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Disease-related factors associated with health-related quality of life in people with nonadvanced HIV disease assessed using an Italian version of the MOS-HIV Health Survey.

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  • 1Department of Infectious Diseases, Catholic University of Rome, Italy.

Abstract

OBJECTIVE:

This study was intended to present evidence for the reliability and validity of an Italian version of the MOS-HIV Health Survey and to identify important disease-related factors associated with health-related quality of life (HRQoL) in people with nonadvanced HIV.

DESIGN:

In this cross-sectional study, HRQoL was measured using an Italian version of the MOS-HIV Health Survey questionnaire in 213 HIV-infected people without previous opportunistic infections or neoplasms attending an outpatient clinic in a university hospital. Distribution of scores, reliability, and validity were calculated, and presence and frequency of HIV-related symptoms were recorded and transformed into a score. The relation of HRQoL values to sociodemographic, epidemiologic, and clinical data was assessed.

RESULTS:

The level of internal consistency of the Italian version of the MOS-HIV Health Survey was high (Cronbach's alpha, 0.80-0.93), and items demonstrated acceptable discrimination across scales. At linear regression analysis, all domains of HRQoL correlated with symptom score (r2 range, 0.07-0.41), but only the pain and physical-functioning scores showed a significant correlation with CD4 cell count. A weighted sum of single domains of HRQoL, TOTQoL, is also strongly correlated with symptom score (r2 = 0.57; p < .0001) but not with CD4 cell count (r2 = 0.01; p = .1). Using multivariate analysis, only symptom score (p < .0001) and total number of daily pills (p = .03) showed significant association with HRQoL. The same results were observed when analysis was performed only on people with CD4 levels <200/microl.

CONCLUSIONS:

This study presents the first evidence for the reliability and validity of a HRQoL instrument in Italian for people with HIV. Results also suggest a strong impact of symptoms on all measured dimensions of health status. The number of pills required to be taken daily is the only other significant factor associated with a lower HRQoL, whereas no relations were found with CD4 cell count or Karnofsky performance status values. To improve HRQoL in persons with nonadvanced HIV disease, symptom control could be a crucial element of medical treatment.

PMID:
9420313
[PubMed - indexed for MEDLINE]
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