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Table 1 Patient characteristics at T0

From: Pedi-IKDC or KOOS-child: which questionnaire should be used in children with knee disorders?

Characteristic

Value

Male sex, n (%)

34 (33.7)

Mean age, years (SD)

15.0 (1.85)

Mean BMI, kg/m2 (SD)

20.70 (3.37)

Injury left side, n (%)

52 (51.5)

First visit, n (%)

51 (49.5)

First injury, n (%)

78 (77.2)

Injury duration, n (%)a

 

 0–1 months

15 (14.9)

 1–3 months

21 (20.8)

 4–6 months

22 (21.8)

 >  6 months

43 (42.6)

Diagnosis, n (%)

 

Anterior cruciate ligament rupture

24 (23.8)

 • Solitary

14 (13.9)

 • combined with anterolateral injury

3 (3)

 • combined with medial collateral ligament injury

2 (2)

 • combined with medial meniscus tear

5 (5)

Meniscal tear

7 (6.9)

Collateral ligament injury

2 (2)

Patellofemoral pain syndrome

22 (21.8)

Contusion/distorsion

11 (10.9)

Osgood-Schlatter

4 (4)

Chondropathy

10 (9.9)

Other

21 (20.8)

 • Baker’s cyst

1 (1)

 • Bone bruise

1 (1)

 • Lyme arthritis

1 (1)

 • Bone bruise

1 (1)

 • Patellar tendinopathy

3 (3)

 • Laxity anterior cruciate ligament

1 (1)

 • Osteochondritis dissecans

5 (5)

 • Patella luxation

1 (1)

 • Plica syndrome

2 (2)

 • Reumatoid arthritis

1 (1)

 • Sinding Larson

1 (1)

 • Unknown origin

3 (3)

  1. a percentages should not be summed up as number are rounded to one decimal place n, number of patients; SD Standard Deviation; cm, centimeter, kg kilogram, m meter, BMI Body Mass Index