Table 2 Biological health and lived health questions included in the MLIRT models and their parameter estimates for the final MLIRT models

Communication

With what level of difficulty would you say you are able to:…

Speak intelligibly or utter coherent phrases?^(l,1)*

1.593

[1.543, 1.652]

1.942

3.308

0.865

[0.831, 0.902]

1.459

2.396

Understand what other persons say to you?^(l,1)

1.739

[1.663, 1.804]

2.139

3.769

Understand and express yourself in writing?

1.937

[1.851, 2.016]

2.179

3.013

Understand and express yourself via gestures, symbols, illustrations or sounds?

2.449

[2.359, 2.524]

3.112

4.442

Hold a dialogue and exchange ideas with one or more persons?

2.167

[2.074, 2.250]

2.471

3.965

Use the telephone or other devices or communication techniques?^(l,1)

1.455

[1.391, 1.501]

1.636

2.165

Learning and application of knowledge and development of tasks

With what level of difficulty are you able to:…

Hold a gaze or pay attention when listening?

1.904

[1.837, 1.965]

2.527

4.109

Learn to perform simple tasks?

2.090

[2.008,2.191]

2.412

3.239

Perform simple tasks?^(l,2)*

2.435

[2.304,2.532]

2.945

3.880

1.491

[1.430, 1.557]

2.306

3.019

Perform complex tasks?^(l,2)*

1.982

[1.895, 2.049]

2.084

2.830

1.106

[1.072, 1.139]

1.584

2.209

Mobility

At what level of difficulty are you able to:…

Change posture?^(b,1)

1.448

[1.406, 1.488]

0.106

3.240

Keep your body in the same position?^(b,1)

1.306

[1.266, 1.342]

−0.108

2.802

Walk and move around the home?^(b,1)*

1.205

[1.164, 1.242]

0.087

1.716

1.727

[1.666, 1.773]

0.304

3.438

Walk or move outside the home?^(b,2)*

1.056

[1.021, 1.084]

−0.391

1.194

1.456

[1.421, 1.487]

−0.142

2.498

Get around via public transport?^(b,2)

1.377

[1.341, 1.411]

−0.062

2.021

Drive vehicles?

Lift or carry objects?^(b,3)

1.239

[1.206, 1.268]

−0.181

1.742

Handle and move objects?^(b,3)

1.511

[1.473, 1.547]

0.035

2.319

Lift or carry small objects?^(b,3)*

1.158

[1.122, 1.196]

0.213

1.721

1.624

[1.577, 1.667]

0.246

2.487

Self-Care

With what level of difficulty would you say are you able to:…

Wash or dry different body parts?

2.690

[2.608, 2.781]

0.191

2.317

2.552

[2.471, 2.624]

0.908

3.840

Perform basic grooming?

2.474

[2.401, 2.544]

0.231

2.054

2.239

[2.167, 2.330]

0.918

3.040

Carry out activities related to urination?

2.423

[2.355, 2.492]

0.554

2.829

1.987

[1.933, 2.059]

0.957

3.358

Carry out activities related to defecation?

2.608

[2.499, 2.766]

1.059

3.118

2.401

[2.331, 2.462]

1.449

4.062

Carry out activities related to menstrual care?

Dress or undress?

2.916

[2.790, 3.034]

0.417

2.914

2.881

[2.810, 2.940]

1.294

4.495

Eat and drink?

2.299

[2.176, 2.393]

1.212

3.653

2.118

[2.033, 2.203]

1.739

4.596

Follow medical prescriptions?

3.201

[3.134, 3.285]

0.818

2.899

1.725

[1.660, 1.772]

1.437

2.905

Avoid dangerous situations?

3.218

[3.044, 3.385]

1.182

3.178

2.368

[2.294, 2.425]

1.464

3.170

Home Life

At what level of difficulty would you say are you able to:…

Do shopping?^(b,4)

1.505

[1.469, 1.535]

0.082

1.154

Prepare meals?

1.837

[1.794, 1.880]

0.329

1.161

1.893

[1.842, 1.937]

0.555

1.483

Carry out housework?^(b,4)*

1.375

[1.337, 1.410]

−0.173

0.812

1.661

[1.616, 1.700]

0.140

1.297

Interaction and interpersonal relations

With what level of difficulty would you say are you able to:…

Show others affection, respect or transmit feelings?

1.741

[1.657, 1.812]

2.421

3.726

Relate to strangers?

1.928

[1.848, 2.017]

2.294

3.060

Initiate and maintain relationships with subordinates, peers or superiors?

1.982

[1.919, 2.042]

2.471

3.134

Initiate and maintain relationships with friends, neighbours, acquaintances or colleagues?

1.827

[1.761, 1.884]

2.325

3.233

Initiate and maintain family relations?^(b,5)

Initiate and maintain intimate or sexual relations?^(b,5)*

1.644

[1.564, 1.730]

1.993

2.367