### Mediator model

Call:
glm(formula = bili_bin ~ trt, family = binomial(link = "logit"), 
    data = data)

Coefficients:
            Estimate Std. Error z value Pr(>|z|)
(Intercept)  0.08577    0.38245   0.224    0.823
trt         -0.08577    0.24091  -0.356    0.722

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 382.49  on 275  degrees of freedom
Residual deviance: 382.36  on 274  degrees of freedom
AIC: 386.36

Number of Fisher Scoring iterations: 3

### Outcome model

Call:
MASS::glm.nb(formula = platelet ~ trt + bili_bin, data = data, 
    init.theta = 7.759836932, link = log)

Coefficients:
            Estimate Std. Error z value Pr(>|z|)    
(Intercept)  5.59812    0.07330  76.368  < 2e-16 ***
trt          0.02040    0.04387   0.465  0.64190    
bili_bin    -0.13003    0.04388  -2.963  0.00304 ** 
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

(Dispersion parameter for Negative Binomial(7.7598) family taken to be 1)

    Null deviance: 291.56  on 275  degrees of freedom
Residual deviance: 282.41  on 273  degrees of freedom
AIC: 3281.8

Number of Fisher Scoring iterations: 1


              Theta:  7.760 
          Std. Err.:  0.669 

 2 x log-likelihood:  -3273.795 
### Mediation analysis 
            est          se         Z         p       lower      upper exp(est)
cde  0.02448142 0.052643871 0.4650383 0.6419040 -0.07869867 0.12766151 1.024784
pnde 0.02448142 0.052643871 0.4650383 0.6419040 -0.07869867 0.12766151 1.024784
tnie 0.00333063 0.009408267 0.3540110 0.7233307 -0.01510923 0.02177049 1.003336
tnde 0.02448142 0.052643871 0.4650383 0.6419040 -0.07869867 0.12766151 1.024784
pnie 0.00333063 0.009408267 0.3540110 0.7233307 -0.01510923 0.02177049 1.003336
te   0.02781205 0.053454381 0.5202950 0.6028580 -0.07695662 0.13258071 1.028202
pm   0.12122598 0.377371877 0.3212374 0.7480305 -0.61840931 0.86086126       NA
     exp(lower) exp(upper)
cde   0.9243184   1.136168
pnde  0.9243184   1.136168
tnie  0.9850043   1.022009
tnde  0.9243184   1.136168
pnie  0.9850043   1.022009
te    0.9259300   1.141771
pm           NA         NA

Evaluated at:
avar: trt
 a1 (intervened value of avar) = 2.3
 a0 (reference value of avar)  = 1.1
mvar: bili_bin
 m_cde (intervend value of mvar for cde) = 1.4
cvar: 
 c_cond (covariate vector value) = 

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