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Statistical Methods in Medical Research
Scopus
ISSN 0962-2802 · SAGE Publishing · 2 artikel di indeks
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Artikel Jurnal Teks lengkap
A tutorial on frailty models
The hazard function plays a central role in survival analysis. In a homogeneous population, the distribution of the time to event, described by the hazard, is the same for each individual. Heterogeneity in the distributions can be accounted for by including covariates in a model for the hazard, for…
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Artikel Jurnal Teks lengkap
Estimating the sample mean and standard deviation from commonly reported quantiles in meta-analysis
Researchers increasingly use meta-analysis to synthesize the results of several studies in order to estimate a common effect. When the outcome variable is continuous, standard meta-analytic approaches assume that the primary studies report the sample mean and standard deviation of the outcome…