Displaying publications 21 - 40 of 355 in total

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  1. Urbanization and physical activity in the global Prospective Urban and Rural Epidemiology study
    Boakye K, Bovbjerg M, Schuna J, Branscum A, Varma RP, Ismail R, et al.
    Sci Rep, 2023 Jan 06;13(1):290.
    PMID: 36609613 DOI: 10.1038/s41598-022-26406-5
    Urbanization may influence physical activity (PA) levels, although little evidence is available for low- and middle- income countries where urbanization is occurring fastest. We evaluated associations between urbanization and total PA, as well as work-, leisure-, home-, and transport-specific PA, for 138,206 adults living in 698 communities across 22 countries within the Prospective Urban and Rural Epidemiology (PURE) study. The 1-week long-form International PA Questionnaire was administered at baseline (2003-2015). We used satellite-derived population density and impervious surface area estimates to quantify baseline urbanization levels for study communities, as well as change measures for 5- and 10-years prior to PA surveys. We used generalized linear mixed effects models to examine associations between urbanization measures and PA levels, controlling for individual, household and community factors. Higher community baseline levels of population density (- 12.4% per IQR, 95% CI - 16.0, - 8.7) and impervious surface area (- 29.2% per IQR, 95% CI - 37.5, - 19.7), as well as the rate of change in 5-year population density (- 17.2% per IQR, 95% CI - 25.7, - 7.7), were associated with lower total PA levels. Important differences in the associations between urbanization and PA were observed between PA domains, country-income levels, urban/rural status, and sex. These findings provide new information on the complex associations between urbanization and PA.
    Matched MeSH terms: Urban Population
  2. Fulltext Determination of Leptospira borgpetersenii serovar Javanica and Leptospira interrogans serovar Bataviae as the persistent Leptospira serovars circulating in the urban rat populations in Peninsular Malaysia
    Benacer D, Mohd Zain SN, Sim SZ, Mohd Khalid MK, Galloway RL, Souris M, et al.
    Parasit Vectors, 2016;9:117.
    PMID: 26927873 DOI: 10.1186/s13071-016-1400-1
    Leptospirosis is an emerging infectious disease of global significance, and is endemic in tropical countries, including Malaysia. Over the last decade, a dramatic increase of human cases was reported; however, information on the primary vector, the rat, and the Leptospira serovars circulating among the rat population is limited. Therefore, the present study was undertaken to isolate Leptospira and characterise the serovars circulating in the urban rat populations from selected main cities in Peninsular Malaysia.
    Matched MeSH terms: Urban Population
  3. Fulltext Breeding of Aedes aegypti (L.) and Aedes albopictus (Skuse) in urban housing of Sibu town, Sarawak
    Chang MS, Jute N
    Southeast Asian J. Trop. Med. Public Health, 1994 Sep;25(3):543-8.
    PMID: 7777923
    An Aedes survey using various larval survey methods was conducted in 12 urban housing areas and 29 vacant lands in Sibu town proper. Aedes albopictus larvae were found in all areas surveyed while Aedes aegypti larvae were present in 10 localities and 4 vacant lands. There were no significant difference in the house index, breteau and larval density index of these two Aedes (Stegomyia) species from the survey areas. The proportion of containers positive with Ae. aegypti and Ae. albopictus in area outside the house compound and near the house fencing were 3.2 times higher than outdoor compound. The indoor/outdoor breeding ratio for Ae. aegypti alone is 1.6:1. The most preferred breeding habitats outdoor were plastic cups and used tires while indoor habitats were ant traps and flower vases. In the vacant lands, the average number of larvae per containers was significantly higher than in houses and over 51% of the containers inspected were positive. Shared breeding between Ae. aegypti and Ae. albopictus larvae accounted for 9% in house surveys and 4.5% in vacant land survey. The use of various methods in Aedes larval survey may provide essential information in the study of vector epidemiology in dengue and dengue hemorrhagic fever transmission.
