Validation of the death and dying distress scale (DADDS-Sp) in a population with advanced cancer in Chile
Author
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Fernández González, Loreto
Author
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Russo Namías, Moisés
Author
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Lagos, Rodrigo
Author
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Bravo, Paulina
Author
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Troncoso Vicencio, Alexis Ildefonso
Author
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Acevedo Echeverría, Claudia
Admission date
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2022-05-23T16:04:35Z
Available date
dc.date.available
2022-05-23T16:04:35Z
Publication date
dc.date.issued
2021
Cita de ítem
dc.identifier.citation
ecancer 2021, 15:1326
es_ES
Identifier
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10.3332/ecancer.2021.1326
Identifier
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https://repositorio.uchile.cl/handle/2250/185667
Abstract
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Introduction: Developing instruments to screen for relevant aspects of advanced illness
is key to identifying palliative needs and evaluating the effectiveness of interventions in
this population. The objective of this project is to validate the Death and Dying Distress
Scale in Spanish (DADDS-Sp) for screening anxiety about death and evaluating psychometric
properties for people with advanced cancer.
Methods: DADDS is a 15-item self-administered questionnaire that assesses thoughts
and feelings related to death and the process of dying. A cross-sectional, descriptive,
psychometric validation study was conducted in two cancer centres in Santiago de Chile.
Included were patients over 18 years of age with incurable and/or metastatic cancer,
fluent in Spanish, and a life expectancy of more than 3 months. Reliability was analysed
using Cronbach’s alpha, and confirmatory factor analysis was performed following the
model of the original scale.
Results: Seventy four patients participated in the study. The median age was 63 years.
Of the sample, 59% identified themselves as women. On average, participants reported
low anxiety about death (mean = 21, SD = 18). Women have more death anxiety. The
reliability analysis yielded a value of α = 0.93 (IC = 0.91–0.95). Factor analysis with a
one-factor structure yielded Comparative Fit Index (CFI) = 0. 0.972, Root Mean Square
Error of Approximation (RMSEA) = 0.092, Standardized Root Mean Square Residual (SRMR) = 0.085 and Tucker-Lewis Index (TLI) = 0.968. The model with a two-factor structure yielded CFI = 0.989, RMSEA = 0.059,
SRMR = 0.075 and TLI = 0.987, suggesting that the two-factor model has a better fit for the data studied.
Conclusions: DADDS-Sp is psychometrically valid for use in a Spanish-speaking population, yielding high reliability and internal consistency.
A majority of the Chilean patients reported a low level of anxiety about death although about 10% presented with severe anxiety, so their
identification for adequate clinical management is fundamental.
es_ES
Patrocinador
dc.description.sponsorship
National Fund for Research and Development in Health (FONIS) SA18I0058
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Lenguage
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en
es_ES
Publisher
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Cancer Intelligence Ltd, England
es_ES
Type of license
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Attribution-NonCommercial-NoDerivs 3.0 United States