Risk Factors Among Fishermen. Fishermen have a higher mortality from cardiovascular disease, cancer and accident. It is generally agreed that the majority of cardiovascular disease (CVD) is caused by external risk factors that can be controlled, treated or modified, such as the diet, tobacco, alcohol and lack of physical activity.This study aimed to determine the prevalence of, and risk factors for, S. mansoni infection among the fishermen of Lake Hawassa, southern Ethiopia, using a cross-sectional study design. A total of 243 fishermen were selected from the Hawassa Town Fishermen Association’s list in 2013. Data on socio-demographic characteristics and risk factors were collected from the fishermen