Table 1.

The objective maximum equivalent activity (MEA) score.

Maximum equivalent activity score (1–10)	Clinical activity/equivalent
1	Ability to walking around the house
2	Shortness of breath on eating/dressing
3	Shortness of breath on walking 200 yards flat
4	Shortness of breath on walking 400 yards flat
5	Shortness of breath on walking 1 flights of stairs
6	Shortness of breath on brisk walking
7	Shortness of breath on walking 2 flights of stairs
8	Shortness of breath on walking 3 flights of stairs
9	Shortness of breath on jogging
10	Shortness of breath on brisk swimming