Journal of Biostatistics and Epidemiology最新文献

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Investigation on Determinants and Choice of Contraceptive Usage among Nigeria Women of Reproductive Age 尼日利亚育龄妇女避孕药具使用决定因素及选择调查
Journal of Biostatistics and Epidemiology Pub Date : 2023-10-31 DOI: 10.18502/jbe.v9i1.13975
Alabi Waheed Banjoko, Waheed Babatunde Yahya, Mohammed Kabir Garba, Razaq Bayo Afolayan, Kazeem Adesina Dauda, Dorcas Damilola Adewara
{"title":"Investigation on Determinants and Choice of Contraceptive Usage among Nigeria Women of Reproductive Age","authors":"Alabi Waheed Banjoko, Waheed Babatunde Yahya, Mohammed Kabir Garba, Razaq Bayo Afolayan, Kazeem Adesina Dauda, Dorcas Damilola Adewara","doi":"10.18502/jbe.v9i1.13975","DOIUrl":"https://doi.org/10.18502/jbe.v9i1.13975","url":null,"abstract":"Introduction: Contraception is the intentional prevention of conception and Sexually Transmitted Diseases using devices. This study investigates the prevalence, use and choice of different contraceptive methods among Nigeria women of reproductive age (15 – 49 years).&#x0D; Methods: This study utilized the most current dataset from the National Demographic and Health Survey (NDHS). Chi-squares tests of Homogeneity of proportion was utilized to validate the equality of proportions for the distinct groups of contraception methods. Also, Multinomial logistic regression was employed to obtain the determinants of contraceptive choices among the selected factors.&#x0D; Results: As reveal in this study, 83.86% of Nigeria women within the reproductive age do no use any method of contraceptives while only 16.14% use one form of contraceptives. Although, all the selected factors (respondent’s age, respondent’s access to radio, respondent’s access to television, respondent’s place of residence, respondent’s geopolitical region, respondent’s husband’s education level, respondent’s husband’s occupation, respondent’s religion affiliation, respondent’s response to desire for more children, respondent’s husband’s age, and respondent’s number of children born) contributed significantly (p-value < 0.05) to the choice of contraceptive usage in this study, certain level(s) of some factors such as women from the SouthWest region, women with more desire for children and women within the age bracket 20 – 24 and 45 – 49 are not significant to the usage of contraception among Nigeria women. The significant factors observed in this study indicated either an increased or decreased risk in the usage of contraceptive methods.&#x0D; Conclusion: The choice of contraceptive methods used by Nigerian women is influenced by most of the selected maternal and social-demographic factors used in this study. However, enlightenment on the important and use of contraceptives are needed to be put on media to increase the usage of contraceptives among Nigerian women.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Modification on Intra Class Correlation Estimation for Ordinal Scale Variable Using Latent Variable Model 隐变量模型对有序尺度变量类内相关估计的改进
Journal of Biostatistics and Epidemiology Pub Date : 2023-10-31 DOI: 10.18502/jbe.v9i1.13972
Samira Chaibakhsh, Asma Pourhoseingholi
{"title":"A Modification on Intra Class Correlation Estimation for Ordinal Scale Variable Using Latent Variable Model","authors":"Samira Chaibakhsh, Asma Pourhoseingholi","doi":"10.18502/jbe.v9i1.13972","DOIUrl":"https://doi.org/10.18502/jbe.v9i1.13972","url":null,"abstract":"Introduction: A common way for computing test-retest reliability is Intra Class Correlation which was developed for continuous variables. But it widely used to assess test-retest reliability in questionnaires with Likert scales. Most of the time consecutive numbers regarded as option labels of a question. If the probability of choosing options be the same, using this method is logic, otherwise it is not. Therefore, in this study a modified estimator of ICC is proposed to improve the estimation of ICC for ordinal scale by using latent variable model.&#x0D; Methods: In this method test-retest answers were considered as bivariate variables and cumulative Probit latent variable model was fitted. A simulation study with N=1500 replicates was conducted to compare the ICC estimations of Likert scale approach with a latent variable approach. Different sample sizes (n=20, 30) was generated with different correlation parameters. The simulations were repeated for questions with 3 and 5 options with different probability of selecting options of a question. After that the two approaches were run on Beck for suicidal ideation questionnaire.