MyMedR

Experience of dental caries among aboriginal children in Selangor, Malaysia

Kadir RA, Yassin AT

J Nihon Univ Sch Dent, 1990 Dec;32(4):275-80.

PMID: 2074496

A cross-sectional survey involving 303 6-15-year-old aboriginal children was carried out in Selangor, West Malaysia. Dental caries status was assessed on the basis of the methods of the World Health Organization Oral Health Survey. The findings indicated a generally low prevalence of dental caries with a mean df of 4.94 for children below the age of 10 years. Mean DMFT and DMFS values of 1.71 and 3.22, respectively, were also observed for the 6-15-year-old children.

Matched MeSH terms: Ethnic Groups*

Ethnic variations of sweet preferences in Malaysian children: a pilot study

Jaafar N, Abdul Razak I

J Pedod, 1990;14(3):147-9.

PMID: 2081132

Diet and sugar eating habits, in particular sweet preference levels, are gradually nurtured over time by culturally accepted dietary norms. The dietary habits of Malaysia's three main ethnic groups are distinctively different from each other and expectedly, many studies have discovered significant ethnic variations in caries experience. In order to guide further research work into the causes of these variations, this pilot study was designed to establish whether ethnic variations exist in sweet preference levels. This study found that although the difference in sweet preference between boys and girls in this sample was not statistically significant, the ethnic variation was statistically significant. The implications of this study and suggestions for further research in this field are discussed.

Matched MeSH terms: Ethnic Groups*

Ethnic and other factors affecting birthweight in Singapore

Viegas OA, Ratnam SS, Cole TJ

Int J Gynaecol Obstet, 1989 Aug;29(4):289-95.

PMID: 2571528

Data on 1800 term babies, 600 from each of the Chinese, Malay and Indian racial groups, were used to identify the factors affecting birthweight in Singapore. After adjustment for gestation, maternal height and other variables, the mean Indian birthweight was 100 g less than for the Chinese (P less than 0.001), 0.001), while the Malays averaged 33 g less than the Chinese. The shortfall in Indian birthweight is thought to be due, at least partly, to environmental factors.

Matched MeSH terms: Ethnic Groups*

The unwelcome guests: Indonesian immigrants and Malaysian public responses

Kassim A

Tonan Ajia Kenkyu, 1987 Sep;25(2):265-78.

PMID: 12157842

Matched MeSH terms: Ethnic Groups*

Bisexual feelings and opposite-sex behavior in male Malaysian medical students

Buhrich N, Armstrong MS, McConaghy N

Arch Sex Behav, 1982 Oct;11(5):387-93.

PMID: 7181646

The sexual identity of 65 Malaysian male medical students was investigated by anonymous questionnaire. Of these students, 40% were aware of homosexual feelings prior to age 15 years, and 16% were so aware currently. There were correlations between current homosexual feelings and feminine sex dimorphic behavior during childhood and between current homosexual feelings and feminine gender identity. The results are discussed in light of results of a similar questionnaire completed by 138 male medical students in Sydney, Australia.
Study site: National University of Malaysia (Universiti Kebangsaan Malaysia), Kuala Lumpur, Malaysia

Matched MeSH terms: Ethnic Groups/psychology*

Reintegration of chronic mental patients into the Malaysian community

Krahl W

Int J Soc Psychiatry, 1982;28(1):15-9.

PMID: 7107135

This paper describes a rehabilitation programme for male chronic mental patients, with the aim of reintegrating them into the community. Since in Malaysia about 50% of the work force are stilling earning their living in the agricultural sector, the programme concentrates on training in farming and animal rearing. Since the patients are very institutionalised, resocialisation training is also provided that involves learning to communicate, to mix with others, to know how to use money, to make one's own demands, and to cope with more personal freedom. When a patient is trained well enough to be employed outside, a job is found for him that provides food, lodging and payment. After discharge from the hospital, he is regularly followed up by the social worker.

