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J Neurol Sci. 2014 Oct 15;345(1-2):213-9. doi: 10.1016/j.jns.2014.07.050. Epub 2014 Jul 28.

Individual factors enhance poor health-related quality of life outcome in multiple sclerosis patients. Significance of predictive determinants.

Author information

1
U.O.P. Professioni della Riabilitazione, Azienda Ospedaliera Universitaria Senese, Siena, Italy; Scuola di Dottorato in Scienze Cognitive, Università di Siena, Italy. Electronic address: cioncodavi@libero.it.
2
Neurologia e Neurofisiologia Clinica, Dipartimento di Scienze Neurologiche e Neurosensoriali, Azienda Ospedaliera Universitaria Senese, Siena, Italy.

Abstract

BACKGROUND:

Individual factors in multiple sclerosis (MS) patients may modify the reliability of health-related quality of life (HRQOL) assessment. Knowledge of these effects may enable physicians to identify patients at risk for poor perceived health.

OBJECTIVE:

To investigate what individual factors may interact with MS symptoms and their severity to modify the reliability of HRQOL assessment; to explore the predictive values of the significant variables identified.

METHODS:

HRQOL was assessed in 57 patients by the 36-Item Short Form Health Survey (SF-36). The Physical Component Summary and Mental Component Summary were dichotomized and applied as dependent variables for logistic regression analysis. The Functional Independence Measure (FIM), Expanded Disability Status Scale (EDSS), Fatigue Severity Scale (FSS), Cognitive Behavioral Assessment (CBA) and specific individual factors were tested as independent variables. Two-way contingency tables were used to calculate the predictive values.

RESULTS:

Unemployment, smoking, and night waking were the most significant individual factors. Introversion, physical pain and difficulty falling asleep were also significant. EDSS-total ≥2, EDSS-pyramidal ≥2, FIM ≤123, FSS ≥5, depressive manifestations and bowel/bladder dysfunction were significant MS-related determinants. Sensitivity and specificity differed widely for each variable.

CONCLUSIONS:

Individual factors have relevance in HRQOL assessment. Their identification may help physicians construct the patient's risk profile. Sensitivity and specificity add weight to the significance of variables.

KEYWORDS:

Behavioral symptoms; Disability evaluation; Multiple sclerosis; Outcome assessment; Prognosis; Quality of life

PMID:
25130927
DOI:
10.1016/j.jns.2014.07.050
[Indexed for MEDLINE]
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