&#x0D; Results: In general the difference between Likert scale approach and latent variable approach were higher in 3 question options compared to 5 and also by increasing sample size and correlation between bivariate data, Root Mean Square Errors and bias were decreased. Assuming different probabilities for options, there was a considerably difference between Root Mean Square Errors, bias and standard deviation of estimation of ICC in two models. Using latent variable approach resulted less bias, SD and Root Mean Square Errors especially in lower sample sizes.&#x0D; Conclusion: Simulations showed when the probability of choosing options of a question are skewed, using this method reduced Root Mean Square Errors especially when the options are less. This method was affected more on standard deviation compare to bias of estimations.&#x0D;","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Space-Time Clusters and Ambient Temperature Effects on Non-Toxigenic Vibrio Cholerae in Russia from 2005 To 2021 2005 - 2021年俄罗斯非产毒霍乱弧菌时空簇检测及环境温度效应
Journal of Biostatistics and Epidemiology Pub Date : 2023-10-31 DOI: 10.18502/jbe.v9i1.13978
Vadim Leonov
{"title":"Detection of Space-Time Clusters and Ambient Temperature Effects on Non-Toxigenic Vibrio Cholerae in Russia from 2005 To 2021","authors":"Vadim Leonov","doi":"10.18502/jbe.v9i1.13978","DOIUrl":"https://doi.org/10.18502/jbe.v9i1.13978","url":null,"abstract":"Introduction: The identification of climate temperature-sensitive pathogens and infectious diseases is essential in addressing health risks resulting from global warming. Such research is especially crucial in regions where climate change may have a more significant impact like Russia. Recent studies have reasoned that the abundance of non-toxigenic V. cholerae is environmentally driven and can be part of early global warming signals for Russian territory. The aim of the study is to investigate the spatial-temporal trends and thermo-climatic sensitivity of non-toxigenic V. cholerae abundance in Russia.&#x0D; Methods: This study employed Kulldorff’s space-time statistics to identify persistent clusters of the V. cholerae ctx- isolation and areas for exploring temperature-depended patterns of the vibrio distribution. Correlation analysis was used to identify regions with temperature-driven Vibrio abundance in water samples.&#x0D; Results: The spatial analysis detected 16 persistent (7-8 year) clusters of V. cholerae ctx- across the study period 2005-2021. The number of clusters with RR &gt;1 abandoning from the south to the north and the total number of persistent clusters (9) is greater in the period of 2014(5)-2021 compared with the period 2005-2013 (7). A distinct significant thermo-climatic effect on the abundance of V. cholerae ctx- in water basins was found in three Russian regions with temperate marine (the Kaliningrad region) and sharp continental climatic conditions (the Irkutsk region and the Republic of Sakha). The temperature and Vibrio prevalence trend curves are peaky (the Kaliningrad region and the Republic of Sakha) or bell-shaped (the Irkutsk region) changed and closely followed together.&#x0D; Conclusion: The persistent clusters should become targeted areas to improve sanitation conditions. The study offers valuable outcomes to support simplified empirical evaluations of the potential hazards of vibrio abundance that might be useful locally for public health authorities and globally as a part of Russia's warning system of climate change effects.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"2012 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135813938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Geometric Generalized Birnbaum–Saunders model with long-Term Survivors 具有长期幸存者的几何广义Birnbaum-Saunders模型
Journal of Biostatistics and Epidemiology Pub Date : 2023-10-31 DOI: 10.18502/jbe.v9i1.13973
Ahmad Reza Baghestani, Farid Zayeri, Mojtaba Meshkat
{"title":"The Geometric Generalized Birnbaum–Saunders model with long-Term Survivors","authors":"Ahmad Reza Baghestani, Farid Zayeri, Mojtaba Meshkat","doi":"10.18502/jbe.v9i1.13973","DOIUrl":"https://doi.org/10.18502/jbe.v9i1.13973","url":null,"abstract":"Background: Survival rates are important to show the progress of the disease and the effect of treatments. The estimation of survival probabilities especially in presence of highly censored data is challenging. In this study, Fuzzy Product Limit Estimator (FPLE) is introduced to mitigate the challenge.&#x0D; Methods: In a longitudinal study, data of 173 CRC patients were analyzed. To estimate survival probabilities, mean and median survival time, Fuzzy Product Limit Estimator (FPLE), a data-driven method, was applied to the data. It provides a smooth survival probability curve and the continuation of the survival curve is not a concern in the case while the largest observed time is censored.