| Variable | | Wave | File | Categories | Cross-wave |
| iheany | K19a Ever been told by a doctor or nurse that you have any of these serious illnesses | 9 | Responding Person File | details... | details ... |
| iheart | K19b Diagnosed with serious illness - Arthritis or osteoporosis | 9 | Responding Person File | details... | details ... |
| iheast | K19b Diagnosed with serious illness - Asthma | 9 | Responding Person File | details... | details ... |
| iheatsc | K17b Which ones? - Have to attend special classes / school | 9 | Responding Person File | details... | details ... |
| ihecan | K19b Diagnosed with serious illness - Any type of cancer | 9 | Responding Person File | details... | details ... |
| ihecbe | K19b Diagnosed with serious illness - Chronic bronchitis or emphysema | 9 | Responding Person File | details... | details ... |
| ihecspeq | K17b Which ones? - Need special equipment, modified environment, or other special arrangements | 9 | Responding Person File | details... | details ... |
| ihedep | K19b Diagnosed with serious illness - Depression or anxiety | 9 | Responding Person File | details... | details ... |
| ihedi1 | K19b Diagnosed with serious illness - Type 1 diabetes (also known as juvenile-onset or insulin-dependent diabetes) | 9 | Responding Person File | details... | details ... |
| ihedi2 | K19b Diagnosed with serious illness - Type 2 diabetes (also known as late-onset or non-insulin dependent diabetes) | 9 | Responding Person File | details... | details ... |
| ihedk2 | K19b Diagnosed with serious illness - Dont know | 9 | Responding Person File | details... | details ... |
| iheeddif | K17a Because of the condition[s] you have told me about, do you currently have any difficulties with education, such as those listed on SHOWCARD K17? | 9 | Responding Person File | details... | details ... |
| iheedqua | K16 Are you currently attending school or enrolled in a course of study to obtain an educational qualification? | 9 | Responding Person File | details... | details ... |
| iheeonas | K17b Which ones? - Need ongoing assistance or supervision | 9 | Responding Person File | details... | details ... |
| ihehbp | K19b Diagnosed with serious illness - High blood pressure or hypertension | 9 | Responding Person File | details... | details ... |
| ihehcd | K19b Diagnosed with serious illness - Heart disease | 9 | Responding Person File | details... | details ... |
| iheldif | K17b Which ones? - General learning difficulties | 9 | Responding Person File | details... | details ... |
| ihelstud | K18a Would you like to be enrolled at school or undertaking further study? | 9 | Responding Person File | details... | details ... |
| ihenostu | K18b Are you not enrolled in an educational course because of the condition(s) you have told me about? | 9 | Responding Person File | details... | details ... |
| ihensi | K21b Check if has one or more than serious illness condition at K19 | 9 | Responding Person File | details... | details ... |
| iheoc | K19b Diagnosed with serious illness - Any other serious circulatory condition (eg stroke, hardening of the arteries) | 9 | Responding Person File | details... | details ... |
| iheodif | K17b Which ones? - Other difficulties | 9 | Responding Person File | details... | details ... |
| iheomi | K19b Diagnosed with serious illness - Other mental illness | 9 | Responding Person File | details... | details ... |
| ihereshr | K17b Which ones? - Restricted in the number of hours can study | 9 | Responding Person File | details... | details ... |
| iherf2 | K19b Diagnosed with serious illness - Refused | 9 | Responding Person File | details... | details ... |
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