Matched MeSH terms: Ethnic Groups/psychology*

Fulltext Prevalence and distribution of intestinal and blood parasites among Ibans in the Nanga Atoi in the Second Division in Sarawak

Neo CB, Cheah YK, Chin PW, Tan TV, Wong NC, Yap LM, et al.

Med J Malaysia, 1987 Dec;42(4):294-8.

PMID: 3454401

About two-thirds (67.6%) of 142 Ibans (from birth to 90 years of age) from 26 house-holds in a longhouse in Nanga Atoi in the Second Division of Sarawak were infected with intestinal parasites. The more common helmintic infections were hookworms (47.2%) and Trichuris trichiura (43.0%). Intestinal protozoan infections were less common. Single helmintic infections were more common than multiple infections and the commonest type of multiple infections was Trichuris mixed with hookworms. Malaria and filariasis were not reported among these inhabitants surveyed.

Matched MeSH terms: Ethnic Groups*

Neonatal anthropometry in relation to ethnic distribution of birthweight in Singapore

Bhan A, Viegas OA, Huang HS, Ratnam SS

J Trop Pediatr, 1985 04;31(2):124-8.

PMID: 4009779 DOI: 10.1093/tropej/31.2.124

Matched MeSH terms: Ethnic Groups*

Assessing socioeconomic correlates of birthweight in peninsular Malaysia: ethnic differences and changes over time

DaVanzo J, Habicht JP, Butz WP

Soc Sci Med, 1984;18(5):387-404.

PMID: 6729519

This paper presents evidence from the Malaysian Family Life Survey that mothers' reports of their babies' birthweights, including reports of unweighed babies' approximate size at birth, can be used to examine many biological and socioeconomic correlates of birthweight. The study uses a sample of 5583 singleton births that occurred between 1945 and 1976. In these data, the frequency distribution of birthweights and their bivariate and multivariate relationships with the biological correlates of mother's age, baby's sex, first parity and infant mortality are consistent with those found in prospective studies. A new biological correlate, mother's age at menarche, is introduced as a proxy for the mother's nutrition during childhood. Late age at menarche is associated with lower birthweight. Other results show mothers younger than 20 years and older than 35 appear to be at greater risk of bearing small babies, but the former effect is no longer important when parity is controlled. Short interbirth intervals are associated with small babies. We attempt to distinguish whether this is due to prematurity or to maternal nutritional depletion; both effects appear to be operating. Higher income appears to mitigate the pernicious effect of short interbirth intervals. Indian babies weigh significantly less than those of other ethnic groups. Furthermore, birthweights have increased since the 1950s for Malays and Chinese, but not for Indians. The lower birthweights and lack of improvement over time for Indians appear to be due to close birthspacing, lack of access to medical care and falling incomes.

Matched MeSH terms: Ethnic Groups*

Marriage and ethnicity in West Malaysia

Chahnazarian A

Comp Soc Res, 1984;7:231-55.

PMID: 12340260

"This paper will focus on ethnic differentials in the nuptiality of West Malaysia and on their evolution since the Second World War. The growing similarity of nuptiality patterns in the Malay, Chinese, and Indian communities will be outlined and the influence of age and sex distributions on the observed changes will be examined. The sources of data for this study are the 1947, 1957, and 1970 Population Censuses and the 1974 Malaysian Family and Fertility Survey."

Matched MeSH terms: Ethnic Groups*

STR Data for the AmpFlSTR Identifiler loci in three ethnic groups (Malay, Chinese, Indian) of the Malaysian population

Seah LH, Jeevan NH, Othman MI, Jaya P, Ooi YS, Wong PC, et al.

Forensic Sci Int, 2003 Dec 17;138(1-3):134-7.

PMID: 14642733

Allele frequencies for the 15 STR loci in the AmpFlSTR Identifiler kit were determined and compared for the three main ethnic groups of the Malaysian population comprising 210 Malays, 219 Chinese and 209 Indians. Blood was placed on FTA paper and DNA was purified in-situ.