&#x0D; Results: One-year survival rate for CRC patients was estimated to be 83% using FPLE and KM methods. The five-year survival rate was estimated to be 37% and 52% by the FPLE and KM methods, respectively. The largest observed time in data (71.96 months) was censored, so the survival rate after 71.96 months was not estimable by the KM method. But 10-year and 20-year survival rates were estimated by FPLE as 0.21 and 0.09. The mean (median) survival time was estimated 45.97 (65) and 82.69 (41.70) months by KM and FPLE methods, respectively. &#x0D; Conclusion: In presence of highly censored survival data, the FPLE method provides acceptable estimates of CRC patients' survival rate. Also, the continuation of the survival curve was estimated after the largest observed time. The smaller estimates by the FPLE at 5-year could be considered as warning that the actual survival rate is lower than that reported by the KM method.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"2015 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135814120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variable Selection for Recurrent Events Using Heuristic Approaches: Identifying Informative Variables for Rehospitalization in Schizophrenia Patients 用启发式方法选择复发事件的变量:确定精神分裂症患者再住院的信息变量
Journal of Biostatistics and Epidemiology Pub Date : 2023-10-31 DOI: 10.18502/jbe.v9i1.13979
Mahya Arayeshgar, Leili Tapak, Sharareh Parami, Behnaz Alafchi
{"title":"Variable Selection for Recurrent Events Using Heuristic Approaches: Identifying Informative Variables for Rehospitalization in Schizophrenia Patients","authors":"Mahya Arayeshgar, Leili Tapak, Sharareh Parami, Behnaz Alafchi","doi":"10.18502/jbe.v9i1.13979","DOIUrl":"https://doi.org/10.18502/jbe.v9i1.13979","url":null,"abstract":"Introduction: Recurrent event data, as a generalization of survival data, are frequently observed in various areas of medical research, including sequential hospitalizations in patients with schizophrenia. As experiencing multiple relapses during schizophrenia can have many implications, such as self-harm or harm to others, loss of education or employment, or other adverse outcomes, identifying and determining the most critical factors related to relapses in this disorder is essential. This study aimed to utilize heuristic approaches for selecting predictor variables in the field of recurrent events with an application to schizophrenia disorder&#x0D; Methods: A two-step algorithm was employed to apply a combination of two variable selection methods, recursive feature elimination (RFE) and genetic algorithm feature selection (GAFS), and four modeling techniques: Gradient boosting (GB), artificial neural network (ANN), random forest (RF), and support vector machine (SVM) to simulated recurrent event datasets.&#x0D; Results: In most simulation scenarios, the results indicated that the combination of RFE and RF applied to the deviance residual (DR) outperforms the other methods. The RFE-RF-DR selected the following predictor variables: Number of children, age, marital status, and history of substance abuse.&#x0D; Conclusion: Our findings revealed that the proposed machine learning-based model is a promising technique for selecting predictor variables associated with a recurrent outcome when analyzing multivariate time-toevent data with recurrent events.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"231 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association of Statin Therapy on Clinical Outcomes in Covid-19 Patients: An Updated Systematic Review and Meta-Analysis on All Related Evidences 他汀类药物治疗与新冠肺炎患者临床结果的相关性:所有相关证据的最新系统回顾和Meta-Analysis
Journal of Biostatistics and Epidemiology Pub Date : 2023-08-11 DOI: 10.18502/jbe.v8i4.13354
Dorsa Moharerzadeh Kurd, Ali Seidkhani-Nahal, A. Noori-Zadeh, Atiye Sheikhabbasi, F. Heydari, I. Pakzad, R. Pakzad
{"title":"Association of Statin Therapy on Clinical Outcomes in Covid-19 Patients: An Updated Systematic Review and Meta-Analysis on All Related Evidences","authors":"Dorsa Moharerzadeh Kurd, Ali Seidkhani-Nahal, A. Noori-Zadeh, Atiye Sheikhabbasi, F. Heydari, I. Pakzad, R. Pakzad","doi":"10.18502/jbe.v8i4.13354","DOIUrl":"https://doi.org/10.18502/jbe.v8i4.13354","url":null,"abstract":"Introduction: Statins is a class of lipid-lowering drugs and our previous investigations showed that statins have antiviral effects and have a wound healing effect in the lung. This systematic review and meta-analysis aimed to evaluate the effects of statin therapy on mortality and clinical outcomes in COVID-19 patients. \u0000Methods: A comprehensive search was conducted in international databases, including MEDLINE, Scopus, Web of Science, and Embase from December 1, 2019 until January 26, 2022 without any restriction in language. The random-effects model was