    Matched MeSH terms: Urban Population
  4. Urbanization of the Malays since independence: evidence from West Malaysia, 1957 and 1970
    Rimmer PJ, Cho GC
    J Southeast Asian Stud, 1981 Sep;12(2):349-63.
    PMID: 12312310
    Matched MeSH terms: Urban Population
  5. Blood cadmium levels in Malaysian pregnant women
    Lim HH, Ong CN, Domala Z, Phoon WO
    Southeast Asian J. Trop. Med. Public Health, 1983 Sep;14(3):394-8.
    PMID: 6658508
    Blood cadmium levels in Malaysian pregnant women were determined. There was no significant urban-rural difference in mean blood cadmium levels.
    Matched MeSH terms: Urban Population
  6. Lead concentrations in breast milk of Malaysian urban and rural mothers
    Huat LH, Zakariya D, Eng KH
    Arch. Environ. Health, 1983 7 1;38(4):205-9.
    PMID: 6614999
    This study was conducted to determine lead concentrations in breast milk among urban and rural mothers in Malaysia, and to determine if lead absorption among urban maternal populations in Malaysia poses a potential health hazard to infants through breastfeeding. Milk samples, which were collected from 89 urban and 91 rural mothers, were analyzed by flameless atomic absorption spectrophotometry. The mean lead level in urban samples was 0.0253 microgram/ml, which was significantly higher than that of the rural samples (0.0211 microgram/ml). The estimated daily lead intake of breast-fed infants in Malaysia was well below proposed tolerable levels. There also appeared to be no specific pattern in the milk lead levels at different periods of lactation. The significance of the higher milk lead concentrations in urban mothers is also discussed.
    Matched MeSH terms: Urban Population
  7. Maternal mortality amongst the rural Malays
    Yusof K
    Med J Malaysia, 1974 Mar;28(3):149-53.
    PMID: 4278186
    Matched MeSH terms: Urban Population
  8. Fulltext Physical, Psychological, and Social Health Impact of Temperature Rise Due to Urban Heat Island Phenomenon and Its Associated Factors
    Wong LP, Alias H, Aghamohammadi N, Aghazadeh S, Nik Sulaiman NM
    Biomed Environ Sci, 2018 Jul;31(7):545-550.
    PMID: 30145991 DOI: 10.3967/bes2018.074
    Matched MeSH terms: Urban Population
  9. Environmental heat-related health symptoms among community in a tropical city
    Aghamohammadi N, Fong CS, Idrus MHM, Ramakreshnan L, Sulaiman NM
    Sci Total Environ, 2021 Aug 15;782:146611.
    PMID: 33838362 DOI: 10.1016/j.scitotenv.2021.146611
    Due to the changing climate, more frequent and prolonged heatwaves are expected to have a catastrophic consequence on urban human settlement. In tropical cities such as Kuala Lumpur (KL), the quality of the urban environment is made worse by urban heat island (UHI) phenomena due to poor urban planning practices. The prolonged exposure to urban heat is hypothesized to influence human health and well-being, especially in tropical urban areas with high population density. Therefore, a study was conducted to understand the association of urban heat stress with physical, psychosomatic and psychological (PPP) health symptoms within a tropical urban setting. Continuous urban microclimate monitoring is conducted using an automated weather station to define the level of heat stress in the study area expressed as Physiological Equivalent Temperature (PET). A cross-sectional approach is used to identify heat-related health symptoms experienced by the urban population. Through exploratory factor analysis, a total of 38 PPP health symptoms are reduced into 8 heat-related health clusters which are sensory organ pain, heat-related illnesses, cardiopulmonary, pain, fatigue, anxiety, somatization, and depression-related symptoms. Heat stress was found to significantly affect psychosomatic pain (p = 0.016) as well as psychological anxiety (p = 0.022) and somatization (p = 0.041) related symptoms. Other health clusters were not significantly associated with heat stress. More studies are needed to unravel the influence of confounding factors and the long-term impact of urban heat on the health and well-being of the urban population in a tropical city.
