Table 7 Logistic regression models explaining factors related to missingness in each EPIC-26 domain

Multivariable model sample size

n = 533

n = 531

n = 530

n = 534

n = 479

OR

95% CI

p

OR

95% CI

p

OR

95% CI

p

OR

95% CI

p

OR

95% CI

p

Age

1.087

1.048–1.128

 < 0.001*

1.069

1.038–1.101

 < 0.001*

1.103

1.063–1.144

 < 0.001*

1.075

1.047–0.105

 < 0.001*

1.095

1.065–1.127

 < 0.001*

EAU cancer risk classification

0.085

0.146

0.293

0.046

0.120

 Low risk disease

1.000

1.000

1.000

1.000

 Intermediate risk disease

0.624

0.250–1.558

0.312

0.963

0.456–2.033

0.992

0.992

0.522–1.886

0.980

0.618

0.333–1.145

0.126

 High risk disease

1.548

0.700–3.424

0.280

1.629

0.811–3.274

0.170

1.846

1.011–3.372

0.046

1.068

0.604–1.890

0.821

 Advanced disease

1.616

0.505–5.169

0.418

2.067

0.772–5.533

0.148

1.169

0.443–3.086

0.753

1.347

0.569–3.189

0.498

EPIC scores ^a

 Urinary incontinence

0.603

0.272

0.632

0.321

 Urinary irritative

0.578

1.018

0.994–1.042

0.138*

0.703

0.986

0.973–0.999

0.040

 Bowel

0.670

0.354

0.230

0.974

0.961–0.988

 < 0.001*

 Sexual

0.809

0.316

0.227

0.993

0.984–1.002

0.113

 Hormonal

0.912

0.517

0.487

0.867

Relationship status

0.747

0.178

0.202

 < 0.001*

0.011

 In a relationship

1.000

1.000

1.000

 Not in a relationship

1.514

0.828–2.769

0.178

2.652

1.604–4.386

 < 0.001

1.971

1.170–3.320

0.011

Education level

0.027

0.060

0.006

0.006

 < 0.001*

 No vocational education

1.000

1.000

1.000

1.000

1.000

 Short vocational education

0.852

0.369–1.969

0.708

1.027

0.500–2.112

0.941

0.678

0.316–1.454

0.318

0.730

0.386–1.380

0.333

1.072

0.583–1.973

0.882

 Vocational education

0.785

0.347–1.773

0.560

0.540

0.253–1.153

0.111

0.334

0.145–0.769

0.010

0.473

0.249–0.901

0.023

0.289

0.145–0.575

 < 0.001

 Polytechnic

0.208

0.069–0.623

0.005

0.428

0.194–0.942

0.035

0.265

0.110–0.639

0.003

0.322

0.162–0.637

0.001

0.303

0.154–0.597

 < 0.001

 University education

0.365

0.121–1.103

0.074

0.535

0.225–1.275

0.158

0.251

0.087–0.728

0.011

0.386

0.180–0.827

0.014

0.153

0.059–0.399

 < 0.001

Self-rated health ^a

0.989

0.974–1.005

0.163

0.991

0.978–1.004

0.155

0.990

0.975–1.005

0.174

0.989

0.978–1.000

0.048

0.989

0.978–1.001

0.068

Treatment satisfaction

0.121

0.052*

0.224

0.620

0.035

 Unsatisfied or extremely unsatisfied

1.333

0.450–3.952

0.604

1.584

0.668–3.758

0.296

0.672

0.307–1.472

0.321

 Uncertain

2.267

1.032–4.979

0.042

2.225

1.127–4.391

0.021

1.480

0.577–3.801

0.415

 Satisfied or extremely satisfied

1.000

1.000

1.000