Sentence examples for smoking categories from inspiring English sources

Individuals were classified into smoking categories of never smoked, ex-smoker, and current smoker by self-report.

Possible dose response relations between smoking and childhood cancer were examined using three smoking categories of 0, 1–19, and 20 or more cigarettes smoked per day (cpd).

To classify subjects into smoking categories, the PLATINO group implemented the Lung Health Study Questionnaire; and classified individuals who had smoked in the previous 30 days as current smokers.

The key question categorizing college students into the main smoking categories is, "On how many of the past 30 days did you smoke cigarettes?" Participants who smoked on at least 1 day in the past month will be categorized as current smokers and those who report no use in the past month will be grouped into the non-user category.

Complete agreement in the answers concerning smoking categories was found for 265 women (93%).

Based on these questions the women were categorized into different smoking categories (nonsmoker, current smoker, stop of smoking before pregnancy/during pregnancy and occasional smoker).

†See text for definition of smoking categories.

Table 1 summarizes demographic and clinical variables by smoking categories.

We summarized the participants' characteristics according to smoking categories.

Multiplying these proportions with the relative risks for the different smoking categories produced the age-specific absolute risks in the different smoking categories (6).

Interaction terms were generated by multiplying the ordinal smoking categories by ordinal alcohol drinking categories.