Chayanis Kositamongkol

Dr. Chayanis Kositamongkol

Mahidol University, Bangkok, Krung Thep Maha Nakhon, Thailand
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Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 August 2023 in Scientific Reports
Verified
Journal Article
Open access
PDF file
CWChaiwat Washirasaksiri
Chaiwat Washirasaksiri
NSNaruemit Sayabovorn
Naruemit Sayabovorn
PAPinyapat Ariyakunaphan
Pinyapat Ariyakunaphan
CKChayanis Kositamongkol
Chayanis Kositamongkol
TCThanet Chaisathaphol
Thanet Chaisathaphol
WSWeerachai Srivanichakorn
Weerachai Srivanichakorn
Few studies have identified the metabolic consequences of the post-acute phase of nonsevere COVID-19. This prospective study examined metabolic outcomes and associated factors in nonsevere, RT-PCR-confirmed COVID-19. The participants’ metabolic parameters, the prevalence of long-term multiple metabolic abnormalities (≥ 2 components), and factors influencing the prevalence were assessed at 1, 3, and 6 months post-onset. Six hundred individuals (mean age 45.5 ± 14.5 years, 61.7% female, 38% high-risk individuals) with nonsevere COVID-19 attended at least one follow-up visit. The prevalence of worsening metabolic abnormalities was 26.0% for BMI, 43.2% for glucose, 40.5% for LDL-c, 19.1% for liver, and 14.8% for C-reactive protein. Except for lipids, metabolic-component abnormalities were more prevalent in high-risk hosts than in healthy individuals. The prevalence of multiple metabolic abnormalities at the 6-month follow-up was 41.3% and significantly higher in high-risk than healthy hosts (49.2% vs 36.5%; P = 0.007). Factors independently associated with a lower risk of these abnormalities were being female, having dyslipidemia, and receiving at least 3 doses of the COVID-19 vaccine. These findings suggest that multiple metabolic abnormalities are the long-term consequences of COVID-19. For both high-risk and healthy individuals with nonsevere COVID-19, healthcare providers should monitor metabolic profiles, encourage healthy behaviors, and ensure complete vaccination.

29 June 2023 in Frontiers in Public Health
Verified
Journal Article
Open access
Thundon NgamprasertchaiThundon Ngamprasertchai
Thundon Ngamprasertchai
CKChayanis Kositamongkol
Chayanis Kositamongkol
Saranath LawpoolsriSaranath Lawpoolsri
Saranath Lawpoolsri
Pinyo RattanaumpawanPinyo Rattanaumpawan
Pinyo Rattanaumpawan
Viravarn LuviraViravarn Luvira
Viravarn Luvira
PPPochamana Phisalprapa
Pochamana Phisalprapa
Introduction: This study aims to assess the economic impact of introducing the 13-valent pneumococcal conjugate vaccine (PCV13) and 23-valent pneumococcal polysaccharide vaccine (PPSV23) to Thai older adult aged ≥ 65 years who are healthy or with chronic health conditions and immunocompromised conditions from a societal perspective in order to introduce the vaccine to Thailand’s National Immunization Program for the older adult.Methods: A Markov model was adopted to simulate the natural history and economic outcomes of invasive pneumococcal diseases using updated published sources and Thai databases. We reported analyses as incremental cost-effectiveness ratios (ICER) in USD per quality-adjusted life year (QALY) gained. In addition, sensitivity analyses and budget impact analyses were conducted.Results: The base-case analysis of all interventions (no vaccinations [current standard of care in Thailand], PPSV23, and PCV13) showed that PPSV23 was extendedly dominated by PCV13. Among healthy individuals or those with chronic health conditions, ICER for PCV13 was 233.63 USD/QALY; meanwhile, among individuals with immunocompromised conditions, ICER for PCV13 was 627.24 USD/QALY. PCV13 are economical vaccine for all older adult Thai individuals when compared to all interventions.Conclusions: In the context of Thailand, PCV13 is recommended as the best buy and should be primarily prioritized when both costs and benefits are considered. Also, this model will be beneficial to the two-next generation pneumococcal vaccines implementation in Thailand.

25 March 2021 in BMC Gastroenterology
Verified
Journal Article
Open access
PDF file
PPPochamana Phisalprapa
Pochamana Phisalprapa
RPRatthanon Prasitwarachot
Ratthanon Prasitwarachot
CKChayanis Kositamongkol
Chayanis Kositamongkol
PHPranaidej Hengswat
Pranaidej Hengswat
WSWeerachai Srivanichakorn
Weerachai Srivanichakorn
NCNathorn Chaiyakunapruk
Nathorn Chaiyakunapruk
Background: Non-alcoholic steatohepatitis (NASH) has been recognised as a significant form of chronic liver disease and a common cause of cirrhosis and hepatocellular carcinoma, resulting in a considerable financial burden on healthcare resources. Currently, there is no information regarding the economic burden of NASH in low- and middle-income countries (LMICs). The aim of this study was to estimate the economic burden of NASH in Thailand as a lesson learned for LMICs. Methods: To estimate the healthcare costs and prevalence of NASH with significant fibrosis (fibrosis stage ≥ 2) in the general Thai population, an eleven-state lifetime horizon Markov model with 1-year cycle length was performed. The model comprised Thai population aged 18 years and older. The cohort size was based on Thailand Official Statistic Registration Systems. The incidence of NASH, transitional probabilities, and costs-of-illness were based on previously published literature, including systematic reviews and meta-analyses. The age-specific prevalence of NASH was based on Thai NASH registry data. Costs were expressed in 2019 US Dollars ($). As we undertook analysis from the payer perspective, only direct medical costs were included. All future costs were discounted at an annual rate of 3%. A series of sensitivity analyses were performed. Results: The estimated total number of patients with significant NASH was 2.9 million cases in 2019, based on a NASH prevalence of 5.74%. The total lifetime cost of significant NASH was $15.2 billion ($5,147 per case), representing approximately 3% of the 2019 GDP of Thailand. The probabilistic sensitivity analysis showed that the lifetime costs of significant NASH varied from $11.4 billion to $18.2 billion. Conclusions: The economic burden associated with NASH is substantial in Thailand. This prompts clinicians and policy makers to consider strategies for NASH prevention and management.

