| radon {NU.Learning} | R Documentation |
Radon exposure and lung cancer mortality data for 2,881 US counties in 46 States.
Description
Federal EPA and state government agencies have been reporting observational data at the US County level since about 1980. The data given here include 5 potential X-confounder variables of the relationship between lung cancer mortality and radon exposure; they were amassed and checked by Goran Krstic, Fraser Health Authority, Vancouver, BC, Canada.
Usage
data(radon)Format
A data frame of 11 variables for 2881 US counties. One Missing Value; row 778 for Shannon County, SD, fips == 46113, has hhincome == NA.
- fips
County FIPS code. Codes are 4 or 5 digit integers; 2881 unique values.
- state
State Factor variable (2-character codes); 46 unique levels.
- county
County or Parish Factor variable (character codes); 1703 unique levels.
- lcanmort
Lung Cancer Mortality rate (deaths per 100,000 person-years), 1980-2004.
- radon
County Radon Exposure level in picocuries per liter (pCi/L) for some unspecified period within 1986-1992; rounded to nearest single decimal place.
- lnradon
Natural logarithm of County Radon Exposure level. Radon levels reported as 0.0 for 10 US counties are Windsorized here to ln(0.05), which is roughly -3.
- obesity
Percentage of County Residents considered Obese (age adjusted), 2008.
- over65
Percentage of County Residents of Age 65 and over, 2000 Census.
- cursmoke
Percentage of County Residents who Currently Smoke, 1997-2003.
- evrsmoke
Percentage of County Residents who Ever Smoked, 1997-2003.
- hhincome
Average Median HouseHold Income in Thousands ($1,000), 1989-2004.
References
Krstic G, Obenchain RL. (2016) Radon dataset documentation and downloads. http://localcontrolstatistics.org
Obenchain RL. (2018) RADON_short.pdf http://localcontrolstatistics.org 40 PPT Slides and Commentary in Notes Pages format.
Examples
data(radon)
str(radon)