The brfss data set contains a randomly selected subsample of 2,000 respondents
from the 2013 Behavioral Risk Factor Surveillance System (BRFSS) survey.
The BRFSS is an ongoing, state-based telephone survey conducted by the U.S.
Centers for Disease Control and Prevention (CDC) that collects information on
health-related risk behaviors, chronic health conditions, and the use of preventive
health services from non-institutionalized adults.
Usage
data(brfss)Details
In the context of post-linkage data analysis (PLDA), this data set is partitioned into two separate files to simulate a secondary analysis scenario where disparate data sources must be linked using quasi-identifiers (e.g., state, month of interview, sex, and marital status) prior to performing regression analyses (e.g., predicting weight based on height, physical health, and mental health).
Pre-processing steps have been applied to this subsample to remove missing values
("Refused" or NA) and to filter out extreme outliers in physical measurements.
X: State of residence (categorical).imonth: Month of interview (categorical).Weight: Weight of the respondent in pounds. Records with a weight less than 50 lbs or greater than 650 lbs were excluded.Height: Height of the respondent, formulated as (feet * 100 + inches). Records with a height less than 54 inches or greater than 84 inches were excluded.Physhlth: Number of days with poor physical health. Records marked "Refused" or NA were excluded.Menthlth: Number of days with poor mental health. Records marked "Refused" or NA were excluded.Exerany: Indicator of whether the respondent engaged in physical activity. Records marked "Refused" or NA were excluded.m.rate: Block-wise (by interview month) mismatch rate.
References
Centers for Disease Control and Prevention (CDC) (2013). "Behavioral Risk Factor Surveillance System Survey Data." U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Available at https://www.cdc.gov/brfss/annual_data/annual_2013.html.