1.The effect of cycled light exposure on clinical outcomes of preterm infants admitted in neonatal intensive care units
Roffell D. Felisilda ; Katrina Mae G. Lee ; Christine Corina Grace L. Basilla
The Philippine Children’s Medical Center Journal 2025;21(1):27-41
BACKGROUND:
Hospitalization in neonatal intensive care units (NICU) exposes preterm infants to adverse stimuli, including continuous 24-hour lighting. There is currently no standardized NICU layout advised for the best development of preterm neonates. This meta-analysis aimed to assess the impact of cycled light (CL) exposure on clinical outcomes in premature infants admitted to NICU as synthesized in previous studies.
MATERIALS AND METHODS:
This meta-analysis protocol was developed following the preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) statement. A search was performed in PubMed/MEDLINE, EMBASE, Scopus, and Cochrane databases using the MeSH/key words: ―light exposure‖ AND pre-term AND cycled AND (RCT OR trials OR ―randomized controlled trial). The pooled Mean Difference with corresponding 95% CI was computed for weight gain, duration until start of enteral feeding, and duration of ICU stay using the Mantel–Haenszel random-effect model.
RESULTS:
Nine studies were included. The pooled mean difference showed that among preterm infants who had cycled light exposure, average daily weight gain (MD=6.24 grams, 95%CI=1.36 to 11.13, p=0.01) was significantly higher than those with continuous light exposure. The average time to start enteral feeding (MD=-3.84 days, 95%CI=-7.56 to -0.13, p=0.04) and average ICU stay (MD=-8.43 days, 95%CI=-12.54 to -4.31, p<0.0001) among neonates who had cycled light exposure were significantly shorter.
CONCLUSION
Benefits were seen in preterm infants when exposed to cycled light as opposed to continuous light. CL exposed infants showed a daily weight gain that was 6.24 grams higher, on average, and began enteral feeding nearly 4 days sooner. It led to a decrease in the duration of ICU stay by around 8 to 9 days on average. Further trials to determine the impact of cycled light exposure on morbidity and mortality among preterm neonates is recommended.
Human
;
Male,Female
;
Systematic review
;
Meta-analysis
;
Infant, Premature
;
Intensive care units, Neonatal
;
Intensive care, Neonatal
;
Light
;
Lighting
;
Critical care
2.Effects of Vitamin D supplementation on pediatric attention deficit hyperactivity disorder: A meta-analysis and systematic review
Cheska Marie G. Latorre ; Anna Lizza Mañ ; alac
The Philippine Children’s Medical Center Journal 2025;21(1):42-55
OBJECTIVE:
Attention Deficit Hyperactivity Disorder (ADHD) is a common mental disorder in children. It is unclear how nutrition and dietary components relate to ADHD. Some studies suggest that children with ADHD have lower serum levels of vitamin D than healthy controls. In the current study, the effects of Vitamin D supplementation on ADHD were reviewed and analyzed using available literature.
MATERIALS AND METHODS:
A meta-analysis and systematic review were performed. Children less than 18 years old diagnosed with ADHD given Vitamin D supplementation or placebo were included. A search was performed in PubMed/MEDLINE, EMBASE, Scopus, Cochrane, and Google Scholar databases from inception to August 2024 using the MeSH keywords: "Vitamin D" AND (ADHD OR Attention Deficit Hyperactivity Disorder) AND (children OR pediatric OR adolescents) AND randomized controlled trial. Standardized Mean Difference (SMD) was used as an effect measure and pooled using random effects meta-analysis.
RESULTS:
The pooled SMS showed significantly lower ADHD scores (SMD=-0.59, 95%CI=-1.06 to -0.11, p=0.01), lower inattentive scores (SMD=-0.61, 95%CI=-1.00 to -0.23, p=0.002), and lower hyperactivity scores (SMD=-0.64, 95%CI=-1.08 to -0.20, p=0.004) in children given Vitamin D supplementation. The adverse events reported were minor only and did not vary significantly between intervention and control groups.
CONCLUSION
Vitamin D treatment as an adjuvant to methylphenidate alleviated ADHD symptoms without significant adverse effects, correlating with enhanced vitamin D levels. Given the robust evidence and well-structured randomized controlled trials, we strongly advocate for the integration of vitamin D supplementation with ADHD treatment.
Human
;
Male,Female
;
Adolescent: 13-18 yrs old
;
Child Preschool: 2-5 yrs old
;
Child: 6-12 yrs old
;
Vitamin D
;
meta-analysis
;
systematic review
3.Effectiveness of curcumin in sarcopenia: A systematic review protocol.
