wan abdul hannan wan ibadullah, nazarudin safian, mohd rizal abdul manaf, mohd 'ammar ihsan ahmad zamzuri, juliana mansor, shamsul azhar shah.  (2023).  cost-effectiveness of community-based hypertension prevention programs: a systematic review.  - international medical journal.  61-68. 

azmawati mohammed nawi, noor azreen masdor, rahayu othman, thinakaran kandayah, norfazilah ahmad, nazaruddin safian.  (2023).  survival rate and prognostic factors of localised prostate cancer in southeast asian countries: a systematic review with meta-analysis.  - asian pacific journal of cancer prevention.  2941-2950. 

thinakaran kandayah , nazarudin safian, shamsul azhar shah, mohd rizal abdul manaf.  (2023).  challenges in the management of sarcopenia in the primary care setting: a scoping review.  - international journal of environmental research and public health.  1-9. 

puteri sofia nadira megat kamaruddin, azmawati mohammed nawi, mohamad nurman yaman, rajiv chowdhury, nazarudin safian, mohd shawal faizal mohamad and abdul muizz abd malek.  (2023).  translation, cross-cultural adaptation, and developing malay questionnaires to measure health empowerment for patients with ischaemic heart disease (ihd): a validation study.  - malaysian journal of public health medicine.  112-123. 

ruslinda mustafar, theepa nesam, lydia kamaruzaman, rozita mohd, norlela sukor, nazarudin safian, arbaiyah ba'in.  (2023).  serum vitamin d levels among immunoglobulin a nephropathy patients and the associated parameters.  - medical journal of malaysia.  86-91. 

mohamed afiq hidayat z, raja zahratul azma rs, darnina aj, azlin i, najiah-ajlaa a, hafiza a, norunaluwar j, alina mf, fook choe cheah, lee sim lim, nazarudin s, malisa moh y, ainoon o.  (2023).  evaluation of quantitative point-of-care test for measurement of glucose-6-phosphate dehydrogenase enzyme activity in malaysia.  - malaysian journal of pathology.  31-41. 

zulkefley mohammad, shamsul azhar shah, nazarudin safian, siti nordiana dollah, siti rohani nurumal.  (2022).  prevalence, risk and protective factors of mild cognitive impairment among male military veterans in malaysia.  - international medical journal.  333-338. 

theepa nesam, ruslinda mustafar, lydia kamaruzaman, rozita mohd, norlela sukor, nasaruddin safian, abdul halim, arbaiyah bain.  (2022).  serum vitamin d level among immunoglobulin a nephropathy patients and it's association with clinical parameters.  - kidney international reports.  S60-S61. 

shamsul azhar shah, megumi rosenberg, dzulfitree ahmad, saharudin ahmad, nazarudin safian, yugo shobugawa.  (2022).  prevalence and determinants of unmet needs for hypertension care among the older population in selangor: cross-sectional study.  - health research policy and systems.  1-14. 

anaanthan bhuvanendran pillai, chin mun wong, noor dalila inche zainal abidin, sharifah fazlinda syed nor, mohd fathulzhafran mohamed hanan, siti rasidah abd ghani, nurul afzan aminuddin, nazarudin safian.  (2022).  chlamydia infection as a risk factor for cervical cancer: a systematic review and meta-analysis.  - iranian journal of public health.  508-517. 

shamsul azhar shah, nazarudin safian, zulkefley mohammad, siti rohani nurumal, wan abdul hannan wan ibadullah, juliana mansor, saharuddin ahmad, mohd rohaizat hassan, yugo shobugawa.  (2022).  factors associated with handgrip strength among older adults in malaysia.  - journal of multidisciplinary healthcare.  1023-1034. 

anaanthan bhuvanendran pillai, nazarudin safian.  (2022).  response comment on "chlamydia infection as a risk factor for cervical cancer: a systematic review and meta-analysis".  - iranian journal of public health.  1442-1443. 

punitha makeswaran, shamsul azhar shah, nazarudin safian, nor asiah muhamad, abdul aziz harith.  (2022).  determinants of delayed tuberculosis treatment among patients in selangor: a study protocol.  - plos one.  1-11. 

md rizal a manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a rahman, hanizah md yusoff, nazarudin safian, pei yuen ng, zahara a manaf, nor bayah a kadir, kevina y, siti munirah a basir, sowmya r, md izhar ariff, kurubaran g.  (2021).  factors associated with health related quality of life amongst employees in a malaysian public university.  - international journal of environmental research and public health.  1-19. 

