At the end of 2017, a Link NCA was conducted in seven refugee camps in Chad: five Sudanese camps in the East and two Central African camps in the South. In January, the Link NCA Technical Unit team travelled to N'Djamena to support the Office of the United Nations High Commissioner for Refugees (UNHCR) in running reporting and post-study programming workshops.   This study, which for the first time adopted a diverse comparative approach to observe the typology of each camp, took place in two stages. First, a SMART SENS + (with more indicators added, especially on gender issues) was conducted by a UNHCR consultant. Followed by a qualitative (socio-anthropological) survey, conducted by a Link NCA analyst accompanied by three research assistants. For the first time, a statistical correlation was performed (based on the results of the SMART SENS survey). These figures, crossed with the qualitative data, made it possible to quickly identify the main causal mechanisms in each camp. While the camps had factors that were common to them all, each context was observed to have its own particular and specific characteristics. It was also striking to observe that while the communities receive identical packages distributed by UNHCR, the prevalence of acute and chronic malnutrition and anaemia are staggering differences in some camps. After reviewing the results of the study, the UNHCR sub-delegation teams, with the support of the Link NCA Technical Unit, produced multisector action plans specific to each camp, which they presented to state actors and UN agencies and donors at a conference in N'Djamena on 18 January.