Maria Grace De Guzman ; Jojo Evangelista ; Steve Milanese ; Raymond Rosales
Philippine Journal of Allied Health Sciences 2024;8(1):38-44
BACKGROUND
Sarcopenia is a multifactorial disease with a progressive decline in skeletal muscle mass, muscle strength, and physical performance. Curcumin is a nutraceutical investigated for its anti-inflammatory and antioxidant properties. It is inexpensive, accessible, and considered a safe and practical approach to help alleviate symptoms of sarcopenia and improve muscle mass and function. Objective: This systematic review aims to obtain more conclusive evidence on the effectiveness of curcumin among adults 40 years and above with sarcopenia in improving muscle pain, strength, performance, and muscle morphology.
OBJECTIVEThis systematic review aims to obtain more conclusive evidence on the effectiveness of curcumin among adults 40 years and above with sarcopenia in improving muscle pain, strength, performance, and muscle morphology.
METHODOLOGYThe review will be conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. It will focus on any interventional studies on curcumin for adults diagnosed with sarcopenia, with the following outcomes: clinically significant improvement in pain, muscle strength and performance, quality of life, and improvement in muscle morphology. Studies completed until 2024 will be included. The databases to be searched include PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), CINAHL Plus (EBSCOhost), Embase, and Web of Science. The identified citations will be collated in Zotero and uploaded to Covidence© to be assessed using the eligibility criteria and systematically reviewed by two independent reviewers. The CASP Randomised Controlled Trial Checklist will be utilized to assess the quality of the included studies.
EXPECTED RESULTSThe results will serve as a groundwork for future sarcopenia research among allied health specialists, particularly those in the field of physiotherapy - students, healthcare practitioners, and academicians (PROSPERO registration number: CRD42023448750).
Sarcopenia ; Curcumin ; Systematic Review
4.How to conduct a systematic review and meta-analysis.
Krysten Marie R. Yayen ; John Michael D. Deblois ; Ma. Rosario Bernardo-Lazaro
The Filipino Family Physician 2024;62(1):51-66
Systematic reviews and meta-analysis combine results and analysis of data from different primary studies (e.g. cross-sectional studies, case-control studies, cohort studies) conducted on similar or related research topics. They are secondary studies that guide clinical decision-making, delivery of care and policy development. This article aims to discuss how to conduct a systematic review and meta-analysis. The steps in conducting a systematic review and meta-analysis include: 1) Identify the purpose including formulating the research question and validating the purpose of the literature scan, 2) Formulate the objectives, 3) Literature search including selection of studies based on population, intervention, comparison and outcome, 4) Retrieval of full text articles, 5) Critical appraisal of articles, 6) Data extraction, 7) Data analysis and 8) Writing the final report. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) is a useful guide in conducting and write systematic review and meta-analysis. While ethics approval is not usually required for systematic review and meta-analysis, authors of such study should still observe good practices including avoiding plagiarism, maintaining transparency and ensuring data accuracy.
Systematic Review ; Meta-analysis
5.Probiotic supplementation and glomerular filtration rate improvement in chronic kidney disease: A systematic review and meta-analysis.
Mark Bennett M. REROMA ; Grace D. JUNTILLA ; Heidii CHUA-TAN
The Filipino Family Physician 2024;62(2):317-323
BACKGROUND
Chronic kidney disease (CKD) poses a global health threat with significant morbidity and mortality. Despite current therapies, there is a need for innovative interventions to slow CKD progression. Probiotic supplementation shows promise due to its positive effects on gastrointestinal health and inflammation. However, existing research is inconclusive, necessitating a meta-analysis to assess probiotics’ impact on CKD outcomes.
OBJECTIVETo evaluate the existing scientific literature among probiotic supplementation and the improvement in glomerular filtration rate (GFR) among chronic kidney disease (CKD) patients compared to placebo treatment.
METHODSA comprehensive search of electronic databases was conducted to identify relevant studies published up to 2023. Studies that meet the predefined eligibility criteria were included. Data extraction was performed, and methodological quality and risk of bias assessment was conducted for each study. Effect measures, such as mean differences or standardized mean differences, were used to quantify the association between probiotic supplementation and GFR improvement. The random-effects model was applied to estimate the overall effect size, and subgroup analyses were performed to explore potential sources of heterogeneity. Publication bias was assessed, and sensitivity analyses was conducted to evaluate the robustness of the findings.
RESULTSThe meta-analysis encompassed three randomized controlled trials (RCTs) conducted from 2017 to 2023, involving 121 chronic kidney disease (CKD) patients. The analysis focused on the impact of probiotic supplementation on CKD, examining Glomerular Filtration Rate (GFR), Blood Urea Nitrogen (BUN), and Urine Protein Creatinine Ratio (UPCR). While no significant distinctions were found in GFR and BUN changes between probiotics and placebos, there was a statistically significant reduction in UPCR associated with probiotic supplementation in one study. Notably, considerable heterogeneity in GFR and significant heterogeneity in UPCR reduction were observed among the trials. Sensitivity analysis, excluding studies with small sample sizes or high bias risk, remained consistent with overall findings.
