Table 2 Number of reported outcomes for each prognostic factor

Age

5

1

1

3

2

-

-

1

1

1

-

Complications

Gender

3

3

-

-

-

-

1

2

1

1

-

SES/education

-

1

-

1

1

-

1

1

-

-

-

Comorbidities

4

3

-

1

1

-

1

1

-

-

2

BMI

2

-

-

-

2

1

-

-

-

-

-

Superficial infection Ascending and descending stairs

Radiological OA severity

3

-

-

1

-

-

1

1

-

-

-

Gait improvement

Patient expectations

-

-

-

1

-

1

-

-

-

-

-

Pain

3

-

-

4

-

1

1

-

-

-

-

Function

3

-

-

6

1

1

-

-

4

-

-

Assistance from another person for ADL, flexion

Health related quality of life

4

3

1

2

1

-

1

1

-

-

-

Mental well-being

2

1

-

-

1

-

1

2

-

-

-

HOOS