cmv: Interval-censored data for times to cytomegalovirus (CMV)...
In glrt: Generalized Logrank Tests for Interval-censored Failure Time Data
Description
Usage
Format
Details
Source
References
Description
The cmv data frame is based on an AIDS clinic trial on HIV-infected individuals. The data involve 204 patients who are classified into two groups based on whether patient's CD4 count is below 75 cells per μ l or not. Among the 204 patients, 111 of them had a CD4 count below 75.
Usage
1
Format
A data frame with 204 observations on the following 6 variables.
patientpatient id
lbleft end point of an censoring interval for time to CMV shedding in blood
rbright end point of an censoring interval for time to CMV shedding in blood
luleft end point of an censoring interval for time to CMV shedding in urine
ruright end point of an censoring interval for time to CMV shedding in urine
cd4indgroup indicator if patient's baseline CD4 count is below 75 (1 for below 75 and 0 otherwise)
Details
The survival times are time to the presence of CMV in blood and ullrine, respectively. The censoring intervals are in the format of (l_b, r_b] and (l_u, r_u]. For CMV in blood, there are 7 left-censored, 23 interval-censored, and 174 right-censored, but no exact observations. For CMV in urine, there are 49 left-censored, 67 interval-censored, and 88 right-censored, but no exact observations.
Source
J. Sun (2006), "The Statistical Analysis of Interval-censored Failure Time Data", Springer.
References
W. B. Goggins and D. M. Finkelstein (2000), "A proportional hazards model for multivariate interval-censored failure time data", Biometrics, 56: 940-943.
glrt documentation built on May 2, 2019, 8:31 a.m.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Description Usage Format Details Source References
Description
The cmv data frame is based on an AIDS clinic trial on HIV-infected individuals. The data involve 204 patients who are classified into two groups based on whether patient's CD4 count is below 75 cells per μ l or not. Among the 204 patients, 111 of them had a CD4 count below 75.
Usage
1 |
Format
A data frame with 204 observations on the following 6 variables.
patientpatient id
lbleft end point of an censoring interval for time to CMV shedding in blood
rbright end point of an censoring interval for time to CMV shedding in blood
luleft end point of an censoring interval for time to CMV shedding in urine
ruright end point of an censoring interval for time to CMV shedding in urine
cd4indgroup indicator if patient's baseline CD4 count is below 75 (1 for below 75 and 0 otherwise)
Details
The survival times are time to the presence of CMV in blood and ullrine, respectively. The censoring intervals are in the format of (l_b, r_b] and (l_u, r_u]. For CMV in blood, there are 7 left-censored, 23 interval-censored, and 174 right-censored, but no exact observations. For CMV in urine, there are 49 left-censored, 67 interval-censored, and 88 right-censored, but no exact observations.
Source
J. Sun (2006), "The Statistical Analysis of Interval-censored Failure Time Data", Springer.
References
W. B. Goggins and D. M. Finkelstein (2000), "A proportional hazards model for multivariate interval-censored failure time data", Biometrics, 56: 940-943.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.