Table 1 List of GPCRND-KOA

Pain or discomfort in night when lying in bed

No

0

Pain in activity or some position

1

Pain in non-activity

2

Morning stiffness or pain worse when getting out of bed

No

0

< 30 minutes

1

≥ 30 minutes

2

Pain or discomfort in walk

No

0

After walking in some distance

1

Pain at beginning of walk or worse

2

Arise from seat

Independent

0

Need assistance

1

The maximum walk distance(accompany with pain)

Unrestricted

0

Restricted, > 1 km

1

300 m ~ 1 km

2

< 300 m

3

Daily Activities

Board standard airstairs

0

1

2

Step down standard airstairs

0

1

2

Squat or bend knees

0

1

2

Walk over rough terrain

0

1

2