Summary of data-extraction variables
| Covariate definition/label | |
| Fall | ICD-10-AM* three-digit codes W01, W03, W04, W05, W06, W07, W08, W10, W13, W17, W18, W19 |
| Injury | Two-digit codes T0, T1, T8, T9 and Three-digit code T79 |
| Fracture | Three-digit codes S12, S22, S32, S42, S52, S62, S72, S82, S92,T02, T08, T10, T12 |
| Event timing | Diagnosis timing code of ‘C,’ indicating that diagnosis occurred in hospital |
| Length of stay | Days |
| Year of fall | Financial year (1 July to 30 June) |
| Age | 5-year groups |
| Gender | Male, female |
| Marital status | Yes/no |
| Australian-born | Yes/no |
| English-speaking country of birth | Yes/no |
| Geographic setting | Metropolitan/rural |
| Socio-economic† | Based on the geographic area of residence, the lowest quartile of Socio-Economic Indexes for Areas score versus top three quartiles is presented for education occupation and education resources |
| Hospital care type | Acute/newborn, palliative, geriatric, mental/alcohol-related, rehabilitation, interim, nursing home |
| Admission type | Emergency, elective |
| Admission source | Home, transfer, other |
| Stay type | Sameday, multiday |
| Hospital type | Teaching, other |
| Diagnostic-related group | Medical, surgical, other |
| Previous fall history | Documentation in previous separation as presenting or in hospital fall (yes, no) |
| Presenting with fall | P fall (yes, no) |
| Comorbidities other than those listed in the Charlson Index | |
| Ataxia | Four-digit codes G110, G111, G112, G113, G114, G118, G119, R270, R278 |
| Deafness | Three-digit code H90, four-digit codes; H910, H911, H912, H913, H918, H919, Q780 |
| Delirium | Four-digit codes F050, F051, F058, F059, F104, F106, F114, F124, F134, F144, F154, F164, F174, F184, F194, F430 |
| Neuromyalgia | Four-digit code M792 |
| Osteoporosis | Three-digit codes; M80, M81, M82 |
| Parkinson's disease | Three-digit code G20 |
| Vision impairment | Three-digit codes; H53, H54 |
↵* All diagnostic codes are defined using ICD-10-AM.
↵† http://www.abs.gov.au/websitedbs/D3310114.nsf/home/Seifa_entry_page.