This article is very, very typical of someone who knows enough about cycling to ask questions, but not enough to answer them. I work in the transportation industry. I live car-free. I teach bicycle education. I work with regional transportation agencies, police departments, city planners/councils, and universities to facilitate the use of non-driver-only transportation.
The title of the article should be more direct to the reader: "How Likely Am I to be Injured While Riding My Bike?" That's what people want to know, after all. "How likely am *I* to be hurt?" Most people are concerned with the risks associated with bike commuting or running errands on two-wheels, so let's focus on that. So, let's omit all recreational mountain biking and all competitive (and "training") rides from the data for now. Next, we must differentiate between collisions and solo falls. Most importantly, differentiate between those who have received official bicycle education and those who have not.
Make all those controls and you'll find that an educated cyclist riding on a road where the average speed is 40mph or lower with a small variety of visibility tactics will have an injury only very rarely. And it will likely be due to environmental hazards.
A preferred list of questions for every bike injury logged:
Has the injured bicyclist received bicycle-specific education? (League of American Bicyclists Traffic Skills 101, Cycle Savvy, Other)
Why kind of riding prompted the injury?
Recreation Paved (roadways, sidewalks, off-street paths)
Recreation Off-Road (dirt, etc.)
Recreation Mixed Terrain (Bike Touring)
Competitive Paved (including training)
Competitive Off-Road (including training)
Utility Paved (Commuting, Errands)
Utility Off-Road
What caused the injury to the cyclist?
Collision (automobile)
Collision (bicycle)
Collision (pedestrian)
Collision (animal)
Collision (mixed)
Solo-Fall (road condition)
Solo-Fall (other)
Strain/Sprain/Other Condition (torn ligament, seizure, etc.)
Which visibility tactics/items were implemented by the bicyclist?
Central/Left of Center Lane Position
High Visibility Colors
All Legally Required Reflectors
Reflectivity Beyond Requirements
Tail Light
Headlight ("see me")
Headlight ("see you")
Which of the following faults were performed by the cyclist?
Neglect to Yield to Right of Way
Inappropriate Lane Position
Travel Against Traffic
Speeding
Other
None
Which of the following faults were performed by others involved?
Neglect to Yield to Right of Way
Inappropriate Lane Position
Travel Against Traffic
Speeding
Other
None
Where did the injury take place?
On-Road, in an intersection
On-Road, within 200 feet of an intersection
On-Road, 200 feet or farther from an intersection
Off-Road
On a Sidewalk
On an Off-Street Path
What is the average speed on the road at the point of injury?
5-20
21-40
41+