    Matched MeSH terms: Urban Population
  10. Fulltext Obesity among years 1 and 6 primary school children in Selangor Darul Ehsan
    Bong ASL, Jaafar S
    Malays J Nutr, 1996 Mar;2(1):21-7.
    PMID: 22692098 MyJurnal
    A study was conducted from March to June 1991 to determine the prevalence of obesity among primary school children in the State of Selangor. One School Health Team in each of the 9 Districts of Selangor participated in the collection of data, the whole project being coordinated by the Selangor State Health Department. A total of 28 rural and 24 urban schools were selected for the study, involving a total of 2,688 pupils in Standard 1 and Standard 6. The prevalence of obesity, using >120% of the reference weight-for-height as the criteria, varied considerably in the different districts, with an overall prevalence of 7.8% in the State. The proportion of boys affected (66.7%) was twice that among girls (33.3%). The prevalence of obesity of 9.8% in the urban schools was significantly higher than the 6.1% found for rural schools (p<0.0001). 151 (11.1%) were from Standard 6 and 59 (4.4%) were from Standard 1 (p<0.0001). It was also found that there was a significantly higher prevalence of obesity amongst primary 6 children (p<0.0001). Whilst the problem may not be as serious as that found in developed countries, the findings of this study should serve as an early warning to health authorities of the seriousness of the problem.
    Matched MeSH terms: Urban Population
  11. Fulltext Antenatal iron deficiency in an urban Malaysian population
    Mahdy, Z.A., Rahana, A.R., Zaleha, M.I., Muhammad Za’im, S.H., Mukudan, K., Jumaida, A.B.
    Medicine & Health, 2017;12(1):27-33.
    MyJurnal
    Iron deficiency anemia is the most common form of anemia in pregnancy. The present study was carried out to determine the prevalence of antenatal anemia and iron deficiency in the Malaysian population and its correlation with sociodemographic and obstetric profile. It was a cross-sectional study conducted at an urban health clinic over a period of six months. A single blood sample was drawn from apparently healthy pregnant mothers at antenatal booking and sent for laboratory assessment of full blood count and serum ferritin as screening tools for anemia and iron status. SPSS version 19.0 was used for statistical analyses. The results showed that out of 250 subjects, 43.6% had anemia and 31.6% had iron deficiency. Whilst 47.7% of subjects with anemia were iron deficient, 19.1% of subjects without anemia were also iron deficient. Serum ferritin correlated negatively with period of gestation at booking (p<0.001), with 77.6% of these women not having prior iron supplements. Serum ferritin was also significantly lower among grandmultiparae (p=0.01). Iron deficiency was significantly (p=0.024) more common among Indians (42.5%) compared to Malays (33.5%) and Chinese (13.0%). In conclusion, continuation of the current practice of routine antenatal iron supplementation is still warranted and justifiable in Malaysia as there is high prevalence of iron deficiency in pregnancy not only in the presence of anemia but also in the presence of normal hemoglobin values. Keywords: anaemia, ferritn, pregnancy
    Matched MeSH terms: Urban Population
  12. Dyslipidaemias in the Malaysian population [Abstract]
    Mohd Nawawi H, Abdul Rahman T, Mohd Ismail A, Ismail TS, Ramli AS, Yusoff K, et al.
    J Hypertens, 2012;30:e196.
    DOI: 10.1097/01.hjh.0000420656.24296.e4
    Background: Coronary artery disease (CAD) is the leading cause of mortality globally, primarily attributed by atherosclerosis, of which dyslipidaemia is one of the main risk factors. There is limited data in Malaysia on the prevalence and awareness of having dyslipidaemia, and the proportion who are treated.
    Objectives: To investigate the prevalence of (1)dyslipidaemia; (2)awareness of dyslipidaemia and (3)subjects with dyslipidaemia who are treated.
