CRAN/E | IPDfromKM

IPDfromKM

Map Digitized Survival Curves Back to Individual Patient Data

Installation

About

An implementation to reconstruct individual patient data from Kaplan-Meier (K-M) survival curves, visualize and assess the accuracy of the reconstruction, then perform secondary analysis on the reconstructed data. We involve a simple function to extract the coordinates form the published K-M curves. The function is developed based on Poisot T. ’s digitize package (2011) doi:10.32614/RJ-2011-004 . For more complex and tangled together graphs, digitizing software, such as 'DigitizeIt' (for MAC or windows) or 'ScanIt'(for windows) can be used to get the coordinates. Additional information should also be involved to increase the accuracy, like numbers of patients at risk (often reported at 5-10 time points under the x-axis of the K-M graph), total number of patients, and total number of events. The package implements the modified iterative K-M estimation algorithm (modified-iKM) improved upon the approach proposed by Guyot (2012) doi:10.1186/1471-2288-12-9 with some modifications.

Key Metrics

Version 0.1.10
R ≥ 3.6.0
Published 2020-11-11 1234 days ago
Needs compilation? no
License GPL-2
CRAN checks IPDfromKM results

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Maintainer

Maintainer

Na Liu

nliu1104@gmail.com

Authors

Na Liu

aut / cre

J.Jack Lee

aut / ths

Yanhong Zhou

ctb

Material

Reference manual
Package source

macOS

r-release

arm64

r-oldrel

arm64

r-release

x86_64

r-oldrel

x86_64

Windows

r-devel

x86_64

r-release

x86_64

r-oldrel

x86_64

Depends

R ≥ 3.6.0
ggplot2
dplyr
survival
gridExtra
readbitmap