Displaying publications 1 - 20 of 60 in total

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  1. Ho JJ
    Med J Malaysia, 2004 Mar;59(1):94-9.
    PMID: 15535342
    There is good evidence that folic acid is safe and efficacious for reducing neural tube defect (NTD). All women capable of becoming pregnant should take 400 microgram daily. This can be given in the form of a daily vitamin supplement, by food fortification, or by increasing natural dietary folates. Compulsory grain fortification has been shown to reduce NTD in a population but supplementation and dietary advice have not. Malaysia should work towards a programme of grain fortification and use alternative strategies to reach sections of the population that would not be covered but several research questions need to be answered before a programme could be implemented in Malaysia.
  2. Ho JJ
    Med J Malaysia, 2001 Jun;56(2):227-31.
    PMID: 11771084
    An analysis was done of available data from the Department of Statistics Malaysia, on the type of congenital abnormality contributing to death, to determine whether progress in health care over recent years was associated with any decline in mortality from congenital abnormality. A significant decline in death due to congenital abnormality was observed between 1991 and 1996. This was attributable to a decline in deaths due to congenital heart disease occurring because of improvements in cardiac surgical services for infants. In 1997 death due to congenital heart disease increased significantly. This could be attributed to improvements in the diagnosis of congenital heart disease in the neonate.
  3. Ho JJ
    Pediatr Infect Dis J, 2001 Jun;20(6):557-60.
    PMID: 11419494
    The purpose of this study was to examine the rate and mortality from late onset infection occurring in very low birth weight infants admitted to Malaysian nurseries.
  4. Rajendra S, Ho JJ
    Eur J Gastroenterol Hepatol, 2005 Aug;17(8):871-5.
    PMID: 16003138
    BACKGROUND: Traditionally, diverticular disease of the colon has been attributed to ageing, low dietary fibre and a high intraluminal pressure. Recently, genetic and racial factors have also been implicated.

    METHODS: Four-hundred and ten consecutive multiracial Asian patients undergoing colonoscopy for a variety of bowel symptoms in a private endoscopy unit were studied for differing frequencies (if any) in colonic diverticular disease and concomitant abnormalities.

    RESULTS: Forty-one patients (10%) had diverticular disease. Diverticula were present in 22/147 Chinese (15%), 14/153 Indians (9%) and 5/110 Malays (4.5%). The mean age of patients with diverticular disease was 55 years as compared with 51.3 years in those without (P = 0.12) and there was no gender difference. Thirty-six patients (88%) had diverticula in the right colon only, four patients (10%) exclusively in the left hemicolon, and one patient (2%) had bilateral involvement. Using regression analysis, Chinese ethnicity [odds ratio (OR)=2.11; 95% confidence interval (CI), 1.09-4.09; P = 0.027), constipation (OR = 2.65; 95% CI, 1.23-5.42; P = 0.007) and colorectal adenomas (OR = 2.65; 95% CI, 1.08-6.46; P = 0.033) were independently associated with diverticular disease.

    CONCLUSIONS: Colonic diverticular disease in a multiracial Asian patient population has an ethnic predilection and is predominantly right-sided.

  5. Ho JJ, Rasa G
    Cochrane Database Syst Rev, 2007 Jul 18;2007(3):CD005588.
    PMID: 17636807
    BACKGROUND: Persistent pulmonary hypertension of the newborn (PPHN) occurs in approximately 1.9 per 1000 newborns and may be more frequent in developing countries. There is strong evidence for the use of inhaled nitric oxide (iNO) and extra corporeal membrane oxygenation (ECMO) in the treatment of PPHN. However, many developing countries do not have access or the technical expertise required for these expensive therapies. Magnesium sulfate is a potent vasodilator and hence has the potential to reduce the high pulmonary arterial pressures associated with PPHN. If magnesium sulfate were found to be effective in the treatment of PPHN, this could be a cost effective and potentially life-saving therapy.

