Dying in their prime: determinants and space-time risk of adult mortality in rural South Africa

Sartorius, Benn and Kahn, Kathleen and Collinson, Mark A. and Sartorius, Kurt and Tollman, Stephen M. (2013) Dying in their prime: determinants and space-time risk of adult mortality in rural South Africa. Geospatial Health, 7 (2). pp. 237-249. ISSN 1970-7096

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Abstract

A longitudinal dataset was used to investigate adult mortality in rural South Africa in order to determine location, trends, high impact determinants and policy implications. Adult (15-59 years) mortality data for the period 1993-2010 were extracted from the health and demographic surveillance system in the rural sub-district of Agincourt. A Bayesian geostatistical frailty survival model was used to quantify significant associations between adult mortality and various multilevel (individual, household and community) variables. It was found that adult mortality significantly increased over time with a reduction observed late in the study period. Non-communicable disease mortality appeared to increase and decrease in parallel with communicable mortality, whilst deaths due to external causes remained constant. Male gender, unemployment, circular (labour) migrant status, age and gender of household heads, partner and/or other household death, low education and low household socio-economic status were identified as significant and highly attributable determinants of adult mortality. Health facility remoteness was a risk for adult mortality and households falling outside a critical buffering zone were identified. Spatial foci of higher adult mortality risk were observed, indicating a strong non-random pattern. Communicable diseases differed from non-communicable diseases with respect to spatial distribution of mortality. Areas with significant excess mortality risk (hot spots) were found to be part of a complex interaction of highly attributable factors that continues to drive differential space-time risk patterns of communicable (HIV/AIDS and tuberculosis) mortality in Agincourt. The impact of HIV mortality and its subsequent lowering due to the introduction of antiretroviral therapy was found to be clearly evident in this rural population

Item Type:	Article
Uncontrolled Keywords:	Adult mortality, spatial risk, survival modelling, Bayesian inference, determinants, attributable fractions, health and demographic surveillance, South Africa
Subjects:	300 Scienze sociali > 304 Fattori influenzanti il comportamento sociale > 304.6 Popolazione (classificare qui l'Antropologia demografica, la Demografia; la composizione, l'entità numerica, la geografia della popolazione; le opere d'insieme sulla popolazione) 600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici) > 614 Medicina legale; incidenza delle malattie; Medicina preventiva pubblica > 614.4 Incidenza delle malattie e misure pubblica per prevenirle (classificare qui l'Epidemiologia, l'Epidemiologia clinica)
Depositing User:	Chiara D'Arpa
Date Deposited:	31 Jul 2014 09:17
Last Modified:	31 Jul 2014 09:17
URI:	http://eprints.bice.rm.cnr.it/id/eprint/9205

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