Description

For sample adults ages 18 and older who had their homes tested for radon and whose tested radon level exceeded the EPA guideline of 4 picocuries per liter or was unknown (RADGUIDE), RADDONE reports if anything has been done in the home to reduce the level of radon exposure. Please see the comparability and universe tabs for more information about how this universe changes across samples.

RADDONE is included in the sample adult section within a series of questions about environmental health concerns, including testing for lead and radon. For more information and related variables, see RADHEAR or use the IPUMS NHIS search function and drop-down menus.

Comparability

In 1990, this question was asked of all respondents whose homes were tested for radon. In 1991 it was only asked of respondents whose tested radon levels exceeded the EPA guidelines of 4 picocuries per liter or was unknown. Beginning in 1993, this was only asked of respondents who knew that their tested radon levels exceeded the EPA guidelines of 4 picocuries per liter. In 1998, the universe was restricted to respondents whose tested radon levels exceeded the EPA guidelines of 4 picocuries per liter and who reported a tested radon level between 0004 and 9996 picocuries per liter. Data users should exercise caution when comparing frequencies across samples for RADDONE.

Changes in survey design (e.g., quarters in which the supplement was collected) may affect raw frequencies, but do not affect comparability of the variable. As always, data users should use the prescribed IHIS weights.

Universe

Availability

• 1990-1991, 1993-1994, 1998

Weights

• 1990-1991, 1998 : SAMPWEIGHT
• 1993-1994 : SUPP2WT