Originally Posted by
joejack951
...
If you look at this chart and consider the age groups likely to be riding bikes, falls are far from an overwhelming leading cause:
There's a whole lot of 'unknown' in the data (which makes it questionable to begin with) and in the highly active age brackets there's that big orange section.
You know what's wrong with reasoning from that graph to overall causes of TBI, right? It's not the large "unknown", but consider what it says about the numbers of TBI cases by cause (ie, nothing) and about the non-hospitalized (ER) incidents of TBI (again nothing). The chart shows that injuries from falls are relatively infrequent for the 15-44 age group, but doesn't tell you anything about the aggregate. If there were some absolute numbers in addition to the percentages, it would probably resemble the other chart you saw that had falls accounting for 40.5% of the TBI injuries.
It's probably better to pick a chart or table that directly illustrates your point or theory, which is (I think) that most TBI's are
not the result of falls? Or not on hard flat surfaces? What is the significance of that, if you're right?