    Methodology: This was a cross-sectional study involving 11,525 Malaysian subjects from various rural and urban populations, with representations from the three major ethnic groups (age mean + SD: 52.6 + 11.3years; 6487 females, 5038 males). Clinical history and physical examinations were performed and fasting blood samples were collected for the measurement of lipid profiles. Dyslipidaemia was defined by mild, moderate or severe hypercholesterolaemia(HC):TC > 5.2, 6.5 and 7.8mmol/L respectively, or hypertriglyceridaemia (HTG):TG > 1.7 mmol/L, or low HDL-c:females < 1.3, males < 1.0mmol/L. Questionnaires were completed for data on awareness and treatment of dyslipidaemia.
    Results: Subjects with HC and HTG were 66.9% and 40.9% respectively. Low HDL-c were found in 15.2% and 74.9% in females and males respectively. Among those with HC, 42.6%, 19.3% and 5.0% had mild, moderate and severe HC respectively. Awareness of dyslipidaemia was only found in 13.9% of the population, of whom only 8.0% were on treatment.
    Conclusion: There is a high prevalence of dyslipidaemias in Malaysia, majority of whom are unaware of having the major risk factor for atherosclerosis-related complications such as CAD. Hence, there is an urgent need for coronary risk identification, prevention and intervention to combat the global epidemic of CAD
    Matched MeSH terms: Urban Population
  13. Fulltext Effect of Health Education via Mobile Application in Promoting Quality of Life Among Asthmatic Schoolchildren in Urban Malaysia During the COVID-19 Era: A Quasi-experimental Study
    Al Raimi AM, Chong MC, Tang LY, Chua YP, Al Ajeel LY
    Comput Inform Nurs, 2022 Sep 01;40(9):648-657.
    PMID: 35994240 DOI: 10.1097/CIN.0000000000000927
    Bronchial asthma among children is a common chronic disease that may impact quality of life. Health education is one of the strategies to improve knowledge and quality of life. This study aims to assess the effect of health education via a mobile application in promoting the quality of life among schoolchildren with asthma in urban Malaysia during the COVID-19 era. A quasi-experimental, pre- and post-intervention design was used in this study involving a total of 214 students, randomly assigned into two groups (an intervention group and a control group). The control group received face-to-face health education, whereas the experimental group received health education via a mobile application. The findings showed that the total score of quality of life improved from a mean total score at pre-intervention of 5.31 ± 1.27 to post-intervention of 5.66 ± 1.28 for the control group, compared with the experimental group with a mean total score of quality of life at pre-intervention of 5.01 ± 1.36 and post-intervention of 5.85 ± 1.29. A comparison between the experimental and control groups using an independent t test showed statistically significant differences in their mean quality of life scores. The effect of health education via a mobile application showed a statistically significant improvement in the mean quality of life score from pre- to post-intervention ( F1,288 = 57.46, P < .01). As recommended, the use of mobile technology in health education improved the quality of life of schoolchildren with asthma as compared with the traditional methods of a face-to-face lecture and/or a handbook. Thus, educational modules using mobile applications do improve quality of life.
    Matched MeSH terms: Urban Population
  14. Metabolic dysfunction-associated fatty liver disease (MAFLD) and advanced liver fibrosis among hemodialysis patients in a multiethnic urban population in Malaysia
    Wong WK, Chan WK, Ganapathy SS, Lim SK
    Semin Dial, 2023 Mar;36(2):107-116.
    PMID: 35821201 DOI: 10.1111/sdi.13117
    BACKGROUND: Metabolic-dysfunction-associated fatty liver disease (MAFLD) and end stage kidney disease (ESKD) are complications of the metabolic syndrome. Our aim is to study the prevalence of MAFLD and advanced liver fibrosis and the associated factors among hemodialysis patients in a multiracial urban population in Malaysia.

    METHODS: A cross-sectional study of hemodialysis patients from 10 hemodialysis centers was used. FibroTouch examination was performed on all patients. Fatty liver was diagnosed based on ultrasound attenuation parameter ≥248 dB/m while advanced liver fibrosis was diagnosed based on liver stiffness measurement ≥10 kPa.

