• RADTEST indicates if the household air was tested for radon

• RADTESTNY indicates if anyone plans to have the home tested for radon in the next year

• RADWHO reports who decided to test for radon

• RADLEVEL reports the radon level in picocuries per liter

• RADGUIDE indicates if the radon level is above or below EPA guidelines

• RADONHARM reports how harmful to health the respondent believes the radon level in the home to be

• RADFOLUP indicates if radon follow-up tests were conducted after the household was first tested for radon

• RADDONE indicates if anything has been done to reduce the level of radon exposure in the home

• RADACTPLAN indicates if anyone plans to do something to reduce the level of radon exposure in the home

Possible actions to reduce the level of radon exposure include:

• RADACTVENT: increased ventilation

• RADACTMOVE: moved out or spent less time in the basement

• RADACTMODH: modified home (e.g., sealed cracks, installed ventilation system)

• RADACTSMOK: stopped or decreased smoking

• RADACTOTH: some other activity to reduce the level of radon exposure

• RADACTDK: doesn't know the activity used to reduce the level of radon exposure

• Headache (RADONHEAD)

• Arthritis (RADONARTH)

• Lung cancer (RADONLUNG)

• Other cancer (RADONCANCER)

• Asthma (RADONASTH)

• Headache (RADONHEAD)

• None of the listed conditions (RADONONE)