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Table 2 Parameter estimates and 95% CI of joint model with current value association structure

From: Illustration of association between change in prostate-specific antigen (PSA) values and time to tumor status after treatment for prostate cancer patients: a joint modelling approach

Parameter

Value

2.5%

97.5%

Longitudinal Process

   

Intercept

3.641

3.567

3.717

Months

-0.643

-0.700

-0.587

Treatment

   

 ADT+EBRT

0.180

0.077

0.285

 ADT+Prostatectomy

0.232

0.050

0.417

 ADT+Prostatectomy+EBRT

0.378

0.094

0.655

 EBRT

-0.978

-1.078

-0.881

 Prostatectomy

0.067

-0.072

0.202

 Prostatectomy+EBRT

-0.267

-0.518

-0.032

I(Month2)

-0.019

-0.024

-0.013

Months:Treatment

   

 Months:ADT+EBRT

0.270

0.190

0.350

 Months:ADT+Prostatectomy

0.428

0.302

0.554

 Months:ADT+Prostatectomy+EBRT

0.538

0.341

0.730

 Months:EBRT

-0.424

-0.496

-0.350

 Months:Prostatectomy

0.278

0.187

0.372

 Months:Prostatectomy+EBRT

0.423

0.292

0.556

Treatment:I(Months2)

   

 ADT+EBRT:I(Months2)

-0.009

-0.017

-0.001

 ADT+Prostatectomy:I(Months2)

-0.001

-0.011

0.009

 ADT+Prostatectomy+EBRT:I(Months2)

0.002

-0.011

0.016

 EBRT:I(Months2)

0.038

0.029

0.047

 Prostatectomy:I(Months2)

0.008

-0.001

0.017

 Prostatectomy+EBRT:I(Months2)

-0.017

-0.030

-0.049

 Event Time Process

   

BMI

0.119

0.028

0.204

Treatment

   

 ADT+EBRT

-0.192

-0.467

0.093

 ADT+Prostatectomy

-0.486

-0.902

-0.100

 ADT+Prostatectomy+EBRT

-1.329

-1.930

-0.764

 EBRT

0.721

0.427

1.025

 Prostatectomy

-0.468

-0.783

-0.132

 Prostatectomy+EBRT

-1.023

-1.534

-0.539

Assoct

0.368

0.309

0.426

tauBs

1.827

0.622

4.318