Displaying publications 21 - 40 of 48 in total

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  1. Chen ST
    Asia Pac J Public Health, 1989;3(1):19-25.
    PMID: 2497765 DOI: 10.1177/101053958900300104
    From the start of the school milk feeding programme in February 1985 to October 1986, a total of 2,766 children aged six to nine years from 12 primary schools in Ulu Selangor were followed-up for about two years. The children's weight and height were monitored at the beginning, in the middle and at the end of the study. The study shows that there is a reduction in the prevalence of protein-energy malnutrition in terms of underweight (15.3% to 8.6%), stunting (16.3% to 8.3%) and wasting (2.6% to 1.7%) from the start of the school feeding programme to two years later. Associated with this there was an improvement in the attendance rate of the children during the same period. As there was no major developmental change in Ulu Selangor during that period, it is likely that the reduction in the prevalence of protein-energy malnutrition and the improvement of the attendance rate among the children are due to the impact of the school milk feeding programme.
  2. Chen ST, Domala Z
    Asia Pac J Public Health, 1989;3(4):274-7.
    PMID: 2638907 DOI: 10.1177/101053958900300405
    1,256 malnourished children, aged seven to ten years, were selected for study, 575 from Kuala Langat, 416 from Wilayah Persekutuan and 265 from Ulu Selangor. Ninety-three percent of the children were from low socioeconomic groups with large family size, and most of their parents had only primary or no formal education. During the study period, children in Kuala Langat received daily milk supplementation for five days per week, those in Wilayah Persekutuan for two days per week, while those in Ulu Selangor did not receive any milk supplementation. The study shows that a majority of the malnourished primary school children liked to drink milk and that milk intolerance was not a problem among them.
  3. Chen ST, Lam SK
    Med J Malaysia, 1985 Dec;40(4):281-8.
    PMID: 3842727
    A study was carried out at the University Hospital, Kuala Lumpur, Malaysia to determine the age-specific prevalence of measles infection by serology and the age specific - seroconversion rates following measles vaccination. The results show that the percentage of children with passively acquired measles antibodies decreased with increasing age fill three to five months of age. From 12 months of age, the percentage of positivity increased sharply due probably to natural infection. The geometric mean antibody titre was low at birth, but from six months it started to increase. These results indicate that measles infection is common in Malaysia and a small number of children began to acquire natural measles infection from six to eight months of age; however the peak age for the acquisition of measles infection was from 12 months to five years of age. Seroconversion rates following vaccination from nine months of age, ranged from 94-99%. However, the rates and the geometric mean titre were higher among those vaccinated at 11 months of age or older compared with those vaccinated at nine or ten months of age. Based on the above results, it is concluded that the optimum age for measles immunization in Malaysia should be 11 months.
  4. 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.
  5. Ong SH, Chen ST
    J Trop Pediatr, 2020 10 01;66(5):461-469.
    PMID: 31943107 DOI: 10.1093/tropej/fmz085
    BACKGROUND: It is recommended to screen hospitalized children to identify those at risk of malnutrition. Constricted schedule in tertiary care settings calls for the needs of a less burdensome yet effective nutrition screening tool. This study aimed to validate the use of Paediatric Nutrition Screening Tool (PNST) among hospitalized children in a Malaysian tertiary hospital.

    METHODS: This cross-sectional study recruited children below 18 years old admitting into general paediatric ward in a public hospital. The PNST and Subjective Global Nutritional Assessment (SGNA) were performed on 100 children (64 boys and 36 girls). The objective measurements include anthropometry (z-scores for weight, height and body mass index), dietary history and biochemical markers were measured. These were used to classify malnutrition as per Academy of Nutrition and Dietetics/American Society of Parental and Enteral Nutrition (AND/ASPEN) Consensus Statement for identification of paediatric malnutrition and WHO growth standards for children. Cohen's kappa was computed to report the level of agreement.

    RESULTS: The PNST identified 57% of hospitalized children as being at risk of malnutrition. In this study, there was a stronger agreement between PNST with AND/ASPEN malnutrition classification (k = 0.602) as when PNST was compared with WHO (k = 0.225) and SGNA (k = 0.431). The PNST shows higher specificity (85.29%) and sensitivity (78.79%) when compared with AND/ASPEN than with WHO malnutrition criteria (55.81% specificity and 66.67% sensitivity).

    CONCLUSION: This study showed the usefulness of routine use of PNST for screening the malnutrition risk of hospitalized children in Malaysian tertiary hospital settings.