used to estimate the pooled odds ratio (OR). \u0000Results: The statin therapy overally was associated with decrease in odds of ventilation [pooled OR (95% CI): 0.85 (0.70 to 0.99)] and mortality [pooled OR (95% CI): 0.73 (0.66 to 0.81)] but had no effects on the ICU admission [pooled OR (95% CI): 0.93 (0.77 to 1.12)], oxygen therapy [pooled OR (95% CI): 0.85 (0.70 to 0.99)], recovery [pooled OR (95% CI): 1.85 (0.35 to 9.92)], kidney failure [pooled OR (95% CI): 1.01 (0.73 to 1.40)], hospitalization [pooled OR (95% CI): 1.45 (0.88 to 2.36)], asymptomatic disease [pooled OR (95% CI): 1.33 (0.24 to 7.44)], and ARDS [pooled OR (95% CI): 1.15 (0.88 to 1.49)]. \u0000Conclusion: The present meta-analysis showed that statin therapy was associated with a reduced risk of mortality and ventilation in patients with COVID-19 but had no effects on other clinical outcomes.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43693782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Coagulopathy-Predicting Factors in Acute Trauma Patients Using the Generalized Estimation Equations Model 应用广义估计方程模型预测急性创伤患者凝血障碍的因素
Journal of Biostatistics and Epidemiology Pub Date : 2023-08-11 DOI: 10.18502/jbe.v8i4.13351
Z. Montazeri, S. Kheiri, Shahram Paydar, M. Sedehi
{"title":"The Coagulopathy-Predicting Factors in Acute Trauma Patients Using the Generalized Estimation Equations Model","authors":"Z. Montazeri, S. Kheiri, Shahram Paydar, M. Sedehi","doi":"10.18502/jbe.v8i4.13351","DOIUrl":"https://doi.org/10.18502/jbe.v8i4.13351","url":null,"abstract":"Introduction: Coagulation disorder is one of the major phenomena following the trauma which can deteriorate the condition of the patients. The aim of this study is to determine some factors predicting the incidence of coagulation disorder among acute trauma patients. \u0000Methods: The generalized estimation equations were used to determine the predictors of blood coagulation disorders in a sample of 736 people over 16 years of age with acute trauma in Shahid Rajaei Hospital in Shiraz. The response variable was converted based on PT, PTT, INR, and fibrinogen level criteria as a two-state variable (with/without coagulation disorder). In the data analysis, the correlation of the coagulation disorder was considered in the first and second stages. \u0000Results:The prevalence of coagulation disorders (mild, moderate and severe) was 19% in two stages and coagulation disorders (moderate and severe) was 7.5%. Motor vehicle accident was the most common cause of injury.The variables of blood sugar, diastolic blood pressure, pH, and sodium had a significant effect on coagulation disorders (mild, moderate, and severe). Moreover, blood phosphorus, age, and pupillary reflex had a significant effect on coagulation disorders (moderate and severe). \u0000Conclusion: Predictors of coagulation disorders (mild-moderate-severe) include blood sugar, diastolic blood pressure, pH, and sodium. Moreover, blood phosphorus, age, and pupil reflex are predictors of moderate and severe coagulopathy. this model that taking into account the exchangeable correlation of first- and second-stage coagulopathy had a better fit than the model ignoring this correlation.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43509531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of the Factors Affecting the Survival Rate of Patients with Lung Cancer Using Bayesian Model; Historical Cohort 用贝叶斯模型确定肺癌患者生存率的影响因素历史队列
Journal of Biostatistics and Epidemiology Pub Date : 2023-08-11 DOI: 10.18502/jbe.v8i4.13349
Armin Naghipour, A. Moghimbeigi, J. Poorolajal, Abdolazim Sadighi-Pashaki
{"title":"Determination of the Factors Affecting the Survival Rate of Patients with Lung Cancer Using Bayesian Model; Historical Cohort","authors":"Armin Naghipour, A. Moghimbeigi, J. Poorolajal, Abdolazim Sadighi-Pashaki","doi":"10.18502/jbe.v8i4.13349","DOIUrl":"https://doi.org/10.18502/jbe.v8i4.13349","url":null,"abstract":"Introduction: Gastric cancer; Case-Control; Conditional logistic regression; Bayesian; Matching.Gastric cancer is one of the most common and deadly cancers in Iran. Gastric cancer is highly dependent on nutritional factors and geographical location. Therefore, the aim of this study was to evaluate the effect of nutritional factors on gastric cancer in Hamadan-Iran. \u0000Methods: This study was performed as a matched case-control study that each case had two controls that matched with cases in age (±5 years) and gender at Diagnostic and Treatment Center of Mahdieh in Hamedan, Iran. First and second control groups contain persons with and without family history of cancer, respectively. Information of nutritional, epidemiological and confounding variables were collected for 100 cases and 200 controls. Controls from hospital