Table 2

Odds ratios for “Ask” smoking status during study period*

Effect typeOdds ratio (95% CI)
*Based on hierarchical logistical regression analysis with observations from medical chart documentation at most recent visit for all patients (smokers and non-smokers) seen in a primary care visit.
†The reference group for sex is the average of male and female values.
    Post- (v pre-)3.00 (1.19 to 7.55)
    Follow up (v pre-)5.96 (1.84 to 19.32)
Sex (male v female)†1.11 (0.85 to 1.44)
Visit type
    Acute (v medical follow up)1.31 (1.04 to 1.66)
    Ob/gyn (v medical follow up)3.88 (2.77 to 5.42)
    Yearly physical (v medical follow up)35.83 (24.90 to 51.57)
     First/other (v medical follow up)9.82 (6.62 to 14.57)
    Sex (males v female) × acute1.77 (1.15 to 2.73)
    Ob/gyn × post-0.13 (0.08 to 0.22)
    Ob/gyn × follow up0.05 (0.03 to 0.09)