  3.952 7.77e-05 ***
## age:skin    -0.003628   0.001316  -2.756  0.00585 ** 
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 420.3  on 331  degrees of freedom
## Residual deviance: 364.1  on 328  degrees of freedom
## AIC: 372.1
## 
## Number of Fisher Scoring iterations: 4</code></pre>
<p>Logit models (like all GLMs) present the dual challenges of having coefficients that are directly uninter