LogRankTab: Log rank test p value and other summary statistics for...

In lengning/gClinBiomarker: gClinBiomarker: an R package for clinical biomarker analyses

Description

This function takes time to event outcome, and one categorical variable (parameter var). It generates log rank p value comparing different groups, and summary statistics

Usage

LogRankTab(data, tte, cens, var, time.unit = "month",
  surv.conf.type = "plain", ties = "efron", fillname = "")

Arguments

data	Input data frame. Rows are patients and columns are variables (e.g. demographics variables, time to event variables, biomarker variables, treatment indicator, etc.). One patient per row.
tte	column name that indicates the time to event variable
cens	column name that indicates the censoring variable associated to tte. 1 indicates event and 0 indicates censoring
var	a vector that indicates variables of interest. Hazard ratio, CI and pvalue of these variables will be calculated. All elements in var should be also in input data's column names. It will be ignored if fit or form is not null.
time.unit	Default is month.
surv.conf.type	confidence interval type. Default is "plain". see conf.type in survfit
ties	Default is "efron". To match internal sas results, use "exact". See parameter "ties" in coxph.
fillname	(character) variable specifying the content for the cell that located in row one and column one, the default value for fillname is NULL.

Note

This function takes time to event outcome, and one categorical variable (parameter var). This function generates a table that contains number of patients, median time to event, and log rank test p value ( against first level in var) For more general time to event modeling, see function CoxTab() (e.g. continuous factor, multiple factors, stratification, hazard ratio estimation, etc)

Author(s)

Ning Leng [e-mail], Alexey Pronin [e-mail], and previous team members (see DESCRIPTION)

Examples

data(input)
LogRankTab(data=input,tte="PFS", cens="PFS.event",var="Arm")

lengning/gClinBiomarker documentation built on May 9, 2019, 2:55 p.m.