samples, friends and acquaintances of the case group were selected. Data were collected using a researcher-made questionnaire. Data were analyzed using conditional logistic regression by Bayesian method. \u0000Results: Findings showed that, compared with individuals in the case group with the family history group with factors hot food (OR=2.35, 0.95%CrI=(1.82,5.19)), black tea (OR=1.60, 0.95%CrI (1.44,1.72)) cigarettes (OR=2.13, 0.95%CrI=(1.68,2.96)), red meat (OR=4.28, 0.95%CrI=(3.11,8.37)), residence (OR=3.15, 0.95%CrI= (1.62,5.65)), fruit (OR=0.75, 0.95% CrI=(0.63,0.83)) and vegetables (OR=0.76, 0.95%CrI=(0.59,0.85)) there was a strong statistical correlation. The results were also valid for the second control group. \u0000Conclusion: The study showed that many controllable nutritional factors in Hamadan affect the incidence of gastric cancer. It is recommended that policymakers and managers inform the public about the risk factors and prevention of gastric cancer through the publication of brochures, television and newspapers.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41542930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determinants of Out-of-Pocket Health Expenditure and Catastrophic Health Spending among Households with Elderly Individuals in Iran: An Application of the Heckman Model to Control Sample Selection 伊朗老年人家庭自费医疗支出和灾难性医疗支出的决定因素:Heckman模型在控制样本选择中的应用
Journal of Biostatistics and Epidemiology Pub Date : 2023-08-11 DOI: 10.18502/jbe.v8i4.13350
Haniyeh Aliakbar, M. Parsaeian, E. Ahmadnezhad, M. Tajvar, M. Yaseri
{"title":"Determinants of Out-of-Pocket Health Expenditure and Catastrophic Health Spending among Households with Elderly Individuals in Iran: An Application of the Heckman Model to Control Sample Selection","authors":"Haniyeh Aliakbar, M. Parsaeian, E. Ahmadnezhad, M. Tajvar, M. Yaseri","doi":"10.18502/jbe.v8i4.13350","DOIUrl":"https://doi.org/10.18502/jbe.v8i4.13350","url":null,"abstract":"Introduction: Universal health coverage is a critical goal for low- and middle-income countries, with equitable access to healthcare services being essential to achieving this objective. With the elderly population requiring greater healthcare services, it is crucial to plan for their healthcare needs. This study aims to evaluate the determinants of out-of-pocket payment (OOP) and catastrophic healthcare expenditure among households with elderly individuals in Iran. \u0000Methods: This study analyzed the 2018 Household Income-Expenditure Survey in Iran to examine the socio-economic factors affecting OOP (per purchasing power parity International Doller – PPP. Int $) and catastrophic healthcare expenditure in households with elderly members. Using survey probit regression model with Heckman selection, the study identified determinants of OOP and catastrophic healthcare expenditures. A survey probit regression model with Heckman selection has been applied to identify the determinants of out-of-pocket (OOP) and catastrophic healthcare expenditures. The approach allowed for the examination of variables that may have impacted the likelihood of incurring OOP and catastrophic healthcare expenditures, while accounting for potential selection bias. \u0000Results: Rural households (with difference 60.78 PPP. Int$) and non-owning homes (with difference 98.83 PPP.Int$) had higher OOP than their urban and owning counterparts, respectively. Larger households also had higher OOP, with those with five or more members having the highest. High-income households also had higher OOP. Additionally, smaller households had a lower chance of facing catastrophic healthcare expenses. Lastly, the Mills ratio was negative. \u0000Conclusion: Our study reveals insufficient observed out-of-pocket (OOP) payments for healthcare in Iran to cover the \"needed\" OOP, indicating a possible financial burden on households. This highlights the need to address inequalities in healthcare access and expenditure for households with elderly individuals, particularly in rural areas and larger households. Policymakers should implement targeted interventions to reduce OOP for these vulnerable groups. Future research should include socio-economic factors that affect access to healthcare services.","PeriodicalId":34310,"journal":{"name":"Journal of Biostatistics and Epidemiology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42848214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A New Family of Time Series to Model the Decreasing Relative Increment of Spreading of an Outbreak 一个新的时间序列族,用于模拟疫情传播的相对增量递减
Journal of Biostatistics and Epidemiology Pub Date : 2023-08-11 DOI: 10.18502/jbe.v8i4.13352
B. Jamshidi, H. Bekrizadeh, Shahriar Jamshidi Zargaran, M. Rezaei
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