  6. Chen ST, Puthucheary SD
    Trop Geogr Med, 1976 Sep;28(3):211-5.
    PMID: 1006789
    In Malysia, the proportion of children fully immunized againest diphtheria is generally low (20%). On the other hand, the Schick conversion rate rises with age and reaches 90% by 11 years of age. It is noted that asymptomatic carriers are an important epidemiological factor in diphtheria and that carrier rates for school children are high (prevalence of 7.5% while the rate of coloization with C. diphtheriae over a period of one year was 30%). Although immunization protects against clinical diphtheria, it does not prevent the carrier state. Thus, for the control of diphtheria, one should aim for 100% compliance. Some suggestions as to how higher levels of immunity may be achieved are described.
  7. Ong SH, Chen ST
    J Trop Pediatr, 2022 Jan 07;68(1).
    PMID: 35134248 DOI: 10.1093/tropej/fmac007
    BACKGROUND: Children with identified developmental disabilities (IDD) experience a higher risk of growth retardation. Anthropometric indicator is one common objective measurement used to determine malnutrition in those children. A comprehensive nutritional assessment tool should be introduced to offer a more robust approach in understanding their nutritional problems.

    OBJECTIVE: To determine the use of Subjective Global Nutrition Assessment (SGNA) as a nutrition assessment tool for children with IDD in comparison to the anthropometric indicators.

    METHODS: This cross-sectional study was conducted in local community settings. IDD included in this study were autism spectrum disorder (ASD), Down syndrome (DS) and cerebral palsy (CP). SGNA and anthropometry measurements including weight, height, mid-upper arm circumference and triceps skinfolds were performed on 93 children with IDD (40 ASD, 26 DS and 27 CP) aged 5-18 years. Cohen's Kappa, sensitivity, specificity and its 95% confidence interval were calculated between SGNA and anthropometric indicators for the agreement in determining malnutrition status of the children.

    RESULTS: SGNA identified a lower prevalence of malnutrition in children with IDD in comparison to the use of anthropometric indicators. SGNA obtained a moderate-to-fair agreement (above 80% agreement, except height-for-age parameter) and sensitivity (25.71-59.09%) against the use of a single anthropometric indicator in identifying the malnutrition status of the children.

    CONCLUSIONS: The use of SGNA as an adjunct to body mass index-for-age as an anthropometric measurement for diagnosing malnutrition in children and adolescents with IDD is recommended.

  8. Chen ST, Jee FC, Mohamed TB
    J Singapore Paediatr Soc, 1990;32(3-4):97-101.
    PMID: 2133763
    Between 1976 and 1979, hand radiographs of 112 Malay children, 55 males and 57 females aged from 12 to 28 months, from higher socio-economic class families were obtained and studied by two radiologists. These children were part of a longitudinal study on growth and development. A total of 268 hand and wrist radiographs were taken, which the radiologists read independently of each other using the Greulich and Pyle Atlas. The bone age was then compared with the chronological age and the difference, if any, was noted and 'scored'. It was found that 83.4% of cases for males and 94.8% of cases for females matched within the +/- 6 months discrepancy range. For practical purposes therefore, our population may use the Greulich-Pyle Atlas with a good degree of confidence. Typical hand radiographs of male and female Malay children at 12, 18 and 24 months of age are also presented and these may be used as standards for Malaysian children at the respective age groups.
  9. Puthucheary SD, Chen ST, Dugdale AE
    Med J Malaya, 1972 Jun;26(4):262-5.
    PMID: 5069415
  10. Chen ST, Dugdale AE, Puthucheary SD
    Trop Geogr Med, 1972 Sep;24(3):257-64.
    PMID: 4636100
  11. Puthucheary SD, Chen ST, Dugdale AE
    Med J Malaysia, 1972 Jun;26(4):262-265.
    PMID: 35158504
    No abstract available.
  12. Dugdale AE, Chen ST, Hewitt G
    Am J Clin Nutr, 1970 Oct;23(10):1280-7.
    PMID: 5475659
  13. Chen ST, Soo KL, Azriani AR, Van Rostenberghe H, Sakinah H
    Malays J Nutr, 2012 Aug;18(2):185-205.
    PMID: 24575666 MyJurnal
    Persons with disabilities (PWD) are susceptible to malnutrition. Caregivers or teachers in rehabilitation centres may not be adequately trained in nutrition management of PWD. The aims of this study were (i) to assess the nutrition knowledge, attitude and practice among teachers in community-based rehabilitation centres for PWD; and (ii) to evaluate changes in the nutrition knowledge and attitude of the teachers before and after exposure to a training workshop on nutrition management for PWD.
  14. Ong SH, Chen ST, Chee WSS
    Nutr Clin Pract, 2023 Aug;38(4):889-898.
    PMID: 36811458 DOI: 10.1002/ncp.10971
    BACKGROUND: Identification and management of malnutrition among pediatric hospitalized patients is critical for improved clinical outcomes and recovery. This study investigated the use of the Academy of Nutrition and Dietetics and the American Society for Parenteral and Enteral Nutrition (AND/ASPEN) pediatric malnutrition diagnosis in comparison with the Subjective Global Nutritional Assessment (SGNA) tool and single anthropometric indicators (weight, height, body mass index, and mid-upper arm circumference) among hospitalized children.

