The intensive care experience

development of the ICE questionnaire

J. E. Rattray, Marie Johnston, J. A. W. Wildsmith

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Background Previous research has shown that patients' reported memories of intensive care are often of unpleasant events which are described as frightening and persecutory in nature. Currently, there is no standardized way of assessing perceptions of such an experience or relating it to long-term outcome.

Aims This paper describes the development of an intensive care experience questionnaire which aims to (a) identify the domains of such an experience, (b) assess and quantify that experience, and (c) explore its impact on short- and long-term emotional outcome.

Methods Data from two studies are reported. Participants were non-elective patients and greater than or equal to18 years of age with an ICU stay greater than or equal to24 hours. Study 1 (n = 34) generated and developed items. Study 2 (n = 109) allowed evaluation of the factor analytic structure and psychometrics of the questionnaire.

Results From a set of 31 items, exploratory factor analysis identified four components of the intensive care experience: 'awareness of surroundings' (nine items), 'frightening experiences' (six items), 'recall of experience' (five items), and 'satisfaction with care' (four items). Cronbach's alpha statistics were acceptable for each component (0.71-0.93). Correlational analysis with the subscales of the Hospital Anxiety and Depression Scale and Impact of Event Scale demonstrated concurrent and univariate predictive validity. The intensive care experience was associated with adverse emotional outcome in both the short- and long-term.

Discussion The intensive care experience questionnaire identified four dimensions of experience and performed satisfactorily in these developmental analyses. Further study of an independent intensive care unit data set is necessary to confirm these findings, including the four-component structure. Development of a standardized measure provides the opportunity to increase our understanding of the intensive care experience. The questionnaire may be useful to inform the development of effective interventions to improve subsequent outcomes for these patients.

Original languageEnglish
Pages (from-to)64-73
Number of pages9
JournalJournal of Advanced Nursing
Volume47
Issue number1
Early online date28 May 2004
DOIs
Publication statusPublished - Jun 2004

Keywords

  • questionnaire design
  • reliability
  • validity
  • exploratory factor analysis
  • intensive care experience
  • nursing
  • event scale
  • depression scale
  • hospital anxiety
  • impact
  • psychometrics
  • stress

Cite this

The intensive care experience : development of the ICE questionnaire. / Rattray, J. E.; Johnston, Marie; Wildsmith, J. A. W.

In: Journal of Advanced Nursing, Vol. 47, No. 1, 06.2004, p. 64-73.

Research output: Contribution to journalArticle

Rattray, J. E. ; Johnston, Marie ; Wildsmith, J. A. W. / The intensive care experience : development of the ICE questionnaire. In: Journal of Advanced Nursing. 2004 ; Vol. 47, No. 1. pp. 64-73.
@article{4a1f1ee1366b48be95c0e24715320aba,
title = "The intensive care experience: development of the ICE questionnaire",
abstract = "Background Previous research has shown that patients' reported memories of intensive care are often of unpleasant events which are described as frightening and persecutory in nature. Currently, there is no standardized way of assessing perceptions of such an experience or relating it to long-term outcome.Aims This paper describes the development of an intensive care experience questionnaire which aims to (a) identify the domains of such an experience, (b) assess and quantify that experience, and (c) explore its impact on short- and long-term emotional outcome.Methods Data from two studies are reported. Participants were non-elective patients and greater than or equal to18 years of age with an ICU stay greater than or equal to24 hours. Study 1 (n = 34) generated and developed items. Study 2 (n = 109) allowed evaluation of the factor analytic structure and psychometrics of the questionnaire.Results From a set of 31 items, exploratory factor analysis identified four components of the intensive care experience: 'awareness of surroundings' (nine items), 'frightening experiences' (six items), 'recall of experience' (five items), and 'satisfaction with care' (four items). Cronbach's alpha statistics were acceptable for each component (0.71-0.93). Correlational analysis with the subscales of the Hospital Anxiety and Depression Scale and Impact of Event Scale demonstrated concurrent and univariate predictive validity. The intensive care experience was associated with adverse emotional outcome in both the short- and long-term.Discussion The intensive care experience questionnaire identified four dimensions of experience and performed satisfactorily in these developmental analyses. Further study of an independent intensive care unit data set is necessary to confirm these findings, including the four-component structure. Development of a standardized measure provides the opportunity to increase our understanding of the intensive care experience. The questionnaire may be useful to inform the development of effective interventions to improve subsequent outcomes for these patients.",
keywords = "questionnaire design, reliability, validity, exploratory factor analysis, intensive care experience, nursing, event scale, depression scale, hospital anxiety, impact, psychometrics, stress",
author = "Rattray, {J. E.} and Marie Johnston and Wildsmith, {J. A. W.}",
year = "2004",
month = "6",
doi = "10.1111/j.1365-2648.2004.03066.x",
language = "English",
volume = "47",
pages = "64--73",
journal = "Journal of Advanced Nursing",
issn = "0309-2402",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - The intensive care experience

T2 - development of the ICE questionnaire

AU - Rattray, J. E.

