Subjects will be recruited by mailings using smoking entries on the GP electronic data-base (total practice population = 32,048) to identify smokers who may want to quit.
Gold et al., 2003: RR adjusted for city, race, age, parental education, air-conditioning, being an only child, single-parent family, and maternal smoking at entry.
Two bar/restaurant venues on the list of candidates were rejected because no-one could be found smoking at entry, and time was limited by PPAH monitor battery charge.
Current smoking on entry to the study was in 17.5%, 36.6% were never smokers but did report environmental tobacco smoke (ETS) exposure, 45.9% were never smokers without environmental tobacco smoke, and 9.6% were ex-smokers.
In the years leading up to and during World War II, the advent of movies depicting glamorous images of women smoking, the entry of women into the workforce, and the development of cigarette brands which were attractive to women resulted in widespread uptake, with more than one in every four women reported as smoking by 1945 [ 18].
Baseline variables included in the analyses were age, sex, disease duration, metalloproteinase (MMP -8 (ng/MMP -8heumatoid factor, ng/mlarheumatoid C-reactive protein (mg/dl), erythrocyte sedimentation rate (mm/h), Health Assessment Questionnaire (score 0 to 3), Larsen score, taking drugs factorrdiovascular disease (CVD) anodularing at entry.
Baseline variables included in the analyses were age, sex, disease duration, MMP-8 (ng/ml), rheumatoid factor, nodular disease, C-reactive protein (mg/l), erythrocyte sedimentation rate (mm/h), Health Assessment Questionnaire (score 0 to 3), Larsen score, taking drugs for cardiovascular disease (CVD) and smoking at entry.
Patients were classified as current smokers at a given index date if their most recent smoking-related entry in their medical records prior to this index date identified them as such.
Smoking status before entry was recorded for just 61% of individuals under study and BMI and HbA1c levels before entry were available for less than one-quarter of individuals.
Seven children reported personal smoking at study entry.