CONCLUSIONThe meta-analysis indicated no significant impact of probiotic supplementation on GFR and BUN, but there was a notable reduction in Urine UPCR. The observed heterogeneity among the studies calls for cautious interpretation due to variations in study designs, patient populations, and probiotic formulations. While the results suggest a potential role for probiotics in reducing proteinuria in chronic kidney disease (CKD) patients, the need for further research with larger sample sizes and standardized methodologies is emphasized to establish definitive conclusions.
Human ; Probiotics ; Glomerular Filtration Rate ; Chronic Kidney Diseases ; Renal Insufficiency, Chronic ; Meta-analysis ; Systematic Review
6.Chinese Medicine External Therapy Combined with Conventional Drug Treatment for Rheumatoid Arthritis: A Systematic Review and Meta-analysis
Sin Wei Tang ; Zhi Hang Wong ; Ket Li Ho ; Dahlya Qasryna Binti Zulkifli ; Jia Wen Koo ; Yung Chein Yong
International e-Journal of Science, Medicine and Education 2024;18(1):40-65
Introduction:
Chinese medicine (CM) external therapy is commonly used to treat rheumatoid arthritis (RA) in combination with conventional drug. This study aims to provide a comprehensive synthesis on the efficacy of CM external therapy combined with conventional drug treatment in RA.
Methods:
Randomised controlled trials (RCTs) experimenting the efficacy of CM external therapy (acupuncture, moxibustion and CM fumigation) combined with conventional drug in comparison with conventional drug only in RA patients were collected from PubMed, Medline, Cochrane Central of Controlled Trials (CENTRAL), ClinicalTrials.gov, China National Knowledge Infrastructure (CNKI), and Wanfang databases. Quality was assessed using the Cochrane Risk of Bias Tool. The outcome measures which include Disease Activity Score-28 (DAS28), Visual Analogue Scale (VAS), Swollen Joint Count (SJC), Tumour Necrosis Factor (TNF-α), serum levels of C-reactive Protein (CRP) and Erythrocyte Sedimentation Rate (ESR) were analysed using Review Manager 5.4.1 and GRADEpro GDT online software.
Results:
Fifty RCTs fulfilling the criteria were included. Although some level of efficacy was statistically noted on the use of CM external therapies, their certainty levels are mixed, ranging only in between moderate and low.
Conclusions
Mixed levels of certainty has hindered the drawing of conclusion. The addition of CM external therapies to conventional drug treatment may provide some benefits in RA. Further clinical trials with considerations in minimising the risk of bias are recommended to provide more high-quality evidence in the effect of CM external therapies as a complementary treatment in RA.
Medicine, Chinese Traditional
;
Fumigation
;
Meta-Analysis [Publication Type]
;
Moxibustion
;
Arthritis, Rheumatoid
;
Systematic Review [Publication Type]
7.Prevalence and Associated Factors of General Health Literacy Among Adults in Malaysia: A Systematic Review and Meta-Analysis
Cheong Lieng Teng ; Pei Kuan Lai ; Hian Jie Heng ; Mun Hong Tiew ; Chun Wai Chan
International e-Journal of Science, Medicine and Education 2024;18(3):33-47
Introduction:
There is an increasing number of publications on health literacy from Malaysia. We conducted a systematic review of Malaysian studies to determine the prevalence of limited general health literacy and the associated factors among Malaysian adults.
Materials and Methods:
We conducted a comprehensive search for Malaysian studies on health literacy using PubMed, Scopus and Google Scholar. Cross-sectional studies that measured general health literacy using specific rating scales among adults in Malaysia were retrieved for qualitative analysis. Quantitative synthesis of the prevalence of limited health literacy measured using two rating scales (Newest Vital Sign, NVS and various versions of European Health Literacy Survey, HLS) was performed using random effect model.
Results:
Twenty-five studies measuring general health literacy were retrieved for qualitative analysis; the majority were various versions of HLS and NVS. Pooled prevalence rates of limited health literacy were: HLS: 48.59%; NVS: 91.41%. Subgroup analysis of participant type revealed prevalence of limited health literacy measured using NVS was lower in clinical samples vs non-clinical samples (85.67% vs 94.70%). Moderator analysis revealed a small effect of ethnicity on prevalence of health literacy measured using HLS. Assessment of included studies showed very few of them had statistically significant associations between socio-demographic factors and limited health literacy.
