Table 3.
Children’s report of issues with completing the KOOS sorted and presented by item (n=34). Values are number reporting these issues
| Original questions from KOOS | Comprehension / terminology |
Item format |
Response format |
Mapping |
|---|---|---|---|---|
| Item S1 Do you have swelling in your knee? | 0 | 29 | 1 | 1 |
| Item S2 Do you feel grinding, hear clicking or any other type of noise when your knee moves? | 33 | 22 | 1 | 2 |
| Item S3 Does your knee catch or hang up when moving? | 15 | 20 | 0 | 1 |
| Item S4 Can you straighten your knee fully? | 2 | 20 | 1 | 1 |
| Item S5 Can you bend your knee fully? | 3 | 21 | 0 | 2 |
| Item S6 How severe is your knee joint stiffness after first wakening in the morning? | 7 | 20 | 9 | 2 |
| Item S7 How severe is your knee joint stiffness after sitting, lying or resting later in the day? | 11 | 23 | 9 | 0 |
| Item P1 How often do you experience knee pain? | 5 | 9 | 9 | 6 |
| Item P2 Twisting/pivoting on your knee | 22 | 10 | 12 | 3 |
| Item P3 Straightening knee fully | 16 | 9 | 11 | 1 |
| Item P4 Bending knee fully | 4 | 9 | 9 | 3 |
| Item P5 Walking on flat surface | 4 | 9 | 11 | 0 |
| Item P6 Going up or down stairs | 4 | 17 | 9 | 6 |
| Item P7 At night while in bed | 3 | 9 | 10 | 0 |
| Item P8 Sitting or lying | 6 | 11 | 9 | 0 |
| Item P9 Standing upright | 8 | 9 | 9 | 1 |
| Item A1 Descending stairs | 14 | 8 | 9 | 0 |
| Item A2 Ascending stairs | 4 | 8 | 9 | 4 |
| Item A3 Rising from sitting | 9 | 8 | 10 | 0 |
| Item A4 Standing | 14 | 9 | 8 | 1 |
| Item A5 Bending to floor/pick up an object | 16 | 8 | 11 | 1 |
| Item A6 Walking on flat surface | 10 | 8 | 10 | 1 |
| Item A7 Getting in/out of car | 6 | 8 | 9 | 0 |
| Item A8 Going shopping | 25 | 9 | 9 | 1 |
| Item A9 Putting on socks/stockings | 5 | 8 | 8 | 0 |
| Item A10 Rising from bed | 6 | 8 | 7 | 0 |
| Item A11 Taking of socks/stockings | 1 | 8 | 9 | 0 |
| Item A12 Lying in bed (turning over, maintaining knee position) | 12 | 8 | 9 | 1 |
| Item A13 Getting in/out of bath | 5 | 23 | 10 | 1 |
| Item A14 Sitting | 13 | 8 | 9 | 1 |
| Item A15 Getting on/off toilet | 7 | 7 | 7 | 1 |
| Item A16 Heavy domestic duties (moving heavy boxes, scrubbing floors etc) | 5 | 8 | 9 | 4 |
| Item A17 Light domestic duties (cooking, dusting etc) | 7 | 8 | 9 | 1 |
| Item SP1 Squatting | 10 | 8 | 8 | 5 |
| Item SP2 Running | 15 | 10 | 9 | 5 |
| Item SP3 Jumping | 9 | 9 | 7 | 5 |
| Item SP4 Twisting/pivoting on your injured knee | 23 | 8 | 8 | 4 |
| Item SP5 Kneeling | 31 | 8 | 7 | 2 |
| Item Q1 How often are you aware of your knee problem? | 15 | 1 | 5 | 1 |
| Item Q2 Have you modified your life style to avoid potentially damaging activities to your knee? | 8 | 1 | 8 | 1 |
| Item Q3 How much are you troubled with lack of confidence in your knee? | 13 | 1 | 9 | 1 |
| Item Q4 In general, how much difficulty do you have with your knee? | 19 | 2 | 2 | 3 |