Natthapat Thongsak

Government of Thailand — Thailand

Mathematics · Physical Sciences

7h-index114citations24works2.82yr avg
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Research Topics

Survey Sampling and Estimation Techniques(12), COVID-19 epidemiological studies(6), Air Quality and Health Impacts(5), Statistical Methods and Bayesian Inference(2), Global Cancer Incidence and Screening(2)

Publications24 total

The recurrence and mortality risk in Luminal A breast cancer patients who lived in high pollution area
PLoS ONE·2025· 2 citedOpen Access
Impact of PM2.5 exposure on acute toxicities and survival outcomes in radiotherapy for cervical cancer
Scientific Reports·2025Open Access
Estimation of COVID-19 Incidence based on PM2.5 in Chiang Mai, Thailand using New Transformed Estimators in the Presence of Missing Observations
WSEAS TRANSACTIONS ON SYSTEMS·2025Open Access
A Class of Regression-type Estimators for Population Mean Utilizing Transformed Variable with Missing Data with an Application to COVID-19
Lobachevskii Journal of Mathematics·2025· 1 cited
A Class of Combined Population Mean Estimators Using Transformed Variables in Double Sampling: A Case Study on Fine Particulate Matter in Chiang Rai, Thailand
Lobachevskii Journal of Mathematics·2024
Air pollutants and primary liver cancer mortality: a cohort study in crop-burning activities and forest fires area
Frontiers in Public Health·2024· 4 citedOpen Access
A Class of Transformed Population Mean Estimators with an Application to Missing COVID-19 Data in Chiang Mai, Thailand
Lobachevskii Journal of Mathematics·2024· 2 cited
A Class of Ratio Estimators for Estimating Population Mean Using a Transformed Auxiliary Variable Under Stratified Random Sampling
Lobachevskii Journal of Mathematics·2024· 4 cited
Ambient air pollution as a time-varying covariate in the survival probability of childhood cancer patients in the upper Northern Thailand
PLoS ONE·2024· 3 citedOpen Access
New Transformed Estimators in the Presence of Missing Data: A Case Study on COVID-19
Lobachevskii Journal of Mathematics·2024· 4 cited
Transformed Regression Type Estimators in the Presence of Missing Observations: Case Studies on COVID-19 Incidence in Chiang Mai, Thailand
WSEAS TRANSACTIONS ON BIOLOGY AND BIOMEDICINE·2024· 6 citedOpen Access
A Class of Population Mean Estimators in Stratified Random Sampling: A Case Study on Fine Particulate Matter in the North of Thailand
WSEAS TRANSACTIONS ON MATHEMATICS·2024· 8 citedOpen Access
A Combined Transformed Variable for Population Mean Estimators When Missing Data Occur with an Application to COVID-19 Incidence
WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL·2023· 2 citedOpen Access
Factors Associated with Suspected Developmental Delay in Thai Children Born with Low Birth Weight or Asphyxia
Maternal and Child Health Journal·2023· 2 citedOpen Access
A new imputation method for population mean in the presence of missing data based on a transformed variable with applications to air pollution data in Chiang Mai, Thailand
Journal of Air Pollution and Health·2023· 3 citedOpen Access
Classes of Population Mean Estimators using Transformed Variables in Double Sampling
GAZI UNIVERSITY JOURNAL OF SCIENCE·2023· 3 citedOpen Access
Ambient Air Pollution as a Time-Varying Covariate in the Survival Probability Of Childhood Cancer Patients in the Upper Northern Thailand
SSRN Electronic Journal·2023· 1 citedOpen Access
Bias and mean square error reduction by changing the shape of the distribution of an auxiliary variable: application to air pollution data in Nan, Thailand
Mathematical Population Studies·2022· 8 cited
A Combined Family of Dual To Ratio Estimators Using a Transformed Auxiliary Variable
Lobachevskii Journal of Mathematics·2022· 6 cited
Risk Factors Associated with Loss to Follow-up Among Transgender Women Receiving HIV Pre-exposure Prophylaxis in Chiang Mai province, Thailand
AIDS and Behavior·2022· 7 citedOpen Access
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Frequent Co-authors

Nuanpan Lawson(14), Patrinee Traisathit(10), Pimwarat Srikummoon(8), Salinee Thumronglaohapun(8), Nawapon Nakharutai(7), Imjai Chitapanarux(7), Phonpat Hemwan(6), Titaporn Supasri(3), Titaporn Supasri(3), Sukon Prasitwattanaseree(2), Walaithip Bunyatisai(2), Lalita Sathitsamitphong(2), Kasiramart Moolkham(1), Narong Maneeton(1), Benchalak Maneeton(1), Prapaporn Suprasert(1), Patumrat Sripan(1), Natthaporn Manojai(1), Rathawit Apiputhipan(1), Nicha Rongram(1)