In short
The Katz Index of Independence in Activities of Daily Living rates independence in six functions: bathing, dressing, toileting, transferring, continence and feeding. Each is scored yes or no. The Hartford Institute for Geriatric Nursing describes 6 as full function, 4 as moderate impairment and 2 or less as severe impairment. Clinicians use it to plan care.
What it is used for
The Hartford Institute says clinicians use the Katz ADL to assess function, detect problems with daily activities and plan care. It is most useful when a baseline is taken while the person is well and compared over time.
Limits
- It covers basic ADLs, not household tasks (IADLs)
- It can miss small changes, such as during rehab
- A full geriatric assessment should follow when problems are found
For the form itself, see the Hartford Institute's page. Our own ADL and IADL checklist is an original tool for families.
Questions families ask
What does a Katz score of 6 mean?
Full function in all six activities, per the Hartford Institute.
Who developed the Katz Index?
It was developed in the late 1950s and later simplified, the Hartford Institute notes.
Does the Katz Index cover cooking or money?
No. Those are instrumental activities, measured by other tools.
Can families use the Katz Index?
It is a clinical tool. Families can use our original checklist to prepare for a conversation with the doctor.