    OBJECTIVES: To evaluate the use of magnesium sulfate compared with placebo or standard ventilator management alone, sildenafil infusion, adenosine infusion, or inhaled nitric oxide on mortality or the use of backup iNO or ECMO in term and near-term newborns (> 34 weeks gestational age) with PPHN.

    SEARCH STRATEGY: The standard search strategy of the Cochrane Neonatal Review Group (CNRG) was used. No language restrictions was applied. The Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library, Issue 1, 2006) and MEDLINE (1966 to April 20, 2007) were searched for relevant randomized and quasi-randomized trials. In addition the reference lists of retrieved articles were reviewed and known experts were contacted to obtain unpublished data.

    SELECTION CRITERIA: All randomised or quasi-random studies were eligible where one of the treatment groups received magnesium sulfate for PPHN.

    DATA COLLECTION AND ANALYSIS: Standard methods of the Cochrane Collaboration and the CNRG were used, including independent assessment of trial quality and extraction of data by each author.

    MAIN RESULTS: No eligible trials were found

    AUTHORS' CONCLUSIONS: On the basis of the current lack of evidence, the use of magnesium sulphate cannot be recommended in the treatment of PPHN. Randomised controlled trials are recommended.

  6. Ho JJ, Chang AS
    J Trop Pediatr, 2007 Aug;53(4):232-7.
    PMID: 17578848
    Over a 10-year period there was increasing involvement by clinicians in the generation and implementation of evidence-based practices in the neonatal intensive care unit (NICU). For two cohorts of very low birth weight (VLBW) babies admitted 10 years apart to a developing country, NICU were compared and changes occurring in process of care that might have contributed to any change in outcome were documented.
  7. Ong HT, Ong LM, Ho JJ
    ISRN Cardiol, 2013;2013:478597.
    PMID: 24307952 DOI: 10.1155/2013/478597
    Context. Whether angiotensin converting-enzyme inhibitors (ACEI) and angiotensin-receptor blockers (ARB) are useful in high risk patients without heart failure is unclear. We perform a meta-analysis of prospective randomized placebo-controlled ACEI or ARB trials studying patients with a combination of risk factors to assess treatment impact on all cause mortality, cardiovascular mortality, nonfatal myocardial infarction (MI) and stroke. Method. A PubMed search was made for placebo-controlled trials recruiting at least 1,200 high risk patients randomized to either ACEI or ARB, with follow-up of at least 2 years. Meta-analysis was performed using the RevMan 5 program and Mantel-Haenszel analysis was done with a fixed effects model. Results. Ten trials recruiting 77,633 patients were reviewed. All cause mortality was significantly reduced by ACEI (RR 0.89; P = 0.0008), but not by ARB treatment (RR 1.00; P = 0.89). Cardiovascular mortality and nonfatal MI were also reduced in the ACEI trials but not with ARB therapy. Stroke was significantly reduced in the ACEI trials (RR 0.75; P < 0.00001) and more modestly reduced in the ARB trials (RR 0.90; P = 0.01). Conclusion. ACEI treatment reduced stroke, nonfatal MI, cardiovascular and total mortality in high risk patients, while ARB modestly reduced stroke with no effect on nonfatal MI, cardiovascular and total mortality.
  8. Jaafar SH, Lee KS, Ho JJ
    PMID: 22972095 DOI: 10.1002/14651858.CD006641.pub2
    Separate care for a new mother and infant may affect the duration of breastfeeding, breastfeeding behaviour and may have an adverse effect on neonatal and maternal outcomes.
  9. Ho JJ, Thong MK, Nurani NK
    Aust N Z J Obstet Gynaecol, 2006 Feb;46(1):55-7.
    PMID: 16441696
    We studied 253 women with a pregnancy complicated by a birth defect and 506 controls to determine the frequency and type of prenatal tests and the types of defects detected antenatally. Most women had at least one ultrasound examination, but the frequency of other screening tests was low. Only 38 (15%) of defects were detected antenatally (37 by ultrasound). Birth prevalence is unlikely to be affected by pregnancy termination.
  10. Rajendra S, Ho JJ, Arokiasamy J
    J Gastroenterol Hepatol, 2005 Jan;20(1):51-5.
    PMID: 15610446
    Ethnic differences have been reported for colorectal polyps and large bowel cancer; although the supporting data is weak and insufficient to draw firm conclusions.
  11. Norhayati MN, Ho JJ, Azman MY
    PMID: 25803008 DOI: 10.1002/14651858.CD010089.pub2
    BACKGROUND: Acute otitis media (AOM) is one of the most common infectious diseases in children. It has been reported that 64% of infants have an episode of AOM by the age of six months and 86% by one year. Although most cases of AOM are due to bacterial infection, it is commonly triggered by a viral infection. In most children it is self limiting, but it does carry a risk of complications. Since antibiotic treatment increases the risk of antibiotic resistance, influenza vaccines might be an effective way of reducing this risk by preventing the development of AOM.

