### Mediator model

Call:
lm(formula = bili ~ trt + age + male + stage, data = data)

Residuals:
   Min     1Q Median     3Q    Max 
-2.963 -1.808 -1.136  0.187 25.096 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)  
(Intercept) -0.736248   1.705548  -0.432   0.6665  
trt          0.568502   0.537608   1.057   0.2916  
age          0.006127   0.026304   0.233   0.8161  
male         0.337307   0.753642   0.448   0.6550  
stage        0.727713   0.312232   2.331   0.0208 *
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 3.704 on 191 degrees of freedom
Multiple R-squared:  0.04002,	Adjusted R-squared:  0.01992 
F-statistic: 1.991 on 4 and 191 DF,  p-value: 0.09755

### Outcome model

Call:
glm(formula = spiders ~ trt + bili + age + male + stage, family = binomial(link = "logit"), 
    data = data)

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.7192  -0.7643  -0.5101   0.9481   2.2500  

Coefficients:
            Estimate Std. Error z value   Pr(>|z|)    
(Intercept) -3.11819    1.02868  -3.031    0.00244 ** 
trt         -0.30988    0.29758  -1.041    0.29772    
bili         0.08697    0.03048   2.854    0.00432 ** 
age         -0.01183    0.01484  -0.797    0.42534    
male        -1.31047    0.58548  -2.238    0.02520 *  
stage        0.96743    0.21049   4.596 0.00000431 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 332.32  on 275  degrees of freedom
Residual deviance: 283.58  on 270  degrees of freedom
AIC: 295.58

Number of Fisher Scoring iterations: 4

### Mediation analysis 
             est         se          Z         p       lower     upper  exp(est) exp(lower) exp(upper)
cde  -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
pnde -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
tnie  0.05932853 0.05983271  0.9915736 0.3214056 -0.05794142 0.1765985 1.0611238  0.9437052   1.193152
tnde -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
pnie  0.05932853 0.05983271  0.9915736 0.3214056 -0.05794142 0.1765985 1.0611238  0.9437052   1.193152
te   -0.31252748 0.35995643 -0.8682370 0.3852646 -1.01802912 0.3929742 0.7315955  0.3613063   1.481380
pm   -0.15700937 0.27644332 -0.5679623 0.5700606 -0.69882831 0.3848096        NA         NA         NA

Evaluated at:
avar: trt
 a1 (intervened value of avar) = 2.3
 a0 (reference value of avar)  = 1.1
mvar: bili
 m_cde (intervend value of mvar for cde) = 1.4
cvar: age male stage
 c_cond (covariate vector value) = 50 1 2

Note that effect estimates do not vary over m_cde and c_cond values when interaction = FALSE.

### Re-evaluation at c_cond = cmean
             est         se          Z         p       lower     upper  exp(est) exp(lower) exp(upper)
cde  -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
pnde -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
tnie  0.05932853 0.05983271  0.9915736 0.3214056 -0.05794142 0.1765985 1.0611238  0.9437052   1.193152
tnde -0.37185601 0.35709551 -1.0413349 0.2977202 -1.07175036 0.3280383 0.6894535  0.3424087   1.388242
pnie  0.05932853 0.05983271  0.9915736 0.3214056 -0.05794142 0.1765985 1.0611238  0.9437052   1.193152
te   -0.31252748 0.35995643 -0.8682370 0.3852646 -1.01802912 0.3929742 0.7315955  0.3613063   1.481380
pm   -0.15700937 0.27644332 -0.5679623 0.5700606 -0.69882831 0.3848096        NA         NA         NA
