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. 2016 Dec 21;6(12):e012812.
doi: 10.1136/bmjopen-2016-012812.

Burden of multimorbidity in relation to age, gender and immigrant status: a cross-sectional study based on administrative data

Jacopo Lenzi  1 , Vera Maria Avaldi  1 , Paola Rucci  1 , Giulia Pieri  1 , Maria Pia Fantini  1
Affiliations

Burden of multimorbidity in relation to age, gender and immigrant status: a cross-sectional study based on administrative data

Jacopo Lenzi et al. BMJ Open. .

Abstract

Objectives: Many studies have investigated multimorbidity, whose prevalence varies according to settings and data sources. However, few studies on this topic have been conducted in Italy, a country with universal healthcare and one of the most aged populations in the world. The aim of this study was to estimate the prevalence of multimorbidity in a Northern Italian region, to investigate its distribution by age, gender and citizenship and to analyse the correlations of diseases.

Design: Cross-sectional study based on administrative data.

Setting: Emilia-Romagna, an Italian region with ∼4.4 million inhabitants, of which almost one-fourth are aged ≥65 years.

Participants: All adults residing in Emilia-Romagna on 31 December 2012. Hospitalisations, drug prescriptions and contacts with community mental health services from 2003 to 2012 were traced to identify the presence of 17 physical and 9 mental health disorders.

Primary and secondary outcome measures: Descriptive analysis of differences in the prevalence of multimorbidity in relation to age, gender and citizenship. The correlations of diseases were analysed using exploratory factor analysis.

Results: The study population included 622 026 men and 751 011women, with a mean age of 66.4 years. Patients with multimorbidity were 33.5% in 75 years and >60% among patients aged ≥90 years; among patients aged ≥65 years, the proportion of multimorbidity was 39.9%. After standardisation by age and gender, multimorbidity was significantly more frequent among Italian citizens than among immigrants. Factor analysis identified 5 multimorbidity patterns: (1) psychiatric disorders, (2) cardiovascular, renal, pulmonary and cerebrovascular diseases, (3) neurological diseases, (4) liver diseases, AIDS/HIV and substance abuse and (5) tumours.

Conclusions: Multimorbidity was highly prevalent in Emilia-Romagna and strongly associated with age. This finding highlights the need for healthcare providers to adopt individualised care plans and ensure continuity of care.

Keywords: EPIDEMIOLOGY; PRIMARY CARE; PUBLIC HEALTH.

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Conflict of interest statement

Conflicts of Interest: None declared.

Figures

Figure 1
Figure 1
Prevalence values (%) of single diseases by gender.
Figure 2
Figure 2
Prevalence values (%) of single diseases by age group. Notes: Dark blocks represent high prevalence values, whereas light blocks represent low prevalence values. Cut-points of percentiles are displayed in the legend.
Figure 3
Figure 3
Number of chronic diseases by age group. Notes: Red dots indicate the prevalence of multimorbidity by age group.
See this image and copyright information in PMC

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