Smoker

Studies:

HMP (2161/2162 samples)
Schirmer_2016_500FG (462/471 samples)
Brooks_2017_infants (403/432 samples)
MyMicrobes (367/448 samples)
39 other studies (4344 samples)

Scope: human

Type: string with fixed values

Allowed values: 'smoker', 'ex-smoker', 'non-smoker'

Description: Information about subject's smoking habit at the time of sample collection.