Logistic regression Log likelihood = -4972.3539 Number of obs = 17,260 LR chi2(4) = 1029.03 Prob > chi2 = 0.0000 Pseudo R2 = 0.0938 all10 Coefficient Std. err. z P>|z| cigs_1 cigs_2 nonsmoker age _cons -1.285867 -1.982424 -1.223749 .1194541 -1.591489 .3358483 .572109 .1119583 ....