    OBJECTIVES: To assess the effectiveness of influenza vaccine in reducing the occurrence of acute otitis media (AOM) in infants and children.

    SEARCH METHODS: We searched CENTRAL (2014, Issue 6), MEDLINE (1946 to July week 1, 2014), EMBASE (2010 to July 2014), CINAHL (1981 to July 2014), LILACS (1982 to July 2014), Web of Science (1955 to July 2014) and reference lists of articles to July 2014.

    SELECTION CRITERIA: Randomised controlled trials (RCTs) comparing influenza vaccine with placebo or no treatment in infants and children aged younger than six years old. We included children of either sex and of any ethnicity, with or without a history of recurrent AOM.

    DATA COLLECTION AND ANALYSIS: Two review authors independently screened studies, assessed trial quality and extracted data. We performed statistical analyses using the random-effects and fixed-effect models and expressed the results as risk ratio (RR), risk difference (RD) and number needed to treat to benefit (NNTB) for dichotomous outcomes, with 95% confidence intervals (CI).

    MAIN RESULTS: We included 10 trials (six trials in high-income countries and four multicentre trials in high-, middle- and low-income countries) involving 16,707 children aged six months to six years. Eight trials recruited participants from a healthcare setting. Nine trials (and all five trials that contributed to the primary outcome) declared funding from vaccine manufacturers. Four trials reported adequate allocation concealment and nine trials reported adequate blinding of participants and personnel. Attrition was low for all trials included in the analysis.The primary outcome showed a small reduction in at least one episode of AOM over at least six months of follow-up (five trials, 4736 participants: RR 0.80, 95% CI 0.67 to 0.96; RD -0.04, 95% CI -0.07 to -0.02; NNTB 25, 95% CI 15 to 50).The subgroup analyses (i.e. number of courses, settings, seasons or types of vaccine administered) showed no differences.There was a reduction in the use of antibiotics in vaccinated children (two trials, 1223 participants: RR 0.70, 95% CI 0.59 to 0.83; RD -0.15, 95% CI -0.30 to -0.00).There was no significant difference in the utilisation of health care for the one trial that provided sufficient information to be included. The use of influenza vaccine resulted in a significant increase in fever (six trials, 10,199 participants: RR 1.15, 95% CI 1.06 to 1.24; RD 0.02, 95% CI -0.00 to 0.05) and rhinorrhoea (six trials, 10,563 children: RR 1.17, 95% CI 1.07 to 1.29; RD 0.09, 95% CI 0.01 to 0.16) but no difference in pharyngitis. No major adverse events were reported.Compared to the protocol, the review included a subgroup analysis of AOM episodes by season, and changed the types of influenza vaccine from a secondary outcome to a subgroup analysis.

    AUTHORS' CONCLUSIONS: Influenza vaccine results in a small reduction in AOM. The observed reduction with the use of antibiotics needs to be considered in the light of current recommended practices aimed at avoiding antibiotic overuse. Safety data from these trials are limited. The benefits may not justify the use of influenza vaccine without taking into account the vaccine efficacy in reducing influenza and safety data. The quality of the evidence was high to moderate. Additional research is needed.