Matched MeSH terms: Ethnic Groups/genetics*

Validity of body composition methods across ethnic population groups

Deurenberg P, Deurenberg-Yap M

Acta Diabetol, 2003 Oct;40 Suppl 1:S246-9.

PMID: 14618484

Most in vivo body composition methods rely on assumptions that may vary among different population groups as well as within the same population group. The assumptions are based on in vitro body composition (carcass) analyses. The majority of body composition studies were performed on Caucasians and much of the information on validity methods and assumptions were available only for this ethnic group. It is assumed that these assumptions are also valid for other ethnic groups. However, if apparent differences across ethnic groups in body composition 'constants' and body composition 'rules' are not taken into account, biased information on body composition will be the result. This in turn may lead to misclassification of obesity or underweight at an individual as well as a population level. There is a need for more cross-ethnic population studies on body composition. Those studies should be carried out carefully, with adequate methodology and standardization for the obtained information to be valuable.

Matched MeSH terms: Ethnic Groups*

Ethnic differences in the Goodenough-Harris draw-a-man and draw-a-woman tests

Dugdale AE, Chen ST

Arch Dis Child, 1979 Nov;54(11):880-5.

PMID: 393181

The draw-a-man (DAM) and draw-a-woman (DAW) tests were given to 307 schoolchildren in Petaling Jaya, Malaysia. The children were ethnically Malay, Chinese, or Indian (Tamil), and all came from lower socioeconomic groups. The standard scores of the Chinese children averaged 118 in the DAM and 112 in the DAW tests. These scores were significantly better than the American standards. Malay children scored significantly lower than Chinese, and Tamil children scored lower again. The nutritional status of the children had no influence on the scores. Chinese and Tamil children scored better in the DAM than the DAW, while in Malay boys the reverse was true. Malay children tended to emphasise clothing in the DAM, but Chinese and Tamil children scored better on items relating to facial features and body proportions. The Goodenough-Harris draw-a-person tests are obviously not culture-free, but the causes of ethnic differences have not been elucidated.

Matched MeSH terms: Ethnic Groups*

The Banyan tree: overseas migrants from South Asia

Tinker H

Dev Dig, 1979 Oct;17(4):116-24.

PMID: 12336016

Matched MeSH terms: Ethnic Groups*

Oral carcinoma in the Chinese female

Ramanathan K, Lakshimi S

Med J Malaysia, 1973 Dec;28(2):84-7.

PMID: 4276246

Matched MeSH terms: Ethnic Groups*

The changing psychopathology of Amok

Teoh JI

Psychiatry, 1972 Nov;35(4):345-51.

PMID: 5086382

Matched MeSH terms: Ethnic Groups*

Prevalence and ethnic differences of autosomal-dominant cerebellar ataxia in Singapore

Zhao Y, Tan EK, Law HY, Yoon CS, Wong MC, Ng I

Clin Genet, 2002 Dec;62(6):478-81.

PMID: 12485197

We report the prevalence and ethnic differences of autosomal-dominant cerebellar ataxia (ADCA) in Singapore. Amongst 204 patients with ataxia who underwent genetic testing for dentatorubral-pallidoluysian atrophy (DRPLA) and for spinocerebellar ataxias (SCA) 1, 2, 3, 6, 7, 8, 10 and 12, 58 (28.4%) patients from 36 families tested positive. SCA 3 was identified in 31 (53.4%) patients from 15 families, SCA 2 in 17 (29.3%) patients from 12 families and SCA 1 in four (6.9%) patients from four families. Other SCA subtypes were rare. SCA 2 was the only subtype identified amongst ethnic Malay and ethnic Indian families. The estimated prevalence of ADCA in Singaporean families was at least 1 : 27,000. Based on the history and ancestry of Singaporeans, our study supported a founder effect for specific SCA subtypes and the association of ethnicity-specific SCA subtypes. Our findings suggest that SCA 2 is relatively common amongst the Malay race and that priority testing for SCA 3 and SCA 2 for ethnic Chinese, and SCA 2 for ethnic Malay, may be cost effective and relevant for the region.

