Table 2 UK FROST EFA solution—pattern matrix

4—Ability to use a knife and fork

.898

− .178

6—Ability to carry a tray with a plate of food

.897

− .147

5—Ability to do household shopping

.862

− .031

3—Ability to go get in and out of a car/public transport

.662

.049

10—Ability to wash and dry under both arms

.650

.133

7—Ability to brush/comb hair with affected arm

.648

.137

9—Ability to hang up clothes with affected arm

.621

.161

2—Ability to get dressed

.559

.145

11—Pain interference with usual work

.531

.342

1—Pain severity (worst)

− .084

.769

12—Pain interference at night

− .083

.743

8—Pain severity (average)

.205

.537