CHAIN: Subset of variables from the CHAIN project
In mi: Missing Data Imputation and Model Checking
CHAIN R Documentation
Subset of variables from the CHAIN project
Description
The CHAIN project was a longitudinal cohort study of people living with HIV in New York City,
which was recruited in 1994 from a large number of medical care and social service agencies
serving HIV in New York City. This subset of data pertain to the sixth round of interviews.
Usage
data(CHAIN)
Format
A data.frame with 532 observations on the following 8 variables.
log_virus-
log of self reported viral load level, where zero represents an undetectable level.
age-
age at time of the interview
income-
annual family income in 10 intervals
healthy-
a continuous scale of physical health with a theoretical range between 0 and 100 where
better health is associated with higher scale values
mental-
a binary measure of poor mental health ( 1=Yes, 0=No )
damage-
ordered interval for the CD4 count, which is an
indicator of how much damage HIV has caused to the immune system
treatment-
a three-level ordered variable:
0=Not currently taking HAART (Highly Active AntiretRoviral Therapy)
1=taking HAART but nonadherent,
2=taking HAART and adherent
Details
A missing value in the log virus load level
was assigned to individuals who either could not recall
their viral load level, did not have a viral load test in the six month
preceding the interview, or reported their viral loads as "good" or "bad".
Source
http://cchps.columbia.edu/research.cfm
References
Messeri P, Lee G, Abramson DA, Aidala A, Chiasson MA, Jones JD. (2003).
“Antiretroviral therapy and declining AIDS mortality in New York City”.
Medical Care 41:512–521.
mi documentation built on June 7, 2022, 1:04 a.m.
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| CHAIN | R Documentation |
Subset of variables from the CHAIN project
Description
The CHAIN project was a longitudinal cohort study of people living with HIV in New York City, which was recruited in 1994 from a large number of medical care and social service agencies serving HIV in New York City. This subset of data pertain to the sixth round of interviews.
Usage
data(CHAIN)
Format
A data.frame with 532 observations on the following 8 variables.
log_virus-
log of self reported viral load level, where zero represents an undetectable level.
age-
age at time of the interview
income-
annual family income in 10 intervals
healthy-
a continuous scale of physical health with a theoretical range between 0 and 100 where better health is associated with higher scale values
mental-
a binary measure of poor mental health ( 1=Yes, 0=No )
damage-
ordered interval for the CD4 count, which is an indicator of how much damage HIV has caused to the immune system
treatment-
a three-level ordered variable: 0=Not currently taking HAART (Highly Active AntiretRoviral Therapy) 1=taking HAART but nonadherent, 2=taking HAART and adherent
Details
A missing value in the log virus load level was assigned to individuals who either could not recall their viral load level, did not have a viral load test in the six month preceding the interview, or reported their viral loads as "good" or "bad".
Source
http://cchps.columbia.edu/research.cfm
References
Messeri P, Lee G, Abramson DA, Aidala A, Chiasson MA, Jones JD. (2003). “Antiretroviral therapy and declining AIDS mortality in New York City”. Medical Care 41:512–521.
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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