Compare the crude and adjusted analyses of the relationship of log 10 CO to recidivism in Problems

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Compare the crude and adjusted analyses of the relationship of log10CO to recidivism in Problems 14.8 and 14.9?


A Cox proportional-hazards model was fit to these data to assess the relationship between age, sex, number of cigarettes smoked, and log10CO concentration, when considered simultaneously, on the ability to remain abstinent from smoking. The results are given in Table 14.32.

Table 14.32 Proportional-hazards model relating the hazard of recidivism to age, sex, number of cigarettes smoked prior to quitting, and log10CO concentration

 Regression coefficient Standard error se(i) Risk factor Age Sex(1 = M/0 = F) Number of cigarettes smoked Log,,CO (adjust


aThis variable represents CO values adjusted for minutes elapsed since last cigarette smoked prior to quitting.

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