mohd rizal a. manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a. rahman, hanizah md yusoff, nazaruddin safian, pei yuen ng, zahara a. manaf, nor bayah abd kadir, kevina yanasegaran, siti munirah abd basir, sowmya r., kurubaran g..  (2021).  prevalence of metabolic syndrome and its associated risk factors among staffs in a malaysian public university.  - scientific reports.  1-11. 

safirah jaan jaafar, khamisah awang lukman, nazarudin safian, than myint, swe, mohd rohaizat hassan, rosnah sutan, wong chin mun, mohammad saffree jeffree.  (2021).  unsafe sexual behaviour among hiv-positive msm participating in community-based treatment adherence peer support program.  - malaysian journal of public health medicine.  239-243. 

m rizal a manaf, md al-amin shaharuddin, azmawati md nawi, noorlaili m tauhid, hanita o, m rizam a rahman, hanizah m yusoff, nazarudin safian, pei y n, zahara a manaf, nor bayah a kadir, kevina y, s munirah a basir, sowmya r, m izhar ariff, kurubaran g..  (2021).  perceived symptoms of depression, anxiety and stress amongst staff in a malaysian public university: a workers survey.  - international journal of environmental research and public health.  1-13. 

shamsul azhar shah, nazarudin safian, saharuddin ahmad, wan abdul hannan wan ibadullah, zulkefley bin mohammad , siti rohani nurumal, juliana mansor, mohd fairuz addnan and yugo shobugawa.  (2021).  factors associated with happiness among malaysian elderly.  - international journal of environmental research and public health.  1-11. 

nazarudin safian, shamsul azhar shah, juliana mansor, zulkefley mohammad, siti rohani nurumal, wan abdul hannan wan ibadullah, saharuddin ahmad and yugo shobugawa.  (2021).  factors associated with the need for assistance among the elderly in malaysia.  - international journal of environmental research and public health.  1-14. 

shamsul azhar shah, norzaher ismail, syafiq taib, siti nor mat & nazarudin safian.  (2021).  survival analysis and prognostic factors for prostate cancer patients at universiti kebangsaan malaysia medical centre, kuala lumpur.  - sains malaysiana.  1367-1379. 

mohd farihan md yatim, aishah hani azil, nazarudin safian, ahmad firdaus mohd salleh, mohd khadri shahar.  (2021).  comparative analyses on synthetic membranes for artificial blood feeding of aedes aegypti using digital thermo mosquito blood feeder (ditmof).  - pertanika journal of science & technology.  2073-2086. 

sharifah saffinas syed soffian, nazarudin safian, azmawati mohammed nawi, shahrul bariyah ahmad, huan-keat chan, muhammad radzi abu hassan.  (2021).  rate and associated factors of refusal to perform immunochemical faecal occult blood test (ifobt) among semi-urban communities.  - plos one.  1-11. 

syed sharizman syed abdul rahim, shamsul azhar shah, mohammad saffree jeffree, zahir izuan azhar, mohd rohaizat hassan, nazarudin safian & narinderjeet kaur.  (2020).  factors of acute diarrhoea among children of under five years old in sabah, malaysia: a case-control study.  - indian journal of public health research & development.  865-870. 

syed sharizman syed abdul rahim, shamsul azhar shah, shaharudin idrus, zahir izuan azhar, mohd rohaizat hassan, nazarudin safian.  (2020).  spatial analysis of food and waterborne diseases in sabah, malaysia.  - sains malaysiana.  1627-1638. 

siew wen goh, adawiyah jamil, nazarudin safian, norazirah md nor, norliza muhammad, nur liyana saharudin.  (2020).  a randomized half-body, double blind, controlled trial on the effects of a ph-modified moisturizer vs. standard moisturizer in mild to moderate atopic dermatitis.  - anais brasileiros de dermatologia.  320-325. 

mohd rohaizat hassan, muhammad afham azman, chong li yong, tengku mardhiah tengku nazmi, nurul najwa abdul rashid, wan nur alya shaqeera wan azmi, nazarudin safian, noriah hajib, al-abed ali ahmed al-abed and hasanain faisal ghazi.  (2019).  knowledge and perception towards supplementary immunization activities (sia) among mothers in cheras, kuala lumpur.  - malaysian journal of public health medicine.  126-131. 

