Skip to main content

Table 2 The clinical presentations in GBS and other bacterial septic arthritis group

From: Group B streptococcus is the most common pathogen for septic arthritis with unique clinical characteristics: data from 12 years retrospective cohort study

Variable

All (231)

GBS group (87)

Other bacterial group (144)

p-value

Symptom duration: Median (IQR25-IQR75)

5.0 (2.0–10.0)

5.0 (2.0–10.0)

4.0 (2.0–7.0)

0.655

Initial temperature: Median (IQR25-IQR75)

37.8 (37.0–38.4)

37.9 (37.2–38.5)

37.8 (37.0–38.3)

0.301

Number of joint involvement: Median (IQR25-IQR75)

1.0 (1.0–3.0)

3.0 (1.0–5.0)

1.0 (1.0–2.0)

< 0.001

Pattern of joint involvement (n, %)

 Monoarthritis

122, 52.8%

24, 27.6%

98, 68.1%

< 0.001

 Oligoarthritis

58, 25.1%

27, 31.0%

31, 21.5%

0.106

 Polyarthritis

51, 22.1%

36, 41.4%

15, 10.4%

< 0.001

 Upper joint involvement

113, 48.9%

62, 71.3%

51, 35.4%

< 0.001

 Axial joint involvement

61, 26.4%

33, 37.9%

28, 19.4%

0.002

 Small joint involvement

22, 9.5%

9, 10.3%

13, 9.0%

0.741

Site of joint involvement (n, %)

 Knee

146, 63.2%

56, 64.4%

90, 62.5%

0.775

 Ankle

59, 25.5%

30, 34.5%

29, 20.1%

0.015

 Shoulder

58, 25.1%

29, 33.3%

29, 20.1%

0.025

 Wrist

41, 17.7%

27, 31.0%

14, 9.7%

< 0.001

 Sternoclavicular

28, 12.1%

19, 21.8

9, 6.3%

< 0.001

 Elbow

22, 9.5%

15, 17.2%

7, 4.9%

0.002

 Spine

17, 7.4%

12, 13.8%

5, 3.5%

0.004

Site of joint involvement (n, %)

 MCP

13, 5.6%

12, 13.8%

1, 0.7%

< 0.001

 PIP

14, 6.1%

12, 13.8%

2, 1.4%

< 0.001

 Hip

25, 10.8%

11, 12.6%

14, 9.7%

0.489

 AC

13, 5.6%

8, 9.2%

5, 3.5%

0.081

 MTP

16, 6.9%

8, 9.2%

8, 5.6%

0.291

 Interphalangeal of toe

4, 1.7%

4, 4.6%

0, 0%

0.019

 Sacroiliac

5, 2.2%

2, 2.3%

3, 2.1%

0.624

Extra articular involvement (n, %)

 Tenosynovitis

37, 16.0%

34, 39.1%

3, 2.08%

< 0.001

 CNS

13, 5.7%

9, 10.3%

4, 2.8%

0.035

 Skin involvement

30, 13.0%

6, 6.9%

24, 16.7%

0.032

 Tendon rupture

5, 2.2%

4, 4.6%

1, 0.7%

0.068

 Ocular involvement

3, 1.3%

3, 3.4%

0, 0%

0.052

 Cardiac involvement

6, 2.6%

1, 1.1%

5, 3.5%

0.414

Concomitant infection (n, %)

57, 24.7%

4, 4.6%

53, 36.8%

< 0.001

  1. p < 0.05 defined statistical significance, IQR: Interquartile range, symptom duration: Duration from the onset of joint symptoms to the hospital admission, IQR Interquartile range, SC Sternoclavicular, MCP Metacarpophalangeal, PIP Proximal interphalangeal, AC Acromioclavicular, MTP Metatarsophalangeal, CNS Central nervous system, GBS Streptococcus group B
  2. Upper joint included sternoclavicular joints, acromioclavicular joints, shoulder joints, elbow joints, wrist joints, metacarpophalangeal joints and proximal interphalangeal joints
  3. Axial joint included sternoclavicular joints, acromioclavicular joints, shoulder joints, sacroiliac joint, hip joints and spine
  4. Small joint included metacarpophalangeal joints, proximal interphalangeal joints, metatarsophalangeal joints,wrist and interphalangeal joints of toes