Conclusion
Prevalence of limited health literacy in Malaysian adults was very high: almost one in two adults in HLS studies and nine out of ten adults in NVS studies. Socio-demographic factors associated with limited health literacy were inconsistent with other studies.
Adult
;
Health Literacy
;
Malaysia
;
Prevalence
;
Systematic Review [Publication Type]
8.Efficacy and safety of ultra-high dose Methylcobalamin vs Placebo among patients with early-stage Amyotrophic Lateral Sclerosis (ALS): A systematic review
Judy Ann B. Surtida-Zapanta ; Marissa T. Ong
Philippine Journal of Neurology 2023;26(2):20-30
Background:
Amyotrophic lateral sclerosis is one of the neurodegenerative disorders with very limited
treatment options owing to its progressive course and diverse pathophysiology. Majority of
patients succumb to death within three to five years after the onset of symptoms, mostly due to
respiratory failure. This study aimed to determine the efficacy and safety of ultra-high dose
methylcobalamin versus placebo among patients with early-stage amyotrophic lateral sclerosis
in terms of slowing down functional decline.
Methods:
MEDLINE, CENTRAL, and Google Scholar databases were searched from inception up to
September 23, 2023. The impact of treatments was measured by risk ratios with 95%
confidence interval. The overall certainty of the evidence was evaluated using GRADE.
Results:
No significant difference was detected for the outcome median change in the ALSFRS-R score
for the whole cohort. Post-hoc analyses showed that ultra-high-dose methylcobalamin
decreased ALSFRS-R scores (p=0.003 for 50 mg and p=0.01 for all methylcobalamin groups) in
a dose-responsive manner. Mean difference was 1.97 in favor of methylcobalamin (95% CI,
0.44- 3.50; P = .01).
Conclusion
Ultra-high dose methylcobalamin can reduce ALSFRS-R scores of patients in its early stage but
the scarcity of clinical trials makes it difficult to support a robust conclusion. Ultra-high dose
methylcobalamin therapy remains to be investigational.
Amyotrophic Lateral Sclerosis
;
Systematic Review
9.Psychometric properties of instruments to measure the well-being of young children: A systematic review protocol
Paulin Grace Morato-Espino ; Jose Ma. Rafael Ramos ; Ivan Neil Gomez
Philippine Journal of Allied Health Sciences 2023;7(1):43-48
Background:
Child well-being is an important outcome and has received attention from researchers for decades. Until recently, there has been
difficulty in drawing conclusions from these studies because of the wide variety of measures used.
Objective:
This systematic review aims to summarize and assess the measurement properties of existing child well-being instruments presented in the literature.
Methods:
This systematic
review will focus on studies that evaluated the psychometric properties of instruments to measure the well-being of children ages two to seven.
The search strategy will aim to locate studies in the English language completed from 2000 to 2023. The databases to be searched include MEDLINE
via PubMed, CINAHL Plus, and Psychology & Behavioral Sciences Collection via EBSCOhost. Proquest Dissertations and Theses, Google Scholar, and
Research Gate will be used to search unpublished studies. Following the search, all identified citations will be collated in Mendeley. The full text of
selected citations will be uploaded to JBI-SUMARI, assessed in detail against the inclusion criteria, and critically appraised using the COSMIN Risk
of Bias checklist by two independent reviewers. Data will be extracted using JBI-SUMARI by one reviewer and verified by another. Findings will be
reported using a narrative synthesis and tables. If possible, a meta-analysis will be performed. The evidence for each measurement property for
each instrument will be compared against acknowledged standards for appropriate measurement characteristics using the COSMIN-proposed
"criteria for good measurement properties."
Expected Results:
This systematic review will provide further evidence regarding the measurement
properties of instruments used to measure the well-being of children, specifically in the early years. The findings of this study will be disseminated
through a conference presentation and publication in a peer-reviewed journal
PROSPERO registration number
CRD4202342T8953
Systematic Review
10.Using a systematic review and meta-analysis for clinical decision
Nenacia Ranali Nirena P. Mendoza ; Cherry Bernardo-Lazaro
The Filipino Family Physician 2022;60(1):42-47
A systematic review summarizes the results of a number of individual studies that address a focused clinical question. It may be accompanied by a meta-analysis, which is a quantitative method of combining the results of all these studies in order to come up with a summary statistic of the overall effect of an intervention. Single studies may be unrepresentative of the total body of evidence, that is why combining the results of several studies in a systematic review increases precision, provides better estimates of effect, and includes a greater range of patients thus facilitating better clinical decision making. This must be done in a systematic and reproducible manner.
Systematic Review
;
Meta-Analysis


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