Matched MeSH terms: Ethnic Groups/genetics*

D1S80 (pMCT118) allele frequencies in a Malay population sample from Malaysia

Koh CL, Lim ME, Ng HS, Sam CK

Int J Legal Med, 1997;110(1):39-40.

PMID: 9081241

The D1S80 allele frequencies in 124 unrelated Malays from the Malaysian population were determined and 51 genotypes and 19 alleles were encountered. The D1S80 frequency distribution met Hardy-Weinberg expectations. The observed heterozygosity was 0.80 and the power of discrimination was 0.96.

Matched MeSH terms: Ethnic Groups/genetics*

Paternal lineage affinity of the Malay subethnic and Orang Asli populations in Peninsular Malaysia

SharifahNany RahayuKarmilla S, Aedrianee AR, Nur Haslindawaty AR, Nur Azeelah A, Panneerchelvam S, Norazmi MN, et al.

Int J Legal Med, 2018 Jul;132(4):1087-1090.

PMID: 29052042 DOI: 10.1007/s00414-017-1697-0

Peninsular Malaysia is populated by the Malays, Chinese, Indians, and Orang Asli. We have analyzed 17 Y-STRs loci for 243 randomly unrelated individuals, which include 153 Malays (7 Acheh, 13 Champa, 11 Rawa, 9 Kedah, 23 Minang, 15 Bugis, 43 Kelantan, 14 Jawa, and 18 Bugis) and 90 Orang Asli [54 Semang (16 Kensiu, 13 Lanoh, 25 Bateq); 30 Senoi (21 Semai, 9 Che Wong); and 6 Proto-Malay (6 Orang Kanaq)] from selected settlements in Peninsular Malaysia using the AmpFlSTR Yfiler™ kit (Applied Biosystems™). The overall haplotype diversity is 0.9966, i.e., 0.9984 for the Malays and 0.9793 for the Orang Asli. A total of 158 haplotypes (65.02%) were individually unique. The p value and pairwise Rst analysis was calculated to show the genetic structure of the samples with other world populations (from YHRD website). Based on the Y-STR data, Champa, Acheh, Kedah, Minang, and Kelantan are clustered together. Lanoh and Kensiu (Semang) are very closely related, suggesting similar paternal ancestry. Jawa Malays and Indonesian Java, plus the Bugis Malays and Australian Aborigines shared high degree of paternal lineage affinity. This study presents data for very precious relict groups, who are the earliest inhabitants of Peninsular Malaysia.

Matched MeSH terms: Ethnic Groups/genetics*

Mutual compensation of the effects of religious and ethnic homogamy on reproduction

Huber S, Fieder M

Am J Hum Biol, 2018 01;30(1).

PMID: 28960565 DOI: 10.1002/ajhb.23064

OBJECTIVES: Homogamy, mating based on similarity, has been demonstrated for a great variety of traits such as age, education, religion, and physical and psychological traits. Recently, pro-fertile effects of religious as well as educational homogamy have been reported. We investigate whether ethnic homogamy also has a pro-fertile effect and whether ethnic and religious homogamy interact in their putative effects on reproduction (in terms of average number of offspring).

METHODS: We analyzed the association between ethnic as well as religious homogamy and woman's average number of offspring based on census data from ten countries provided by IPUMS international, encompassing a total of 1,485,433 married women aged 46-60 years (who have thus completed or almost completed reproduction) and their spouses.

RESULTS: We find a clear pro-fertile but nonadditive effect of both ethnic and religious homogamy, which is most pronounced in the case of double homogamy. Our results further indicate that homogamy for one trait may compensate for heterogamy of the other, albeit countries differ regarding which trait compensates for the other.

CONCLUSIONS: We suggest that the interaction between ethnic homogamy, religious homogamy, and reproduction provides an interesting example for gene-culture co-evolution.

Matched MeSH terms: Ethnic Groups*

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