Di-san junyi daxue xuebao, 2021 Objective To investigate whether hypocalcemia is associated with poor prognosis in COVID-19 patients. Methods A retrospective analysis was performed on 2 651 COVID-19 patients admitted to Wuhan Huoshenshan Hospital from February 4, 2020 to April 11, 2020.
XIANG Hedong +9 more
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Regression calibration for Cox regression under heteroscedastic measurement error - Determining risk factors of cardiovascular diseases from error-prone nutritional replication data [PDF]
, 2003 For instance nutritional data are often subject to severe measurement error, and an adequate adjustment of the estimators is indispensable to avoid deceptive conclusions.
Augustin, Thomas +2 more
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Hypoalbuminaemia predicts outcome in adult patients with congenital heart disease [PDF]
, 2015 Background In patients with acquired heart failure, hypoalbuminaemia is associated with increased risk of death. The prevalence of hypoproteinaemia and hypoalbuminaemia and their relation to outcome in adult patients with congenital heart disease (ACHD ...
Alonso-Gonzalez, R +11 more
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Modeling of Xerostomia After Radiotherapy for Head and Neck Cancer: A Registry Study
Frontiers in Oncology, 2020 AimData from a local quality registry are used to model the risk of late xerostomia after radiotherapy for head and neck cancer (HNC), based on dosimetric- and clinical variables.
Eva Onjukka +14 more
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Bias of Maximum-Likelihood estimates in logistic and Cox regression models: A comparative simulation study [PDF]
, 2003 Parameter estimates of logistic and Cox regression models are biased for finite samples. In a simulation study we investigated for both models the behaviour of the bias in relation to sample size and further parameters.
Bender, R. +4 more
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Hypotension and survival: diagnostic criteria in Russian and United States population
Российский кардиологический журнал, 2021 Aim. Based on Russian and United States population studies, to determine the criterion for distinguishing between normal and low blood pressure (BP), which is the most significant for predicting all-cause mortality.Material and methods. We used data from
V. G. Vilkov +4 more
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Box-Cox symmetric distributions and applications to nutritional data [PDF]
, 2017 We introduce the Box-Cox symmetric class of distributions, which is useful for modeling positively skewed, possibly heavy-tailed, data. The new class of distributions includes the Box-Cox t, Box-Cox Cole-Gree, Box-Cox power exponential distributions, and
Ferrari, Silvia L. P., Fumes, Giovana
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Statistical methods for elimination of guarantee-time bias in cohort studies: a simulation study
BMC Medical Research Methodology, 2017 Background Aspirin has been considered to be beneficial in preventing cardiovascular diseases and cancer. Several pharmaco-epidemiology cohort studies have shown protective effects of aspirin on diseases using various statistical methods, with the Cox ...
In Sung Cho +6 more
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Building Cox-Type Structured Hazard Regression Models with Time-Varying Effects [PDF]
, 2008 In recent years, flexible hazard regression models based on penalised splines have been developed that allow us to extend the classical Cox-model via the inclusion of time-varying and nonparametric effects.
Hartl, Wolfgang +3 more
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Jurnal Biometrika dan Kependudukan, 2018 Relapse happened because of factor that affected an addict back to the previous state. Recurrence rate off an addict that had been treated on a various therapeutic center and rehabilitation was higher from 60% until 80%.
Kardita Puspa Monitasari, Diah Indriani
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