AU - Johnston, Marie

AU - Wildsmith, J. A. W.

PY - 2004/6

Y1 - 2004/6

N2 - Background Previous research has shown that patients' reported memories of intensive care are often of unpleasant events which are described as frightening and persecutory in nature. Currently, there is no standardized way of assessing perceptions of such an experience or relating it to long-term outcome.Aims This paper describes the development of an intensive care experience questionnaire which aims to (a) identify the domains of such an experience, (b) assess and quantify that experience, and (c) explore its impact on short- and long-term emotional outcome.Methods Data from two studies are reported. Participants were non-elective patients and greater than or equal to18 years of age with an ICU stay greater than or equal to24 hours. Study 1 (n = 34) generated and developed items. Study 2 (n = 109) allowed evaluation of the factor analytic structure and psychometrics of the questionnaire.Results From a set of 31 items, exploratory factor analysis identified four components of the intensive care experience: 'awareness of surroundings' (nine items), 'frightening experiences' (six items), 'recall of experience' (five items), and 'satisfaction with care' (four items). Cronbach's alpha statistics were acceptable for each component (0.71-0.93). Correlational analysis with the subscales of the Hospital Anxiety and Depression Scale and Impact of Event Scale demonstrated concurrent and univariate predictive validity. The intensive care experience was associated with adverse emotional outcome in both the short- and long-term.Discussion The intensive care experience questionnaire identified four dimensions of experience and performed satisfactorily in these developmental analyses. Further study of an independent intensive care unit data set is necessary to confirm these findings, including the four-component structure. Development of a standardized measure provides the opportunity to increase our understanding of the intensive care experience. The questionnaire may be useful to inform the development of effective interventions to improve subsequent outcomes for these patients.

AB - Background Previous research has shown that patients' reported memories of intensive care are often of unpleasant events which are described as frightening and persecutory in nature. Currently, there is no standardized way of assessing perceptions of such an experience or relating it to long-term outcome.Aims This paper describes the development of an intensive care experience questionnaire which aims to (a) identify the domains of such an experience, (b) assess and quantify that experience, and (c) explore its impact on short- and long-term emotional outcome.Methods Data from two studies are reported. Participants were non-elective patients and greater than or equal to18 years of age with an ICU stay greater than or equal to24 hours. Study 1 (n = 34) generated and developed items. Study 2 (n = 109) allowed evaluation of the factor analytic structure and psychometrics of the questionnaire.Results From a set of 31 items, exploratory factor analysis identified four components of the intensive care experience: 'awareness of surroundings' (nine items), 'frightening experiences' (six items), 'recall of experience' (five items), and 'satisfaction with care' (four items). Cronbach's alpha statistics were acceptable for each component (0.71-0.93). Correlational analysis with the subscales of the Hospital Anxiety and Depression Scale and Impact of Event Scale demonstrated concurrent and univariate predictive validity. The intensive care experience was associated with adverse emotional outcome in both the short- and long-term.Discussion The intensive care experience questionnaire identified four dimensions of experience and performed satisfactorily in these developmental analyses. Further study of an independent intensive care unit data set is necessary to confirm these findings, including the four-component structure. Development of a standardized measure provides the opportunity to increase our understanding of the intensive care experience. The questionnaire may be useful to inform the development of effective interventions to improve subsequent outcomes for these patients.

KW - questionnaire design

KW - reliability

KW - validity

KW - exploratory factor analysis

KW - intensive care experience

KW - nursing

KW - event scale

KW - depression scale

KW - hospital anxiety

KW - impact

KW - psychometrics

KW - stress

U2 - 10.1111/j.1365-2648.2004.03066.x

DO - 10.1111/j.1365-2648.2004.03066.x

M3 - Article

VL - 47

SP - 64

EP - 73

JO - Journal of Advanced Nursing

JF - Journal of Advanced Nursing

SN - 0309-2402

IS - 1

ER -