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Table 1 Data of patients with negative and positive K. kingae BJI cases

From: First report of Kingella kingae diagnosed in pediatric bone and joint infections in Morocco

Characteristics

K. kingae- negative cases N = 19

K. kingae-positive cases N = 27 (58.7%)

P-value

Demographics:

Age (years)

  < 6 months

0 (0)

4 (14.8)

0.009

 6–59 months

5 (26.3)

15 (55.6)

 5 y-10 y

14 (73.7)

8 (29.6)

Gender

 Male

12 (63.2)

17 (63.0)

0.618

 Female

7 (36.8)

10 (37.0)

Origin

 Rural

8 (42.1)

8 (29.6)

0.287

 Urban

11 (57.9)

19 (70.4)

Admission features:

Type of the infection

 Septic arthritis

15 (78.9)

21 (77.8)

0.417

 Osteomyelitis

3 (15.8)

4 (14.8)

 Multifocal abscesses

1 (5.3)

0 (0)

 Spondilodiscitis

0 (0)

2 (7.4)

Site of the infection

 Single

17 (89.5)

24 (88.9)

0.448

 Multiple

2 (10.5)

3 (11.1)

Location of limb infection

 Upper

1 (5.3)

3 (11.1)

0.632

 Lower

18 (94.7)

24 (88.9)

Limb affected

 Hip

6 (31.6)

10 (37.0)

0.475

 Femur

2 (10.5)

3 (11.1)

0.667

 Knee

7 (36.8)

14 (51.9)

0.241

Diagnosis on admission

 Magnetic resonance imaging

1 (5.3)

2 (7.4)

0.632

 Pathologic ultrasound

8 (42.1)

14 (51.9)

0.191

  Joint effusion

5 (31.3)

5 (26.3)

0.519

  Soft tissue infiltration

5 (31.3)

11 (57.9)

0.108

  soft tissue abscesses

1 (6.3)

6 (31.6)

0.062

 Abnormal plain radiograph

3 (15.8)

1 (3.7)

0.208

 Purulent discharge

6 (31.6)

3 (11.1)

0.085