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Background: General anaesthesia (GA) in developing countries is still a high-risk practice, especially in Africa, accompanied with high morbidity and mortality. No study has yet been conducted in Butembo in the Democratic Republic of the Congo to determine the mortality related to GA practice. The main objective of this study was to assess mortality related to GA in Butembo. Methods: This was a retrospective descriptive and analytic study of patients who underwent surgery under GA in the 2 main teaching hospitals of Butembo from January 2011 to December 2015. Data were collected from patients files, anaesthesia registries and were analysed with SPSS 26. Results: From a total of 921 patients, 539 (58.5%) were male and 382 (41.5%) female patients. A total of 83 (9.0%) patients died representing an overall perioperative mortality rate of 90 per 1000. Out of the 83 deaths, 38 occurred within 24 h representing GA related mortality of 41 per 1000. There was a global drop in mortality from 2011 to 2015. The risk factors of death were: being a neonate or a senior adult, emergency operation, ASA physical status > 2 and a single deranged vital sign preoperatively, presenting any complication during GA, anaesthesia duration > 120 minutes as well as visceral surgeries/laparotomies. Ketamine was the most employed anaesthetic. Conclusion: GA related mortality is very high in Butembo. Improved GA services and outcomes can be obtained by training more anaesthesia providers, proper patients monitoring, improved infrastructure, better equipment and drugs procurement and considering regional anaesthesia whenever possible. [ABSTRACT FROM AUTHOR]

• We use difference-in-differences estimators suitable for heterogeneous effects. • The study finds no evidence that DRC's logging concessions increase or decrease deforestation and forest degradation. • The study finds no evidence that logging concessions reduce deforestation in high deforestation pressure areas. The Congo Basin is home to the second largest tropical humid forest in the world and an important participant in climate change mitigation. While the Democratic Republic of Congo (DRC) boasts the largest proportion of Congo basin forests, it is also the main contributor to forest loss. Industrial logging concession is a forest management model that is likely to expand in the DRC in the coming years as the Government recently announced the probable end of the 2002 moratorium on logging concessions. It is thus crucial to understand whether this model can further the DRC's deforestation reduction efforts. The literature suggests that the effect of titling forestland on avoided deforestation and forest degradation is generally limited, unless environmental restrictions are enforced. The DRC's 2002 forest code introduced a new logging concession model that includes requirements to submit and implement Forest Management Plans (FMP) and increase benefit-sharing with communities. Our paper evaluates the impact of this new model of concession contracts signed in 2011 and 2014 on deforestation and forest degradation. We use remotely sensed data series to estimate difference-in-difference models. We ensured baseline parallel trends in deforestation and similarity in baseline characteristics between control and treated units. We find no evidence that deforestation and forest degradation is significantly different between logging concessions and control areas, even for concessions that had their FMP accepted. Our study highlights the need for evaluating the impact of FMPs once they are fully implemented, the importance to improve degradation outcome variables and to conduct complementary studies analyzing impact pathways. [ABSTRACT FROM AUTHOR]