Table 2.
Biological health and lived health questions included in the MLIRT models and their parameter estimates for the final MLIRT models
| Biological health | Lived health | |||||||
|---|---|---|---|---|---|---|---|---|
| Questions | Discr | HDP | Thr1 | Thr2 | Discr | HDP | Thr1 | Thr2 |
| 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 | ||||
The subsets of local dependent questions are marked with (letter, number), with the letter indicating whether the local dependent questions are biological health questions (‘b’) or lived health questions (‘l’) and the number indicating the subset of local dependent questions. The questions of each subset of local dependent questions considered in the final model are marked with an asterisk *
Discr = item discrimination; Thr 1–2 = item threshold parameters; HPD = 95% highest posterior density interval