Kappa statistics reflect the lower agreement for current smoking than ever smoked (0.673 versus 0.905).
Being concordant for having peers who smoked was a predictor of concordance for current smoking (P<0.001).
The adjusted odds ratio for current smoking men and women who started smoking before age of 18 years was 3.0 and 5.9 compared with their nonsmoking counterparts.
All relationships held with adjustment for current smoking status.
Two further sensitivity analyses were calculated where the extended model was additionally adjusted for current smoking and phosphorus levels, respectively.
Intake by dietary recall was marginally associated with 25OHD levels after adjustment for current smoking and race in linear regression.
Here, there were no significant differences between the adjusted and unadjusted rates for current smoking prevalence, percentage of smoker making quit attempts, and recent quit success.
Four of the 33 markers were modestly associated with FEV1% (p = <0.05) before and after adjustment for current smoking status (Table 2).
The results for current smoking are presented in Table 1.
This trend also presented in women for current smoking.
No significant linear trend for current smoking status was observed.