5 February 2021 in Medicine
Verified
Journal Article
Open access
SSSurasak Saokaew
Surasak Saokaew
SKSukrit Kanchanasurakit
Sukrit Kanchanasurakit
KTKanitta Thawichai
Kanitta Thawichai
PDPrommanee Duangprom
Prommanee Duangprom
MWMonnapha Wannasri
Monnapha Wannasri
PPPochamana Phisalprapa
Pochamana Phisalprapa
Background: Controversy remains concerning the association of the all-cause mortality risk of hospitalized cardiovascular disease (CVD) patients with non-alcoholic fatty liver disease (NAFLD). This study investigated the risks of all-cause mortality among hospitalized CVD patients with NAFLD. Methods: We used related keywords to search for studies in 3 electronic databases: PubMed, EMBASE, and Cochrane Library. All eligible studies published up to April 2020 were reviewed. The findings of those studies reporting the mortality outcomes of hospitalized CVD patients with and without NAFLD were examined, and the various study results were pooled and analyzed using a random-effects model. A quality assessment using the Newcastle–Ottawa scale was performed on the studies selected for inclusion in a meta-analysis. Results: A total of 2135 studies were found, of which 3 were included in this meta-analysis. All studies were considered good quality. The mean age of the patients in the analysis was 73 years, and about half of them were men. The comorbidities reported were hypertension, diabetes mellitus, and dyslipidemia. The results showed that hospitalized CVD patients with NAFLD were at a significantly higher risk of all-cause mortality than non-NAFLD patients (adjusted hazard ratio of 2.08 [95% confidence interval, 1.56–2.59], P < .001). The included studies showed low heterogeneity (I 2 = 0.0%, P = .473), and Begg and Egger tests revealed no apparent publication bias (P = .327 and P = .682, respectively). Conclusions: Hospitalized CVD patients with NAFLD were at a higher risk of all-cause mortality than those without NAFLD. More studies that further explore this association are needed.

1 January 2021 in Journal of Medical Economics
Verified
Journal Article
Open access
PPPochamana Phisalprapa
Pochamana Phisalprapa
SNSurachat Ngorsuraches
Surachat Ngorsuraches
TWTanatape Wanishayakorn
Tanatape Wanishayakorn
CKChayanis Kositamongkol
Chayanis Kositamongkol
SSSiripen Supakankunti
Siripen Supakankunti
NCNathorn Chaiyakunapruk
Nathorn Chaiyakunapruk
Colorectal cancer (CRC) is one of the public health burdens that can be lowered by early detection. This study aims to examine the preferences and willingness-to-pay of a population at risk for CRC...

11 December 2020 in Medicine
Verified
Journal Article
Open access
SSSurasak Saokaew
Surasak Saokaew
CKChayanis Kositamongkol
Chayanis Kositamongkol
PCPhunchai Charatcharoenwitthaya
Phunchai Charatcharoenwitthaya
WSWeerachai Srivanichakorn
Weerachai Srivanichakorn
CWChaiwat Washirasaksiri
Chaiwat Washirasaksiri
PPPochamana Phisalprapa
Pochamana Phisalprapa
Over half of metabolic syndrome (MetS) patients have nonalcoholic fatty liver disease (NAFLD). To prevent its complications, standard routine screening is required, but the human-resource and budgetary implications need to be taken into consideration. This study compared the performances of 4 noninvasive scoring systems in predicting NAFLD in MetS patients. They were the fatty liver index, hepatic steatosis index, lipid accumulation product index, and nonalcoholic fatty liver disease in metabolic syndrome patients scoring system (NAFLD-MS). Scores were determined for 499 MetS patients, including 249 patients in a type 2 diabetes mellitus (T2DM) subgroup. Ultrasonography was used to diagnose NAFLD. The accuracies and performance of the scoring systems were analyzed using published cutoff values, and comparisons were made of their areas under receiver operating characteristic curves, sensitivities, specificities, positive and negative predictive values, and likelihood ratios. NAFLD was detected in 68% of the MetS patients and 77% of the MetS patients with T2DM. According to the areas under receiver operating characteristic curves, fatty liver index and hepatic steatosis index provided better performances in predicting NAFLD. NAFLD-MS provided the highest specificity of 99% among the MetS patients as a whole, and it provided even better accuracy with similar performance when applied to the subgroup of MetS patients with T2DM. The maximum cost avoidance from unnecessary ultrasonography was also reported by using NAFLD-MS. In terms of simplicity and ease of calculation, the lipid accumulation product index and NAFLD-MS are preferred. All 4 scoring systems proved to be acceptable for predicting NAFLD among MetS and T2DM patients in settings where the availability of ultrasonography is limited. NAFLD-MS provided the highest specificity and cost avoidance, and it is simple to use. All 4 systems can help clinicians decide further investigations.