Originally posted by Teallaura
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A quick browse finds that parachute injury/fatality rates are usually given per jump, but pregnancy rates are given per year, making comparison difficult. However, harmonising them by assuming usage twice per week for both suggests that a regular contraceptive and parachute user* would have between 0.1% and 10% chance of getting pregnant per year, depending on method; a 10% chance of injury while parachuting and a 0.1% chance of death.
Thus it may be a good comparison.
Those misadventures you named are relatively rare; contraceptive failure is a daily occurrence...
Roy
*Not at the same time!
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