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Table 3 Patient and disease characteristics of subgroups with and without hyperbaric oxygen therapy (HBOT)

From: Outcome of necrotizing fasciitis and Fournier's gangrene with and without hyperbaric oxygen therapy: a retrospective analysis over 10 years

Characteristic

HBOT

No, not indicated

Yes

No, ineligible

Pa

n (%)

n (%)

n (%)

Total (n = 192)

98 (51.0)

83 (43.2)

11 (5.7)

 

Sex

 Male

69 (70.4)

48 (57.8)

10 (90.9)

0.041

 Female

29 (29.6)

35 (42.2)

1 (9.1)

 

Age (years)

 Mean (SD)

64.3 (14.1)

58.8 (15.3)

52.3 (16.8)

0.008

  < 60

35 (35.7)

44 (53.0)

8 (72.7)

0.011

  ≥ 60

63 (64.3)

39 (47.0)

3 (27.3)

 

Diagnosis

 Necrotizing fasciitis

78 (79.6)

64 (77.1)

11 (100.0)

0.207

 Fournier's gangrene

20 (20.4)

19 (22.9)

0 (0.0)

 

Localization

 Lower extremity

76 (77.6)

53 (63.9)

8 (72.7)

0.127

 Genital/inguinal/perineal

29 (29.6)

40 (48.2)

5 (45.5)

0.033

 Trunk

9 (9.2)

26 (31.3)

5 (45.5)

 < 0.001

 Retroperitonealb

1 (1.0)

3 (3.6)

0 (0.0)

0.421

 Upper extremityb

2 (2.0)

8 (9.6)

0 (0.0)

0.052

 Head/neck

0 (0.0)

1 (1.2)

0 (0.0)

n.d

 Multiple localizations

16 (16.3)

35 (42.2)

5 (45.5)

 < 0.001

Initial signs and symptoms

 Sepsis at admission

49 (50.0)

74 (89.2)

9 (81.8)

 < 0.001

 Positive blood culturec

32 (46.4)

30 (40.0)

7 (70.0)

0.189

 Leucocyte count, mean (SD)

16.7 (7.7)

19.8 (8.2)

21.8 (11.4)

0.017

 CRP, mean (SD)

235.6 (142.0)

284.2 (132.0)

284.5 (126.2)

0.049

 LRINECd, mean (SD)

6.6 (2.9)

7.6 (2.5)

8.3 (2.8)

0.015

 Modified LRINECe, mean (SD)

9.4 (3.4)

11.1 (2.8)

11.0 (4.8)

0.011

Comorbidities

 Number, mean (SD)

3.0 (1.5)

2.5 (1.7)

2.6 (1.4)

0.066

  < 3

39 (39.8)

49 (59.0)

7 (63.6)

0.022

  ≥ 3

59 (60.2)

34 (41.0)

4 (36.4)

 

 Diabetes mellitus

51 (52.0)

35 (42.2)

7 (63.6)

0.243

 Vascular diseasesf

36 (36.7)

19 (22.9)

3 (27.3)

0.127

 Renal diseases

28 (28.6)

20 (24.1)

4 (36.4)

0.617

 Cardiac diseases

44 (44.9)

28 (33.7)

3 (27.3)

0.219

 Liver diseases

18 (18.4)

11 (13.3)

3 (27.3)

0.408

 Arterial hypertension

67 (68.4)

45 (54.2)

3 (27.3)

0.012

 History of stroke

7 (7.1)

8 (9.6)

0 (0.0)

0.502

 Alcohol abuse

18 (18.4)

10 (12.0)

1 (9.1)

0.421

 Substance abuse (i.v.)

3 (3.1)

6 (7.2)

1 (9.1)

0.380

 Psychiatric diseases

6 (6.1)

11 (13.3)

0 (0.0)

0.138

 Malignant diseases

16 (16.3)

10 (12.0)

3 (27.3)

0.370

 Immunosuppression

17 (17.3)

10 (12.0)

1 (9.1)

0.523

  1. For calculation of percentages, the number of patients in each column (i.e., HBOT no, not indicated, HBOT yes and HBOT no, ineligible) was set to 100%
  2. CRP C-reactive protein, i.v. intravenous, SD standard deviation
  3. aCharacteristics of the three subgroups were compared with Chi-squared test for categorical variables and with Kruskal-Wallis test for continuous variables. Significant differences are highlighted in bold
  4. bExact Fisher-t-test
  5. cBlood cultures were taken before initiation of antibiotics
  6. dLRINEC: Laboratory Risk Indicator for NECrotizing fasciitis
  7. eThe modified LRINEC could be calculated in 131 participants (n = 61: missing data)
  8. fVascular diseases comprised peripheral arterial occlusive disease, chronic venous insufficiency, deep vein thrombosis and pulmonary embolism