    RESULTS: This study included 447 hemodialysis patients (median age 59 [50-67], male 55%, Chinese 61%, Malay 20%, Indian 18%). Dialysis vintage was 49 (22-93) months. The prevalence of MAFLD was 43.4%. Independent factors associated with MAFLD were elevated waist circumference (aOR = 10.1, 95% CI = 5.3-19.4, p 

    Matched MeSH terms: Urban Population
  15. Fulltext The relationship between household income and dietary intakes of 1-10 year old urban Malaysian
    Mohd Shariff Z, Lin KG, Sariman S, Lee HS, Siew CY, Mohd Yusof BN, et al.
    Nutr Res Pract, 2015 Jun;9(3):278-87.
    PMID: 26060540 DOI: 10.4162/nrp.2015.9.3.278
    Diet plays an important role in growth and development of children. However, dietary intakes of children living in either rural or urban areas can be influenced by household income. This cross-sectional study examined energy, nutrient and food group intakes of 749 urban children (1-10 years old) by household income status.
    Matched MeSH terms: Urban Population
  16. Fulltext A planetary health model for reducing exposure to faecal contamination in urban informal settlements: Baseline findings from Makassar, Indonesia
    French MA, Fiona Barker S, Taruc RR, Ansariadi A, Duffy GA, Saifuddaolah M, et al.
    Environ Int, 2021 10;155:106679.
    PMID: 34126296 DOI: 10.1016/j.envint.2021.106679
    BACKGROUND: The intense interactions between people, animals and environmental systems in urban informal settlements compromise human and environmental health. Inadequate water and sanitation services, compounded by exposure to flooding and climate change risks, expose inhabitants to environmental contamination causing poor health and wellbeing and degrading ecosystems. However, the exact nature and full scope of risks and exposure pathways between human health and the environment in informal settlements are uncertain. Existing models are limited to microbiological linkages related to faecal-oral exposures at the individual level, and do not account for a broader range of human-environmental variables and interactions that affect population health and wellbeing.

    METHODS: We undertook a 12-month health and environmental assessment in 12 flood-prone informal settlements in Makassar, Indonesia. We obtained caregiver-reported health data, anthropometric measurements, stool and blood samples from children urban informal settlements. It includes broader ecological interconnections and planetary health-related variables at the household, settlement and city levels. It proposes a composite framework of markers to assess water and sanitation challenges and flood risks in urban informal settlements for optimal design and monitoring of interventions.

    Matched MeSH terms: Urban Population
  17. Mosquito species and outdoor breeding places in residential areas in Malaysia
    Saleeza SN, Norma-Rashid Y, Azirun MS
    Southeast Asian J. Trop. Med. Public Health, 2013 Nov;44(6):963-9.
    PMID: 24450233
    We conducted mosquito surveillance at outdoor breeding habitat in 459 households at 7 urban locations in Putrajaya, Malaysia from January to December 2010 to determine the predominant species and breeding locations. The most common species found at all locations was Aedes albopictus. Gardening utensils were the most common breeding sites. Of the 1,885 mosquito larvae specimens found, 1,774 (94.1%) were Ae. albopictus larvae, 84 (4%) were Ae. aegypti larvae and 27 (1%) were Culex quinquefasciatus larvae. The Aedes index for each of the locations was higher than the goal set by the Ministry of Health for Malaysia. However, the container index at each of the locations was within the goal. The Breateau index was above the goal set by the Ministry of Health at Precinct 9B1 but the other locations were within the goal.
    Matched MeSH terms: Urban Population/statistics & numerical data*
  18. Fulltext Tobacco smoking and its association with illicit drug use among young men aged 15-24 years living in urban slums of Bangladesh
    Kabir MA, Goh KL, Kamal SM, Khan MM
    PLoS One, 2013;8(7):e68728.
