Items analysis of the Frailty Index (FI-35): Insight in the contribution of each item to the level of frailty

Xiaohong Zhang; C P Van Der Schans; Yanhui Liu; W Krijnen; J S M Hobbelen

doi:10.1371/journal.pone.0258588

Items analysis of the Frailty Index (FI-35): Insight in the contribution of each item to the level of frailty

Xiaohong Zhang
, C P Van Der Schans
, Yanhui Liu
, W Krijnen
, J S M Hobbelen

Healthy Ageing, Allied Health Care and Nursing

Tianjin University of Traditional Chinese Medicine
The Northern Netherlands Alliance SNN
University Medical Center Utrecht, Department of Rehabilitation Medicine
University of Groningen
University of Groningen, University Medical Center Groningen
Department of Psychology, Health and Technology, University of Twente, Enschede
University of Groningen, University Medical Center Groningen, Faculty of Medical Sciences, Department of General Practice, Geriatrics

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

BACKGROUND: The FI-35 is a valid multidimensional Chinese frailty assessment instrument. Like other scales, functional measures rely on the information the total score provides. Our research aimed to analyze the contribution of each item.

METHODS: Descriptive statistics were used to summarize the sample characteristics. The expected item score (EIS) was used to determine how the items contribute to the generic measure of frailty.

RESULTS: This study showed that most of the EIS curves increased across the entire range of frailty levels, and most of the items discriminate relatively well over the entire frailty range. Items differentially contributed to the total frailty score and differentially discriminated between frailty levels.

CONCLUSIONS: Although nearly all items monotonically increased with frailty levels, there were large differences between items in their ability to differentiate between persons being either weakly, moderately or highly frail.

Original language	English
Number of pages	13
Journal	PLOS ONE
Volume	16
Issue number	11 November
DOIs	https://doi.org/10.1371/journal.pone.0258588
Publication status	Published - 8 Nov 2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 03 Good Health and Well-being

Keywords

frailty
assessment
older people
measurements

Research Focus Areas Hanze University of Applied Sciences * (mandatory by Hanze)

Healthy Ageing

Research Focus Areas Research Centre or Centre of Expertise * (mandatory by Hanze)

Frailty and adequate care

Publinova themes

Other

Access to Document

10.1371/journal.pone.0258588Licence: CC BY

Cite this

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title = "Items analysis of the Frailty Index (FI-35): Insight in the contribution of each item to the level of frailty",

abstract = "BACKGROUND: The FI-35 is a valid multidimensional Chinese frailty assessment instrument. Like other scales, functional measures rely on the information the total score provides. Our research aimed to analyze the contribution of each item.METHODS: Descriptive statistics were used to summarize the sample characteristics. The expected item score (EIS) was used to determine how the items contribute to the generic measure of frailty.RESULTS: This study showed that most of the EIS curves increased across the entire range of frailty levels, and most of the items discriminate relatively well over the entire frailty range. Items differentially contributed to the total frailty score and differentially discriminated between frailty levels.CONCLUSIONS: Although nearly all items monotonically increased with frailty levels, there were large differences between items in their ability to differentiate between persons being either weakly, moderately or highly frail.",

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author = "Xiaohong Zhang and \{Van Der Schans\}, \{C P\} and Yanhui Liu and W Krijnen and Hobbelen, \{J S M\}",

year = "2021",

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doi = "10.1371/journal.pone.0258588",

language = "English",

volume = "16",

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T1 - Items analysis of the Frailty Index (FI-35)

T2 - Insight in the contribution of each item to the level of frailty

AU - Zhang, Xiaohong

AU - Van Der Schans, C P

AU - Liu, Yanhui

AU - Krijnen, W

AU - Hobbelen, J S M

PY - 2021/11/8

Y1 - 2021/11/8

N2 - BACKGROUND: The FI-35 is a valid multidimensional Chinese frailty assessment instrument. Like other scales, functional measures rely on the information the total score provides. Our research aimed to analyze the contribution of each item.METHODS: Descriptive statistics were used to summarize the sample characteristics. The expected item score (EIS) was used to determine how the items contribute to the generic measure of frailty.RESULTS: This study showed that most of the EIS curves increased across the entire range of frailty levels, and most of the items discriminate relatively well over the entire frailty range. Items differentially contributed to the total frailty score and differentially discriminated between frailty levels.CONCLUSIONS: Although nearly all items monotonically increased with frailty levels, there were large differences between items in their ability to differentiate between persons being either weakly, moderately or highly frail.

AB - BACKGROUND: The FI-35 is a valid multidimensional Chinese frailty assessment instrument. Like other scales, functional measures rely on the information the total score provides. Our research aimed to analyze the contribution of each item.METHODS: Descriptive statistics were used to summarize the sample characteristics. The expected item score (EIS) was used to determine how the items contribute to the generic measure of frailty.RESULTS: This study showed that most of the EIS curves increased across the entire range of frailty levels, and most of the items discriminate relatively well over the entire frailty range. Items differentially contributed to the total frailty score and differentially discriminated between frailty levels.CONCLUSIONS: Although nearly all items monotonically increased with frailty levels, there were large differences between items in their ability to differentiate between persons being either weakly, moderately or highly frail.

KW - frailty

KW - assessment

KW - older people

KW - measurements

KW - kwetsbaarheid

KW - beoordeling

KW - ouderen

KW - metingen

U2 - 10.1371/journal.pone.0258588

DO - 10.1371/journal.pone.0258588

M3 - Article

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JO - PLOS ONE

JF - PLOS ONE

IS - 11 November

ER -

Items analysis of the Frailty Index (FI-35): Insight in the contribution of each item to the level of frailty

Abstract

UN SDGs

Keywords

Research Focus Areas Hanze University of Applied Sciences * (mandatory by Hanze)

Research Focus Areas Research Centre or Centre of Expertise * (mandatory by Hanze)

Publinova themes

Access to Document

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Cite this