# DETERMINANTS OF RECOVERY FROM HIP FRACT/SUPPL (PROXY)

> **NIH NIH R01** · UNIVERSITY OF MARYLAND BALTIMORE · 1991 · $126,963

## Abstract

The purpose of the proposed study is to systematically evaluate proxy
respondent's ratings of current functional status and changese in
functional status in older persons.  Major issues to be addressed are
whether proxies over- or under-report present status and change in
functional status when compared to direct observations and self-reports
of older subjects themselves.  Proxy-subject agreement will also be
evaluated as a function of proxy and subject characteristics. The areas
of functioning to be studied include: physical and instrumental
activities of daily living; cognitive status; affective status and
social interaction.  For many areas of functioning, direct observations
of subjects will be made; hence, the validity of proxy responses will be
evaluated for these areas of questioning.

Study issues will be addressed through analysis of data obtained from
hip fracture patients enrolled in an ongoing study and a designated
proxy for each.  Subjects include hip fracture patients aged 65 and
older admitted from the conununity to 8 Baltimore area hospitals.  For
all patients (N=320) who will have a one year evaluation after May 1,
1991, data obtained through the parent study during the 6 and 12 month
post-fracture evaluation will be used.  In addition, a series of direct
observations of physical and instrumental activities of daily living
will be made.  A proxy respondent will also be identified for each
patient and interviewed within a week of the 12 month patient evaluation
to obtain his/her assessment of the patient's current functional status
and 6 month change in functioning.  Linear model analyses will be used
to evaluate the degree of agreement and bias in proxy reports compared
to direct observations and patient self-reports, and to evaluate the
effect of proxy and subject characteristics on the degree of agreement
and bias observed.

Study results will be useful for determining the extent to which proxy
respondents can be used for evaluating frequently asked questions about
patient functioning and change in functioning. Additionally, data will
be used to estimate the bias which may result from selecting particular
proxy respondents based on knowledge about the type of information
sought, and characteristics of the subject and proxy.

## Key facts

- **NIH application ID:** 3121844
- **Project number:** 1R01AG009902-01
- **Recipient organization:** UNIVERSITY OF MARYLAND BALTIMORE
- **SAM.gov UEI:** Z9CRZKD42ZT1
- **Principal Investigator:** JAY MAGAZINER
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 1991
- **Award amount:** $126,963
- **Award type:** 1
- **Project period:** 1991-04-01 → 1993-03-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/3121844

## Citation

> US National Institutes of Health, RePORTER application 3121844, DETERMINANTS OF RECOVERY FROM HIP FRACT/SUPPL (PROXY) (1R01AG009902-01). Retrieved via MORVS 2026-10-25 from https://api.morvs.ai/grant/nih/3121844. Licensed CC0.

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