    PMID: 23935885 DOI: 10.1371/journal.pone.0068728
    Tobacco smoking (TS) and illicit drug use (IDU) are of public health concerns especially in developing countries, including Bangladesh. This paper aims to (i) identify the determinants of TS and IDU, and (ii) examine the association of TS with IDU among young slum dwellers in Bangladesh.
    Matched MeSH terms: Urban Population*
  19. Fulltext Community-based blood pressure measurement by non-health workers using electronic devices: a validation study
    Reidpath DD, Ling ML, Yasin S, Rajagobal K, Allotey P
    Glob Health Action, 2012;5:14876.
    PMID: 22761601 DOI: 10.3402/gha.v5i0.14876
    INTRODUCTION: Population monitoring and screening of blood pressure is an important part of any population health strategy. Qualified health workers are expensive and often unavailable for screening. Non-health workers with electronic blood pressure monitors are increasingly used in community-based research. This approach is unvalidated. In a poor, urban community we compared blood pressure measurements taken by non-health workers using electronic devices against qualified health workers using mercury sphygmomanometers.
    METHOD: Fifty-six adult volunteers participated in the research. Data were collected by five qualified health workers, and six non-health workers. Participants were randomly allocated to have their blood pressure measured on four consecutive occasions by alternating a qualified health worker with a non-health worker. Descriptive statistics and graphs, and mixed effects linear models to account for the repeated measurement were used in the analysis.
    RESULTS: Blood pressure readings by non-health workers were more reliable than those taken by qualified health workers. There was no significant difference between the readings taken by qualified health workers and those taken by non-health workers for systolic blood pressure. Non-health workers were, on average, 5-7 mmHg lower in their measures of blood pressure than the qualified health workers (95%HPD: -2.9 to -10.0) for diastolic blood pressure.
    CONCLUSION: The results provide empirical evidence that supports the practice of non-health workers using electronic devices for BP measurement in community-based research and screening. Non-health workers recorded blood pressures that differed from qualified health workers by no more than 10 mmHg. The approach is promising, but more research is needed to establish the generalisability of the results.
    KEYWORDS: Malaysia; blood pressure; community workers; hypertension; measurement; screening
    Study site: urban, low-income community, of the Klang Valley near Kuala Lumpur, Malaysia
    Device: Mercury sphygmomanometers (Spirit brand, model number CK-101C), electronic, automatic blood pressure monitors (Omron brand model HEM-7203)
    Matched MeSH terms: Urban Population*
  20. Sociodemographic determinants of leisure participation among elderly in Malaysia
    Minhat HS, Mohd Amin R
    J Community Health, 2012 Aug;37(4):840-7.
    PMID: 22160659 DOI: 10.1007/s10900-011-9518-8
    Leisure participation has been proven to be beneficial and has a positive link to successful ageing. This study aims to explore the sociodemographic determinants of leisure participation among the Malaysian elderly. A cross-sectional study was conducted among persons aged 60 years and above, purposively selected from eight health clinics in the state of Selangor. Leisure participation was measured using a validated Leisure Participation Questionnaire specific for Malaysian elderly, consisting of 25 activities, categorized into 4 categories, namely recreational (physical), cognitive, social and productive. Frequency of such participation was measured on a 6-point scale. Its association with sociodemographic variables was examined using inferential and regression analysis. 268 participants were involved in this study (response rate = 100%). The most common daily leisure activities were having conversations while relaxing (78.7%), watching television (74.6%) and reading (63.4%). The least frequently done leisure activities were from the recreational and cognitive categories. The activities were weakly correlated to each other, reflecting the lack of diversity of leisure activities among respondents. Education was the main predictor for leisure participation among elderly, with higher educational level is associated with high RAS (B = 1.020, P < 0.05), CAS (B = 1.580, P < 0.05) and SAS (B = 1.276, P < 0.05). Education level, marital status and locality were important determinants of leisure participation among elderly, with education being the main predictor. Further studies exploring the effective method of educating the ageing society are recommended.
    Matched MeSH terms: Urban Population/statistics & numerical data*
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