نتایج جستجو برای: cumulative incidence function
تعداد نتایج: 1489315 فیلتر نتایج به سال:
In analyzing competing risks data, a quantity of considerable interest is the cumulative incidence function. Often, the effect of covariates on the cumulative incidence function is modeled via the proportional hazards model for the cause-specific hazard function. As the proportionality assumption may be too restrictive in practice, we consider an alternative more flexible semiparametric additiv...
Objective- Locomotor disorders are prevalent health problems in dairy herds that negatively affect milk production, reproduction performance and animal welfare. The ultimate cost of locomotor disorders in dairy cattle is substantially greater than treatment costs alone. As limited information is available on incidence of feet and leg disorders in Iran, the objective of this study was to determi...
Background: Given that COVID-19 continues to spread worldwide, has become a public health priority. This study aimed to investigate the correlation between the social capital and the epidemiological indicators of COVID-19. Methods: This survey is an ecological study, so all studied variables are aggregate variables. To collect the variables in the study, a data set was provided, which includ...
background: mastitis is an important health disorder in dairy herds which affects milk production, animal reproduction and production. objectives: the aim of this study was to estimate the cumulative incidence of mastitis in dairy herds in tehran province. methods: from 679 dairy herds in tehran province that have more than 50 animals, 32 dairy herds were selected randomly and animals that had...
BACKGROUND To assess the reliability and accuracy of the Framingham coronary heart disease (CHD) risk function adapted by the Registre Gironí del Cor (REGICOR) investigators in Spain. METHODS A 5-year follow-up study was completed in 5732 participants aged 35-74 years. The adaptation consisted of using in the function the average population risk factor prevalence and the cumulative incidence ...
background increases in aminotransferases (transaminitis) are potential major adverse reactions seen with long-term use of methotrexate (mtx). the aim of this study, therefore was to evaluate the incidence of mtx induced hepatotoxicity and its risk factors among rheumatoid arthritis (ra) patients. methods this retrospective study described 286 patients with ra who received ≤ 7.5 mg mtx weekly...
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