Results 21 to 30 of about 194,588 (164)

Association between cognitive function and dusty weather: a propensity score matching study

BMC Geriatrics, 2023
Background With a rapidly aging global population, the health of older adults is a national priority for countries across the world. Dusty weather has been demonstrated to be a potential risk factor of cognitive function among the elderly population ...
Honghui Yao, Zixuan Peng, Xinping Sha
doaj   +1 more source

Estimating the Causal Effect of Two-Dose COVID-19 Vaccination on Hospitalization Rates [PDF]

Epidemiology and Health System Journal
Background and aims: COVID-19 remains a global health challenge, with vaccination crucial for reducing severe cases. This study evaluated a two-dose COVID-19 vaccine’s effectiveness in lowering hospitalization rates using advanced statistical techniques.
Mahboobeh Taherizadeh, Mohammad Taghi Shakeri, Saeed Akhlaghi, Ehsan Mosa Farkhani   +3 more
doaj   +1 more source

Specification tests for the propensity score [PDF]

Journal of Econometrics, 2019
This paper proposes new nonparametric diagnostic tools to assess the asymptotic validity of different treatment effects estimators that rely on the correct specification of the propensity score. We derive a particular restriction relating the propensity score distribution of treated and control groups, and develop specification tests based upon it. The
Sant'Anna, Pedro H. C., Song, Xiaojun
openaire   +3 more sources

Perbandingan Propensity Score Stratification dan Propensity Score Matching dengan Pendekatan Multivariate Adaptive Regression Spline

Jambura Journal of Mathematics
Research on complications of Diabetes Mellitus (DM) is multifactorial, where the risk factors causing DM complications are interrelated, leading to confounding bias, which results in inaccurate research findings. Confounding bias can be reduced using the
Ingka Rizkyani Akolo, Setia Ningsih, Hendra Dukalang   +2 more
doaj   +1 more source

Subgroup balancing propensity score [PDF]

Statistical Methods in Medical Research, 2019
This paper concerns estimation of subgroup treatment effects with observational data. Existing propensity score methods are mostly developed for estimating overall treatment effect. Although the true propensity scores balance covariates in any subpopulations, the estimated propensity scores may result in severe imbalance in subgroup samples.
Jing Dong, Junni L Zhang, Shuxi Zeng, Fan Li   +3 more
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Health care inequality under different medical insurance schemes in a socioeconomically underdeveloped region of China: a propensity score matching analysis

BMC Public Health, 2019
Background Since economic inequality is often accompanied by health inequalities, health care inequalities are increasingly becoming a hot issue on a global scale. As a developing country, China is still facing the same problems as other countries in the
Wei Xian, Xueying Xu, Junling Li, Jinbin Sun, Hezi Fu, Shaoning Wu, Hongbo Liu   +6 more
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An evaluation of the US African Growth and Opportunity Act (AGOA) trade arrangement with Sub-Saharan African countries [PDF]

PSL Quarterly Review, 2018
This paper evaluates the impact of the US African Growth and Opportunity Act (AGOA) trade arrangement on the growth of exports from Sub-Saharan African (SSA) countries. Using several variants of propensity score matching techniques, results show that the
Busani Moyo, Mamello Nchake, Blessing Chiripanhura   +2 more
doaj   +1 more source

Effect of Dihydropyridine Calcium Channel Blocker on Mortality of Hypertension Patients With Moderate-Severe Pulmonary Acute Respiratory Distress Syndrome: A Multicenter Retrospective Observational Cohort Study

Critical Care Explorations, 2021
OBJECTIVES:. The aim was to evaluate the effect of dihydropyridine calcium channel blocker on the prognosis for moderate-severe pulmonary acute respiratory distress syndrome in hypertension patients. DESIGN:.
Fengyuan Li, MD, Chang Gao, MD, Jiahao Chen, MD, Ling Yang, MD, Shiqi Guo, MD, Dongmei Jin, MD, Xiaoting Lu, MD, Yin Sheng, MD, Xiaoxia Ji, MD, Qiang Guo, MD   +9 more
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The Propensity Score: A Means to an End [PDF]

SSRN Electronic Journal, 2001
Propensity score matching is a prominent strategy to reduce imbalance in observational studies. However, if imbalance is considerable and the control reservoir is small, either one has to match one control to several treated units or, alternatively, discard many treated persons.
Augurzky, Boris, Schmidt, Christoph M.
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Propensity scores in the presence of effect modification: A case study using the comparison of mortality on hemodialysis versus peritoneal dialysis

Emerging Themes in Epidemiology, 2010
Purpose To control for confounding bias from non-random treatment assignment in observational data, both traditional multivariable models and more recently propensity score approaches have been applied.
Hunink MG Myriam, Wong John B, Liem Ylian S, de Charro Frank, Winkelmayer Wolfgang C   +4 more
doaj   +1 more source