Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
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A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Keywords of the NLP algorithm for the extraction of smoking status
| Smoker | smokes?, smoked, smoking, smokers?, tobaccos?, cigarettes?, cigs?, pipes?, nicotine, cigars?, tob |
|---|---|
| Non-Smoker | (no|non|not|never|negative)\W*(smoker|smoking|smoked|tobacco), nonsmoker, denies\W*smoking, (tobacco|smoke|smoking|nicotine)\W*(never|no), doesn\'t smoke, 0|zero smokers? |
