc public health.  1-8. 

normah che din, liana mohd nawi, shazli ezzat ghazali, mahadir ahmad, norhayati ibrahim, zaini said, noh amit and ponnusamy subramaniam.  (2019).  preliminary analysis of the factor structure, reliability and validity of an obsessive-compulsive disorder screening tool for use with adults in malaysia.  - international journal of environmental research and public health.  1-11. 

norhayati ibrahim, hui chien 0ng, suzaily abd wahab, normah che din, mahadir ahmad, noh amit, mohd suhaimi mohamad.  (2016).  psychological wellbeing among caregivers of schizophrenia patients in malaysia.  - international journal of psychology.  678-679. 

rozmi ismail, norhayati ibrahim.  (2016).  socio-demographic and psychological profile of illegal street motorcycle racing offenders in malaysia.  - international journal of psychology.  1147. 

norhayati ibrahim, sharleen sl teo, normah che din, abdul halim abdul ghafor rozmi ismail.  (2015).  the role of personality and social support in health-realated quality of life in chronic kidney disease patients.  - plos one.  1-11. 

rosdinom razali, lim jean-li, aida jaffar, mahadir ahmad, shamsul azhar shah, norhayati ibrahim, normah che din, nik ruzyanei nik jaafar, marhani midin, hatta sidi, saharudin ahmad.  (2014).  is the bahasa malaysia version of the montreal cognitive assessment (moca-bm) a better instrument than the malay version of the mini mental state examination (m-mmse) in screening for mild cognitive i.  - comprehensive psychiatry.  55(S1):S70-S75. 

norhayati ibrahim, noh amit, and melia wong yuin suen.  (2014).  psychological factors as predictors of suicidal ideation among adolescents in malaysia.  - plos one.  1-6.