Development of the Knee Injury and Osteoarthritis Outcome Score for Children (KOOS-Child)

Figures & data

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