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The validation of the Italian Perceived Disability Scale (IPDS) in chronic daily headache sufferers.

ABSTRACT: The goals of this study were to assess the validity and usefulness of a new scale and to assess disability in a sample of patients with chronic daily headache. Participants were a convenience sample of 61 adult outpatients admitted to the Department of Medical Sciences of the Sant'Andrea Hospital in Rome, between September 2007 and May 2008. Inclusion criteria were, a diagnosis of chronic daily headache (illness duration >5 years). Patients were administered the Beck Hopelessness Scale (BHS), a specific section of the Mini-International Neuropsychiatric Interview (MINI) assessing suicidal intent, the Gotland Male Depression Scale (GMDS), and a scale devised to measure the degree of disability caused by the headache [Italian Perceived Disability Scale (IPDS)]. Analyses indicated that the IPDS had good internal consistency (Cronbach alpha = 0.93; average inter-item correlation = 0.40), and good convergent validity, with moderate to strong associations with measures assessing emotional distress (BHS, r = 0.47; P < 0.0001; GMDS, r = 0.72; P < 0.001). A single-item, logistic regression analysis indicated that the IPDS is able to predict suicide intent (Wald chi(2) = 5.04; P < 0.05) in chronic daily headache patients. The IPDS is a brief instrument that is useful for comparisons with other chronic illnesses, and it may be used both for basic research and clinical applications when screening for comorbidity with emotional distress and disorders.

SUBMITTER: Innamorati M

PROVIDER: S-EPMC3451762 | biostudies-other | 2009 Feb

REPOSITORIES: biostudies-other

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The validation of the Italian Perceived Disability Scale (IPDS) in chronic daily headache sufferers.

Innamorati Marco M Pompili Maurizio M De Filippis Sergio S Gentili Federica F Erbuto Denise D Lester David D Tamburello Antonino A Iacorossi Giulia G Cuomo Ilaria I Dominici Giovanni G Tatarelli Roberto R Martelletti Paolo P

The journal of headache and pain 20081015 1

The goals of this study were to assess the validity and usefulness of a new scale and to assess disability in a sample of patients with chronic daily headache. Participants were a convenience sample of 61 adult outpatients admitted to the Department of Medical Sciences of the Sant'Andrea Hospital in Rome, between September 2007 and May 2008. Inclusion criteria were, a diagnosis of chronic daily headache (illness duration >5 years). Patients were administered the Beck Hopelessness Scale (BHS), a ...[more]

PMID: 18854920

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Project description:BACKGROUND:Valid and reliable patient-reported outcome measures support health professionals in evaluating the results of clinical research and practice. The Copenhagen Neck Functional Disability Scale (CNFDS) has shown promising measurement properties to measure disability in patients with neck pain, but an Italian version of this questionnaire is not available. The objective of this study was to cross-culturally adapt the CNFDS into Italian (CNFDS-I), and to assess its validity and reliability in patients with neck pain. METHODS:The CNFDS-I was developed according to well-established guidelines for cross-cultural adaptation of patient-reported outcome measures. A cross-sectional clinimetric study was conducted to evaluate its validity and reliability. Patients with chronic neck pain (pain >?3 months) participated in this study. The following measurement properties (defined by the COSMIN initiative) were assessed: structural validity (exploratory factor analysis), internal consistency (Cronbach's ?), construct validity [by testing hypotheses on expected correlations with the Neck Disability Index (NDI), the Neck Bournemouth Questionnaire (NBQ), and pain Visual Analogue Scale (VAS)]. Test-retest reliability [Intraclass Correlation Coefficient for agreement (ICCagreement)], and measurement error [Smallest Detectable Change (SDC)] were also assessed in 50 clinically stable patients. Floor/ceiling effects and acceptability were calculated. RESULTS:One-hundred and sixty-two patients (mean age?=?47.9?±?14.5 years, 70% female) were included. The CNFDS-I exhibited sufficient unidimensionality (one factor explained 83% of the variability) and internal consistency (??=?0.83). Construct validity was sufficient as all correlations with the other questionnaires were as expected (r?=?0.846 with NDI, r?=?0.708 with NBQ, r?=?0.570 with VAS). Test-retest reliability was excellent (ICCagreement?=?0.99, 95% CI from 0.995 to 0.999), while measurement error was equal to 8.31 scale points (27% scale range). No floor/ceiling effects were detected. The average time for filling the questionnaire was two minutes. CONCLUSIONS:The CNFDS-I proved to be a valid and reliable outcome measure to assess disability in patients with chronic neck pain. Head-to-head comparison studies on the CNFDS-I measurement properties against other disability measures for neck pain (e.g. NDI and NBQ) are required to determine the relative merits of these different measures.

Dataset Information

The validation of the Italian Perceived Disability Scale (IPDS) in chronic daily headache sufferers.

Publications

The validation of the Italian Perceived Disability Scale (IPDS) in chronic daily headache sufferers.

Similar Datasets

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