The strong prevalence of human error as a crash causation factor in motorcycle accidents calls for countermeasures that help tackling this issue.
More evidence is needed for other areas of healthcare, "but we do know, obviously, that if people are not getting enough to eat or drink or washed as often because [staff] have not got the time, we know that those are causation factors that might lead to them not surviving.
Childhood leukaemia is resultant of a multiple causation factors.
Although studies conducted in the same regions of Arusha and Manyara showed that eating uncooked meat or meat products was a common practice [28], the current study did not find it to be a risk factor for brucellosis causation.
The observation that PPIs appear to increase the risk of OAC is explained by the treatment indication being a risk factor for OAC, reverse causation and the phenomenon of 'channeling', where high-risk patients are being prescribed PPIs whereas low-risk patients are being prescribed with lower doses or not at all, 15 22 47 51 52 a phenomenon often seen with PPIs and upper gastrointestinal bleeding.
Due to the limitations of the cross-sectional study on causation, we cannot infer that duration of diabetes is a risk factor for chronic complications.
These observations may implicate HIV/AIDS as a more important factor for mortality than TB, though paucity of death causation data means this assumption is difficult to make.
A recent study indicated the presence of high glycosylated hemoglobin (HbA1c) as a risk factor for NSD, suggesting the role of systemic factors in the causation of NSD in DME [ 21].
For this reason and due to the observational study design, these results cannot establish causation between HPV infection and HIV acquisition, but they suggest that HPV is a potentially significant risk factor for HIV acquisition in women.
Second, urban Chinese children are exposed to high risk factors for causation of myopia, such as increased near work activity hours, less outdoor activity hours, a crowded living environment, and a higher probability of having myopic parents [ 28, 29].