  12. Ho JJ, Amar HSS, Ismail R
    Med J Malaysia, 2001 Sep;56(3):331-5.
    PMID: 11732079
    The Griffiths Scales for Mental Development were used to assess a group of 60 normal 2-year old Malaysian children (25 Indian, 23 Malay and 12 Chinese). The mean GQ was 104.2 (SD 9.3). This was significantly higher than the test mean of 100, p < 0.001. The mean score for Malaysian children was significantly higher on the locomotor, personal social, performance and practical reasoning subscales while they were significantly lower on the hand eye subscale and did not differ from the test mean on the hearing and speech subscale. There was a significant correlation between GQ and social class, r = -0.39, p < 0.05. Scores were lower than those currently obtained on British children, p < 0.001. Minor difficulties due to language and cultural factors arose over the interpretation of several items but with standardisation of these items the test is useful in Malaysian children.
  13. Amar HS, Ho JJ, Mohan AJ
    J Paediatr Child Health, 1999 Feb;35(1):63-6.
    PMID: 10234638
    OBJECTIVE: To determine the community prevalence of human immunodeficiency virus (HIV) in women at the time of delivery in a Malaysian setting.

    METHODOLOGY: Cord blood samples from a pilot screening programme for congenital hypothyroidism in 1995 at Ipoh city and surrounding district hospitals were screened anonymously for HIV 1 and 2. HIV status was determined using chemiluminescent technology. Positive samples were retested using the Genelavia Mixt assay.

    RESULTS: A total of 4927 samples were tested. The ethnic breakdown included 51.7% Malays, 18.9% Chinese, 14.3% Indian, 2.3% Others and 12.9% unknown. The geographical distribution of samples was 73.9% urban, 24.2% rural and 1.9% unknown. The seroprevalence of HIV positivity was 3.25 per 1000 deliveries (95% CI: 1.92-5.16). Seroprevalence was higher for samples from rural and Malay mothers.

    CONCLUSION: The high seroprevalence in this study suggests that the spread of HIV is far wider than that anticipated by mandatory national reporting. It also supports antenatal screening and the use of antiretroviral therapy as an important strategy to reduce perinatal transmission.

  14. Ng CA, Ho JJ, Lee ZH
    PLoS One, 2019;14(4):e0215869.
    PMID: 31022227 DOI: 10.1371/journal.pone.0215869
    BACKGROUND: The benefits of six months exclusive breastfeeding are well established for both mother and infant. One of the 10 steps of the Baby Friendly Hospital Initiative is rooming-in (mother and baby together in the same room throughout hospitalisation). A Cochrane review found only one randomised controlled trial (RCT) examining the effects of continuous rooming-in versus nursery care on breastfeeding duration, and concluded there was insufficient evidence to support or refute either practice. We aimed to examine the effect of continuous or intermittent rooming-in on breastfeeding duration.

    METHODS AND FINDINGS: We included all prospective controlled studies (randomised and non-randomised) comparing rooming-in to nursery care that reported full or partial breastfeeding up to six months. We used the 2016 search results of the Cochrane review and updated the search to August 2018 using OVID MEDLINE. Duplicate data extraction and assessment of risk of bias were performed. Meta-analyses were performed using REVMAN 5. The GRADE approach was used to assess quality of evidence. Seven studies were included, five had 24-hour-per-day, one daytime only and one 8-hours-per-day rooming-in. Four studies had at least one additional co-intervention: Differences in delivery room management, and educational packages. All studies contributing to meta-analyses had 24-hour rooming-in. There was no difference in the proportion of infants on full breastfeeding at 3 months (RR 1.14; 95% CI 0.84 to 1.54; very-low-quality evidence), 4 months (RR 0.99; 95% CI 0.73 to 1.33; very-low-quality evidence) and 6 months (RR 0.95; 95% CI 0.57 to 1.58; low-quality evidence). The proportion of infants on partial breastfeeding at 3-4 months was higher with rooming-in (RR 1.31; 95% CI 1.06 to 1.61; very-low-quality evidence).