    METHODS: A cross-sectional study was conducted among 260 children admitted to general medical wards. SGNA and anthropometric measurements were used as references. Kappa agreement, diagnostic values, and area under the curve (AUC) were analyzed to evaluate the diagnostic ability of the AND/ASPEN malnutrition diagnosis tool. Logistic binary regression was performed to determine the predictive ability of each malnutrition diagnosis tool on the length of hospital stay.

    RESULTS: The AND/ASPEN diagnosis tool detected the highest malnutrition rate (41%) among the hospitalized children in comparison with the reference methods. This tool demonstrated fair specificity of 74% and sensitivity of 70% compared with the SGNA. It obtained a weak agreement in determining the presence of malnutrition by kappa (0.06-0.42) and receiver operating characteristic curve analysis (AUC = 0.54-0.72). The use of the AND/ASPEN tool obtained an odds ratio of 0.84 (95% CI, 0.44-1.61; P = 0.59) in predicting the length of hospital stay.

    CONCLUSIONS: The AND/ASPEN malnutrition tool is an acceptable nutrition assessment tool for hospitalized children in general medical wards.

  15. Chen ST, Edsall G, Peel MM, Sinnathuray TA
    Bull World Health Organ, 1983;61(1):159-65.
    PMID: 6601539
    The relationship between the timing of maternal tetanus toxoid immunization and the presence of protective antitoxin in placental cord blood was investigated among women admitted to the obstetrical service of the University Hospital in Kuala Lumpur, Malaysia. The 1st dose was given between 13-39 weeks of gestation, with a median of 29 weeks. The 2nd dose was given an average of 4 weeks later. Protection was conferred on 80% or more of newborns whose mothers received their 1st tetanus toxoid injection 60 days or more before delivery. Protective levels were seen in all cord blood samples from infants whose mothers had received their 1st injection 90 days before delivery. Similarly,protective titers were found in 100% of cord blood samples when the 2nd maternal injection was give 60 days or more before delivery. There was no significant degree of protection when immunization was carried out less than 20 days before delivery. A single-dose schedule provided no protection when less than 70 days before delivery. Cord and maternal antiotoxin titers differed by no more than 1 2-fold dilution for almost all of the individual paired sera. A cord: maternal antitoxin ratio of 2 was more likely to occur with increasing time between the 2nd injection and delivery. Overall, these findings indicate that the 1st injection of a 2-dose maternal tetanus toxoid schedule should be given at least 60 days and preferably 90 days before delivery.
  16. Wong TX, Chen ST, Ong SH, Shyam S, Kandasami P, Chee WSS
    Trials, 2021 Nov 03;22(1):767.
    PMID: 34732233 DOI: 10.1186/s13063-021-05716-5
    BACKGROUND: While it is well established that perioperative use of oral nutrition supplement (ONS) improves nutrition status among severely malnourished surgical cancer patients, the evidence requires further substantiation for non-severely malnourished patients with cancer. This protocol paper presents the rationale and design of a randomised controlled trial to evaluate the effectiveness of preoperative as well as an extended 90-day postoperative use of ONS on nutritional and clinical outcomes among patients undergoing elective surgery for breast and colorectal cancer.

    METHODS: Patients with primary breast and colorectal cancer undergoing elective surgery are recruited from two tertiary hospitals. Eligible patients are assigned into one of the three intervention arms: (i) Group SS will receive ONS in addition to their normal diet up to 14 days preoperatively and postoperatively up to discharge; (ii) Group SS-E will receive ONS in addition to their normal diet up to 14 days preoperatively, postoperatively up to discharge and for an extended 90 days after discharge; and (iii) Group DS will receive ONS in addition to their normal diet postoperatively up to discharge from the hospital. The ONS is a standard formula fortified with lactium to aid in sleep for recovery. The primary endpoints include changes in weight, body mass index (BMI), serum albumin and prealbumin levels, while secondary endpoints are body composition (muscle and fat mass), muscle strength (handgrip strength), energy and protein intake, sleep quality, haemoglobin, inflammatory markers (transferrin, high sensitivity C-reactive protein, interleukin-6), stress marker (saliva cortisol), length of hospital stay and postoperative complication rate.

    DISCUSSION: This trial is expected to provide evidence on whether perioperative supplementation in breast and colorectal cancer patients presenting with high BMI and not severely malnourished but undergoing the stress of surgery would be beneficial in terms of nutritional and clinical outcomes.

    TRIAL REGISTRATION: ClinicalTrial.gov NCT04400552. Registered on 22 May 2020, retrospectively registered.

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