Stat Methods Appl (2012) 21:211–226
DOI 10.1007/s10260-012-0188-1
Place of living and health inequality: a study for elderly
Italians
Elena Pirani · Silvana Salvini
Accepted: 25 January 2012 / Published online: 11 February 2012
© Springer-Verlag 2012
Abstract The aim of this study is to explore if the context matters in explaining
socioeconomic inequality in the self-rated health of Italian elderly people. Our hypoth-
esis is that health status perception is associated with existing huge imbalances among
Italian areas. A multilevel approach is applied to account for the natural hierarchical
structure, as individuals nested in geographical regions. Multilevel logistic regres-
sion models are performed including both individual and contextual variables, using
data from 2005 Italian Health survey. We prove that individual factors (compositional
effect), even representing the most important correlates of health, do not completely
explain intra-regional heterogeneity, confirming the existence of an autonomous con-
textual effect. These territorial differences are present among both Regions and large
areas, two geographical aggregations relevant in the domain of health. Moreover,
for some Regions, the account for contextual factors explains variations in perceived
health, leading to an overthrow of the initial situation: these Regions perform better
than expected in the field of health. For other Regions, the contextual elements intro-
duced do not catch the milieu heterogeneity. In this regard, we expect, and solicit, a
major effort toward data availability, qualitatively and quantitatively, that might help
in explaining residual territorial heterogeneity in health perception, a fundamental
starting point for targeting specific policy interventions.
Keywords Self-rated health · Old people · Territorial differences ·
Multilevel model · Regions
E. Pirani (B ) · S. Salvini
Department of Statistics “G. Parenti”, University of Florence, Viale GB Morgagni 59,
50134 Florence, Italy
e-mail: pirani@ds.unifi.it
S. Salvini
e-mail: salvini@ds.unifi.it
123