Correlation between gun use and lower injury rates

Method of           % Completed     % Attacked     % Injured    Num Times
Self Protection                                                  Used(a)
Used gun                30.9            25.2            17.4       89,009
Used Knife              35.2            55.6            40.3       59,813
Used other weapon       28.9            41.5            22.0      104,700
Used physical force     50.1            75.6            50.8    1,653,880
Tried to get help
or frighten offender    63.9            73.5            48.9    1,516,141
Threatened or reasoned
with offender           53.7            48.1            30.7      955,398
Nonviolent resistance,
including evasion       50.8            54.7            34.9    1,539,895
Other measures          48.5            47.3            26.5      284,423
Any self-protection     52.1            60.8            38.2    4,603,671
No self-protection      88.5            41.5            24.7    2,686,960

Total                   65.4            53.7            33.2    7,290,631

T. Mark Gibson said:

The above table clearly shows that one may best improve ones odds of
surviving a criminal attack uninjured by defending one's self with a gun.

This table shows that "Used gun" is correlated
with lower injury rates. If two factors A and B are correlated, then
it is possible that A causes B, B causes A, some third factor
causes A and B, or any combination.

In this example, we can find plausible explanations involving all
three possibilities.

A causes B: Using a gun for self-protection lowers your chance of
injury in a robbery.

B causes A: Injury makes it harder for you to use a gun for
self-protection.

Third factor causes A and B: Preparing for possible robberies (for
example by being alert to your surroundings) lowers your chance of
injury. Part of that preparation may include carrying a gun.

It may be comforting to believe that carrying a gun can reduce your
chance of injury in robbery, but it is best not to let wishful
thinking cloud your judgment on this issue.

By the way, the data in the above table comes from the National Crime
Survey. I'm surprised that all the posters who loudly proclaimed that
the NCS was worthless for measuring gun use for self protection have
fallen silent. Why aren't they telling us that this table is
worthless for measuring the effectiveness of gun use for self
protection?

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