cd_3 {qvirus} | R Documentation |
Longitudinal CD4 Lymphocyte Counts for HIV Patients (2018-2024)
Description
Contains longitudinal measurements of CD4 lymphocyte counts for 176 patients living with HIV, recorded over the period from 2018 to 2024. CD4 counts are a critical indicator of immune function, used to monitor the progression of HIV and the effectiveness of treatments. Measurements were taken at various points throughout the study, with some missing values due to unavailable data for specific patients at certain times.
Usage
cd_3
Format
A data frame with 176 rows and 18 variables:
- ID
Unique identifier for each patient.
- cd_2018_1
CD4 count for the first measurement in 2018.
- cd_2018_2
CD4 count for the second measurement in 2018.
- cd_2019_1
CD4 count for the first measurement in 2019.
- cd_2019_2
CD4 count for the second measurement in 2019.
- cd_2020_1
CD4 count for the first measurement in 2020.
- cd_2021_1
CD4 count for the first measurement in 2021.
- cd_2021_2
CD4 count for the second measurement in 2021.
- cd_2021_3
CD4 count for the third measurement in 2021.
- cd_2022_1
CD4 count for the first measurement in 2022.
- cd_2022_2
CD4 count for the second measurement in 2022.
- cd_2022_3
CD4 count for the third measurement in 2022.
- cd_2023_1
CD4 count for the first measurement in 2023.
- cd_2023_2
CD4 count for the second measurement in 2023.
- cd_2023_3
CD4 count for the third measurement in 2023.
- cd_2024_1
CD4 count for the first measurement in 2024.
- cd_2024_2
CD4 count for the second measurement in 2024.
- cd_2024_3
CD4 count for the third measurement in 2024.
Details
. CD4 counts are used to monitor immune system health in individuals with HIV. A lower CD4 count often indicates a weakened immune system, whereas higher counts suggest a stronger immune response. Some values are missing, indicating no measurement was taken for a particular patient at that time.
Source
Clinical data from Hospital Vicente Guerrero, IMSS, HIV Clinic.
Examples
# Load the dataset
data(cd_3)
# Summarize CD4 counts for the year 2021
summary(cd_3[, c("cd_2021_1", "cd_2021_2", "cd_2021_3")])