    CONCLUSION: The addition of non-randomised prospective controlled studies to existing evidence did not add further information on the effects of rooming-in on breastfeeding duration but resulted in lower quality of evidence. Uncertainty about the effects of rooming-in on breastfeeding duration remains.

  15. Low CS, Ho JJ, Nallusamy R
    World J Pediatr, 2016 Nov;12(4):450-454.
    PMID: 27286688 DOI: 10.1007/s12519-016-0037-7
    BACKGROUND: Most of the evidence on early feeding of preterm infants was derived from high income settings, it is equally important to evaluate whether it can be successfully implemented into less resourced settings. This study aimed to compare growth and feeding of preterm infants before and after the introduction of a new aggressive feeding policy in Penang Hospital, a tertiary referral hospital in a middle income country.

    METHODS: The new aggressive feeding policy was developed mainly from Cochrane review evidence, using early parenteral and enteral nutrition with standardized breastfeeding counselling aimed at empowering mothers to provide early expressed milk. A total of 80 preterm babies (34 weeks and below) discharged from NICU were included (40 pre- and 40 post-intervention). Pre and post-intervention data were compared. The primary outcome was growth at day 7, 14, 21 and at discharge and secondary outcomes were time to full oral feeding, breastfeeding rates, and adverse events.

    RESULTS: Complete data were available for all babies to discharge. One baby was discharged prior to day 14 and 10 babies before day 21, so growth data for these babies were unavailable. Baseline data were similar in the two groups. There was no significant weight difference at 7, 14, 21 days and at discharge. More post-intervention babies were breastfed at discharge than pre-intervention babies (21 vs. 8, P=0.005). Nosocomial infection (11 vs. 4, P=0.045), and blood transfusion were significantly lower in the postintervention babies than in the pre-intervention babies (31 vs. 13, P=0.01). The post-intervention babies were more likely to achieve shorter median days (interquartile range) to full oral feeding [11 (6) days vs. 13 (11) days, P=0.058] and with lower number affecting necrotising enterocolitis (0 vs. 5, P=0.055).

    CONCLUSION: Early aggressive parenteral nutrition and early provision of mother's milk did not result in improved growth as evidenced by weight gain at discharge. However we found more breastfeeding babies, lower nosocomial infection and transfusion rates. Our findings suggest that implementing a more aggressive feeding policy supported by high level scientific evidence is able to improve important outcomes.
  16. Thong MK, Ho JJ, Khatijah NN
    Ann Hum Biol, 2005 Mar-Apr;32(2):180-7.
    PMID: 16096215 DOI: 10.1080/03014460500075332
    Birth defects are one of the leading causes of paediatric disability and mortality in developed and developing countries. Data on birth defects from population-based studies originating from developing countries are lacking. One of the objectives of this study was to determine the epidemiology of major birth defects in births during the perinatal period in Kinta district, Perak, Malaysia over a 14-month period, using a population-based birth defect register. There were 253 babies with major birth defects in 17,720 births, giving an incidence of 14.3/1000 births, a birth prevalence of 1 in 70. There were 80 babies with multiple birth defects and 173 with isolated birth defects. The exact syndromic diagnosis of the babies with multiple birth defects could not be identified in 18 (22.5%) babies. The main organ systems involved in the isolated birth defects were cardiovascular (13.8%), cleft lip and palate (11.9%), clubfeet (9.1%), central nervous system (CNS) (including neural tube defects) (7.9%), musculoskeletal (5.5%) and gastrointestinal systems (4.7%), and hydrops fetalis (4.3%). The babies with major birth defects were associated with lower birth weights, premature deliveries, higher Caesarean section rates, prolonged hospitalization and increased specialist care. Among the cohort of babies with major birth defects, the mortality rate was 25.2% during the perinatal period. Mothers with affected babies were associated with advanced maternal age, birth defects themselves or their relatives but not in their other offspring, and significantly higher rates of previous abortions. The consanguinity rate of 2.4% was twice that of the control population. It is concluded that a birth defects register is needed to monitor these developments and future interventional trials are needed to reduce birth defects in Malaysia.
  17. Jaafar SH, Ho JJ, Lee KS
    Cochrane Database Syst Rev, 2016 Aug 26;2016(8):CD006641.
    PMID: 27562563 DOI: 10.1002/14651858.CD006641.pub3
    BACKGROUND: Mother-infant proximity and interactions after birth and during the early postpartum period are important for breast-milk production and breastfeeding success. Rooming-in and separate care are both traditional practices. Rooming-in involves keeping the mother and the baby together in the same room after birth for the duration of hospitalisation, whereas separate care is keeping the baby in the hospital nursery and the baby is either brought to the mother for breastfeeding or she walks to the nursery.