mohd fadhli mohd fauzi, hanizah mohd yusoff, mohd rizal abd manaf, nazarudin safian, muhammad aklil abd rahim, mohd faizal madrim, azman atil @ azmi, ammar amsyar abdul haddi and nur adibah mat saruan.  (2019).  intervention for occupational fatigue and sleepiness among healthcare workers working in shift: a systematic review.  - malaysian journal of public health medicine.  47-53. 

mohd fadhli mf, safian n, robat rm, nur adibah ms and hanizah my.  (2018).  needlestick injury cases and adherence to the follow-up protocol among healthcare workers in selangor.  - malaysian journal of public health medicine.  . 

saffree mohammad jeffree, kamruddin ahmed, nazarudin safian, rohaizat hassan, omar mihat, khamisah awang lukman, shamsul bahari shamsudin, fadzilah kamaludin.  (2018).  falciparum malaria outbreak in sabah linked to an immigrant rubber tapper.  - american journal of tropical medicine and hygiene.  45-50. 

mohd rohaizat hassan, mohd fadhli samsuri, shamsul azhar shah, nazarudin safian, zulkifli md zainuddin, hasanain faisal ghazi.  (2017).  prevalence of premature ejaculation and erectile dysfunction and their associated factors among urban and rural population of malaysia.  - malaysian journal of public health medicine.  86-96. 

zahir izuan azhar, ahamad jusoh, syed sharizman syed abdul rahim, mohd rohaizat hassan, nazarudin safian, shamsul azhar shah.  (2016).  temporal spatial distribution of dengue and implications on control in hulu langat, selangor, malaysia.  - dengue bulletin.  19-31. 

mohd rohaizat hassan, m.k.b. muzaitul akma, hasanain faisal ghazi, zaleha md. isa, mohd fadhli samsuri, nazarudin safian and shamsul azhar shah.  (2016).  knowledge, attitude and practice of asthma food taboos and its associated factors among asthmatic patients in pahang state, malaysia.  - pakistan journal of nutrition.  686-692. 

noorsuzana mohd shariff ;nazarudin safian.  (2015).  diabetes mellitus and its influence on sputum smear positivity at the 2nd month of treatment among pulmonary tuberculosis patients in kuala lumpur, malaysia: a case control study.  - international journal of mycobacteriology.  323-329. 

mohd rohaizat hassan ; hasanain faisal ghazi ; nur syazana umar ; norzaleha masri ; sameeha mohd jamil ; zaleha md. isa ; nazarudin safian.  (2015).  knowledge, attitude and practice of healthy eating and associated factors among university students in selangor, malaysia.  - pakistan journal of nutrition.  892-897. 

tiba nezar hasan; shamsul azhar shah;mohd rohaizat hassan; nazarudin safian; zahir azuan azhar;syed sharizman syed abdul rsahim and hasanain faisal ghazi.  (2015).  poor knowledge and practice towards breast cancer among women in baghdad city, iraq.  - asian pacific journal of cancer prevention.  6669-6672. 

shamsul azhar shah, hui-min neoh, syed sharizman syed abdul rahim, zahir izuan azhar, mohd rohaizat hassan, nazarudin safian, rahman jamal.  (2014).  spatial analysis of colorectal cancer cases in kuala lumpur.  - asian pacific journal of cancer prevention.  15(3):1149-1154. 

shamsul as, mohd rohaizat h, muholan k, noor zaiha h, ang wc, sei fs, zulfadli mh, nurul husna ar, azimatun noor a, rozita h, nazarudin s.  (2013).  quality of life and its influencing factors among physically disabled teenagers in kuala lumpur, malaysia.  - malaysian journal of public health medicine.  13(2):11-19. 

shamsul azhar shah, hiroshi suzuki, mohd rohaizat hassan, reiko saito, nazarudin safian & shaharudin idrus.  (2012).  spatial analysis of environmental factors influencing typhoid endemicity in kelantan, malaysia.  - sains malaysiana.  41(7):911-919. 

ramsamy gunasekaran, ,oteh maskon, hamat h. che hassan, nazarudin safian, and rajalingham sakthiswary.  (2012).  left atrial volume index is an independent predictor of major adverse cardiovascular events in acute coronary syndrome.  - canadian journal of cardiology.  28(5):561-566. 

shamsul azhar s,nirmal k, nazarudin s, rohaizat h, azimatun noor a,rozita h.  (2012).  factors influencing childhood immunization defaulters in sabah, malaysia.  - international medical journal malaysia.  11(1):17-22.