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Table 1 Example of GAS goal topics and scores in (fictitious) patients with mitochondrial disease

From: Goal attainment scaling as an outcome measure in rare disease trials: a conceptual proposal for validation

Goals

-2 score

0 score (expected outcome level)

+ 2 score

Being able to cook for me and my partner

The patient cooks once a week or less

The patient cooks three times a week

The patient cooks five times a week or more

Being able to watch a film at night without falling asleep

The patient can watch a series episode of 25 min without falling asleep

The patient can watch a series episode of 50 min without falling asleep

The patient can watch a film of 2 h without falling asleep

Being able to dress myself independently

The patient needs help with putting on a shirt and pants

Patient can put on a shirt, but needs help with pants

The patient can dress him/herself without any help