The Use of Respondent-Driven Sampling To Assess Febrile Illness Treatment-Seeking Behaviors Among Forest Goers in Cambodia and Vietnam
Abstract Background Countries in the Greater Mekong Subregion (GMS) aim to eliminate all forms of malaria by 2030. In Cambodia and Vietnam Forest goers are at highest risk of malaria. Universal access to prompt diagnosis and treatment is a core malaria intervention. This can only be achieved by understanding the health seeking behaviors among the most vulnerable groups and eliminating the barriers to prompt and effective treatment. This study aimed to improve understanding by exploring health seeking behaviors for febrile illness among populations at risk for malaria in Cambodia and Vietnam. Methods In 2019, researchers from Population Services International (PSI) conducted a population-based survey of forest goers in Cambodia and Vietnam using respondent-driven sampling (RDS). In Cambodia two operational districts, Oral and Phnom Srouch, in Kampong Speu Province were included in the study. In Vietnam, communes located within 15 km of the forest edge in Binh Phuoc and Gia Lai provinces were selected. Adults who had spent at least one night per week or four nights per month in the forest over the past three months were considered potential participants for the study. Results 75% in Cambodia and 65% in Viet Nam of forest goers sought treatment outside the home for illness. In Cambodia 39% sought treatment from the private sector, 32%, from community health workers and 24% from public health facilities. In Vietnam, 62% sought care from community facilities, 29.3% from the private sector and 6.9% went to a public facility. Amongst forest goers who sought care, 33% in Cambodia and 52% in Vietnam did so within 24 hours. Conclusions This study is consistent with others that show that early diagnosis and treatment of malaria remains an obstacle to malaria elimination. This study also demonstrates that there are gaps in timeliness of care seeking amongst forest goers. The findings from this study around provider preference and delays in treatment seeking behaviors can be utilized to strengthen the design and targeting of malaria interventions and social behavior change strategies in order to accelerate malaria elimination in Cambodia and Vietnam.