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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Sociodemographic characteristics and differences between groups

From: Analysis of predictors of mortality after surgical and non-surgical management in proximal humerus fractures

 

Total (n  =  638)

Alive (n  =  582)

Deceased (n  =  56)

p valuea

Gender

 Female

495 (77.6%)

446 (90.1%)

49 (9.9%)

0.063

 Male

143 (22.4%)

136 (95.1%)

7 (4.9%)

Age (years)

 18–70

300 (46.7%)

291 (97%)

9 (3%)

0.0001

 > 70

338 (53.3%)

291 (86.1%)

47 (13.9%)

Laterality

 Right

331 (51.9%)

303 (91.8%)

28 (8.2%)

0.77

 Left

307 (48.1%)

279 (90.9%)

28 (9.1%)

Type of trauma

 Low-energy

614 (96.2%)

560 (91.2%)

54 (8.8%)

0.987

 High-energy

23 (3.6%)

21 (91.3%)

2 (8.7%)

Season

 Autumn–Winter

313 (49.1%)

281 (89.8%)

32 (10.2%)

0.205

 Spring–Summer

325 (50.9%)

301 (92.6%)

24 (7.4%)

Neer classification

 Non-displaced and 2-parts

361 (56.6%)

322 (89.2%)

39 (10.8%)

0.03

 3- or 4-part and fracture-dislocation

277 (43.4%)

260 (93.9%)

17 (6.1%)

AO-OTA classification

 Type A

314 (49.2%)

282 (89.8%)

32 (10.2%)

0.453

 Type B

275 (43.1%)

255 (92.7%)

20 (7.3%)

 Type C

49 (7.7%)

45 (91.8%)

4 (8.2%)

Treatment

 Conservative

513 (80.4%)

464 (90.4%)

49 (9.6%)

0.187

 Surgical

125 (19.6%)

118 (94.4%)

7 (5.6%)

  Locking plate

47 (37.6%)

46 (97.9%)

1 (2.1%)

 

  Endomedullary nail

16 (12.8%)

14 (87.5%)

2 (12.5%)

  Kirschner needle

9 (7.2%)

9 (100%)

0

  Reversed total arthroplasty

36 (28.8%)

33 (91.7%)

3 (8.3%)

  Others

17 (13.6%)

16 (94.1%)

1 (5.9%)

Comorbidities

 Cardiovascular

329 (51.6%)

286 (86.9%)

43 (13.1%)

0.0001

 Neurological-psychiatric

187 (29.4%)

156 (83.4%)

31 (16.6%)

0.0001

 Smoking-alcoholic abuse

46 (7.2%)

41 (89.1%)

5 (10.9%)

0.603

 Obesity

37 (5.8%)

33 (89.2%)

4 (10.8%)

0.652

 Diabetes

109 (17.1%)

95 (87.2%)

14 (12.8%)

0.101

 Osteoporosis

63 (9.9%)

60 (95.2%)

3 (4.8%)

0.235

 Rheumatologic

44 (6.9%)

42 (95.5%)

2 (4.5%)

0.317

 Endocrinologic

90 (14.1%)

79 (87.8%)

11 (12.2%)

0.213

Charlson comorbidity index

 CCI 0–5

524 (82.1%)

500 (95.4%)

24 (4.6%)

0.0001

 CCI > 5

114 (17.9%)

82 (71.9%)

32 (28.1%)

 Mean

3.71 ± 3.85

3.49 ± 3.9

6 ± 2.31

0.0001b

  1. Bold values with statistically significant differences (p < 0.05)
  2. ap value for Chi-square test for comparison of proportions between groups
  3. bp value for t Student test for comparison of means between groups