borderline significantp = 0.059
In nonsmokers (never-smokers and ex-smokers) alone, age had a borderline significant effect on MF (p = 0.059), whereas gender was not significantly associated with MF.
In nonsmokers (never-smokers and ex-smokers) alone, age had a borderline significant effect on MF (p = 0.059), whereas gender was not significantly associated with MF.
In nonsmokers alone, however, the effect of age on MF approached significance, and gender had no effect.