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Substance 3 endangers health: Health effect 4

Codes and Frequencies

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For sample persons ages 18 and older who were employed in the last two weeks, and who reported to be exposed to at least three harmful substances that could endanger her/his own health, WEXSUB3HEL4 reports the fourth type of health effect for the third reported substance. See the Codes tab for response options. Persons could report up to six such substances, and for each substance, they could report up to four ways their own health could be endangered as a result of it.

This variable was introduced in 1985 as part of a series of variables with information on occupational safety and health. For related variables, please use the IPUMS NHIS search function and drop-down menus.


This variable has no comparability issues.


  • 1985: Sample persons age 18+ who were employed in the past 2 weeks who are exposed to any dangerous substances and mentioned a third substance; REF/DKA/NA substance and mentioned third way how third substance effects health; REF/DKA/NA how effects and mentioned one way how third substance effects health; REF/DKA/NA how effects.


  • 1985