Loss of Chance Doctrine

Loss of Chance Doctrine

Loss of Chance Doctrine

The doctrine treats the lost chance itself as the compensable injury, typically awarding a percentage of full damages corresponding to the probability reduction. It applies where the plaintiff's baseline prospects were already poor.

It is distinct from treating increased risk as establishing full causation.

Alternative Names:

Lost Chance Doctrine, Loss of Opportunity

Why it Matters?

Proportional valuation is what distinguishes this doctrine from increased risk theories, since a plaintiff whose survival probability fell from forty to ten percent recovers thirty percent of full damages rather than everything or nothing. That structure appeals to courts uncomfortable with both traditional causation's harshness and full recovery on a minority probability. Which approach a state takes materially changes case value in delayed diagnosis litigation.

Frequently asked questions

How are loss of chance damages calculated?

How are loss of chance damages calculated?

Commonly as a percentage of full damages equal to the probability reduction, so a drop from forty to ten percent yields thirty percent recovery.

Why do courts adopt it?

Why do courts adopt it?

Because it avoids both denying recovery entirely where baseline prospects were poor and awarding full damages on a minority probability.