Abstract (by author) > Rivo RANDRIANASOLO

With basic training in software engineering and database management, Rivomalala RANDRIANASOLO subsequently specialized in epidemiology through the Field Epidemiologist Training Program (FETP) of the IOC's SEGA-One Health network.
Given his background, he has been deployed on a large part of the investigation and response to epidemics in Madagascar. But he is also involved in the design and management of integrated epidemiological surveillance systems using NICTs. The surveillance systems in question are varied: non-communicable diseases, infectious diseases, events, mortality, intersectoral information sharing within a One Health framework. His expertise and experience in health information systems, geographic information systems, DHIS2 and field epidemiology mean that he is also one of the trainers of health professionals in the IOC's FETP Frontline One Health program in Madagascar.

3:30 PM- Recent and forthcoming regional research (session 4)

Impact of climatic factors on deaths from non-communicable diseases in Madagascar in 2024

The Indian Ocean islands are all facing epidemiological transition to varying degrees, with non-communicable diseases (NCDs) becoming increasingly important. In line with the global trend, NCDs are currently the leading causes of mortality in these islands. Moreover, in a context of global warming, the literature speaks of links between climatic factors and NCDs. However, the health impacts of climatic parameters on NCDs are very poorly measured in southern countries. Within a One Health framework, the present study aims to quantify hospital deaths due to communicable diseases in Madagascar, with their variations at the level of the different regions and according to the main climatic parameters, namely precipitation and temperature, in order to propose mitigation and/or adaptation measures.

Mortality data by region come from DHIS2 Surveillance and routine platforms for the year 2024. Climatic data were collected from the island's meteorological services. The analysis consisted of a description in terms of time-place and individual characteristics of deaths due to NCDs, followed by a verification of the potential association with climatic factors: 4,927 deaths were recorded nationwide in hospital structures during 2024. Regional disparities were observed. Deaths linked to cardiovascular and respiratory diseases show variations associated with climatic parameters.

The disparities observed justify the importance of integrated surveillance combining health and climate data, ensuring that the system is sensitive enough to capture all deaths.  Mitigation measures, including raising awareness among at-risk individuals of preventive behaviors during critical periods and in exposed regions, are feasible.