    OBJECTIVES: To assess the effect of mother-infant rooming-in versus separation on the duration of breastfeeding (exclusive and total duration of breastfeeding).

    SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 May 2016) and reference lists of retrieved studies.

    SELECTION CRITERIA: Randomised or quasi-randomised controlled trials (RCTs) investigating the effect of mother-infant rooming-in versus separate care after hospital birth or at home on the duration of breastfeeding, proportion of breastfeeding at six months and adverse neonatal and maternal outcomes.

    DATA COLLECTION AND ANALYSIS: Two review authors independently assessed the studies for inclusion and assessed trial quality. Two review authors extracted data. Data were checked for accuracy. We assessed the quality of the evidence using the GRADE approach.

    MAIN RESULTS: We included one trial (involving 176 women) in this review. This trial included four groups with a factorial design. The factorial design took into account two factors, i.e. infant location in relation to the mother and the type of infant apparel. We combined three of the groups as the intervention (rooming-in) group and the fourth group acted as the control (separate care) and we analysed the results as a single pair-wise comparison. Primary outcomesThe primary outcome, duration of any breastfeeding, was reported by authors as median values because the distribution was found to be skewed. They reported the overall median duration of any breastfeeding to be four months, with no difference found between groups. Duration of exclusive breastfeeding and the proportion of infants being exclusively breastfed at six months of age was not reported in the trial. There was no difference found between the two groups in the proportion of infants receiving any breastfeeding at six months of age (risk ratio (RR) 0.84, 95% confidence interval (CI) 0.51 to 1.39; one trial; 137 women; low-quality evidence). Secondary outcomesThe mean frequency of breastfeeds per day on day four postpartum for the rooming-in group was 8.3 (standard deviation (SD) 2.2), slightly higher than the separate care group, i.e. seven times per day. However, between-group comparison of this outcome was not appropriate since every infant in the separate care group was breastfed at a fixed schedule of seven times per day (SD = 0) resulting in no estimable comparison. The rate of exclusive breastfeeding on day four postpartum before discharge from hospital was significantly higher in the rooming-in group 86% (99 of 115) compared with separate care group, 45% (17 of 38), (RR 1.92; 95% CI 1.34 to 2.76; one trial, 153 women; low-quality evidence). None of our other pre-specified secondary outcomes were reported.

    AUTHORS' CONCLUSIONS: We found little evidence to support or refute the practice of rooming-in versus mother-infant separation. Further well-designed RCTs to investigate full mother-infant rooming-in versus partial rooming-in or separate care including all important outcomes are needed.

  18. Zaid ZA, Chan SC, Ho JJ
    Singapore Med J, 2007 Oct;48(10):895-9.
    PMID: 17909672
    A study was done between December 2005 and January 2006 to determine the prevalence of emotional disorders among medical students in a private medical school in Ipoh, Perak, Malaysia and to determine the demographical characteristics, contributing factors and the key person consulted for emotional problems.
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