Table 6.

Mixed-model analysis on the effects of Ki-67 (n = 200)

CovariatesEstimateSEP
SQM (+ vs −)0.620.05<0.0001
Quit-years
    1 to <5 y vs current smokers−0.210.060.0004
    ≥5 y vs current smokers−0.370.06<0.0001
Treatment
    CCX (dose 0 vs placebo)0.090.050.12
    CCX (dose +1 vs placebo)0.100.050.03
Time (3 mo vs baseline)0.090.050.049
Treatment time
    CCX (dose 0 vs placebo at 3 mo)−0.020.080.79
    CCX (dose +1 vs placebo at 3 mo)−0.170.070.02

Abbreviation: SQM, any squamous metaplasia.