aml: Remission Times for Acute Myelogenous Leukaemia
In SMPracticals: Practicals for Use with Davison (2003) Statistical Models
aml R Documentation
Remission Times for Acute Myelogenous Leukaemia
Description
A clinical trial to evaluate the efficacy of maintenance
chemotherapy for acute myelogenous leukaemia was conducted by
Embury et al. (1977) at Stanford University. After reaching a
stage of remission through treatment by chemotherapy, patients
were randomized into two groups. The first group received
maintenance chemotherapy and the second group did not. The aim
of the study was to see if maintenance chemotherapy increased the
length of the remission. The data here formed a preliminary
analysis which was conducted in October 1974.
Usage
data(aml)
Format
A data frame with 23 observations on the following 3 variables.
- time
The length of the complete remission (in weeks).
- cens
An indicator of right censoring. 1 indicates that the
patient had a relapse and so 'time' is the length of the
remission. 0 indicates that the patient had left the study or
was still in remission in October 1974, that is the length of
remission is right-censored.
- group
The group into which the patient was randomized. Group 1
received maintenance chemotherapy, group 2 did not.
Source
Miller, R.G. (1981) Survival Analysis. John Wiley: New York. Page 49.
References
Embury, S.H, Elias, L., Heller, P.H., Hood, C.E., Greenberg, P.L.
and Schrier, S.L. (1977) Remission maintenance therapy in acute
myelogenous leukaemia. Western Journal of Medicine, 126,
267–272.
SMPracticals documentation built on May 29, 2024, 12:19 p.m.
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| aml | R Documentation |
Remission Times for Acute Myelogenous Leukaemia
Description
A clinical trial to evaluate the efficacy of maintenance chemotherapy for acute myelogenous leukaemia was conducted by Embury et al. (1977) at Stanford University. After reaching a stage of remission through treatment by chemotherapy, patients were randomized into two groups. The first group received maintenance chemotherapy and the second group did not. The aim of the study was to see if maintenance chemotherapy increased the length of the remission. The data here formed a preliminary analysis which was conducted in October 1974.
Usage
data(aml)Format
A data frame with 23 observations on the following 3 variables.
- time
The length of the complete remission (in weeks).
- cens
An indicator of right censoring. 1 indicates that the patient had a relapse and so 'time' is the length of the remission. 0 indicates that the patient had left the study or was still in remission in October 1974, that is the length of remission is right-censored.
- group
The group into which the patient was randomized. Group 1 received maintenance chemotherapy, group 2 did not.
Source
Miller, R.G. (1981) Survival Analysis. John Wiley: New York. Page 49.
References
Embury, S.H, Elias, L., Heller, P.H., Hood, C.E., Greenberg, P.L. and Schrier, S.L. (1977) Remission maintenance therapy in acute myelogenous leukaemia. Western Journal of Medicine, 126, 267–272.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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