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Table 11 Extracted supporting rules for survival prediction (75% – 85% accuracy)

From: A comparative analysis of multi-level computer-assisted decision making systems for traumatic injuries

Rules

Test Acc.

Method

(Cg = 'Yes') and 2.5 ≤ HEAD < 3.5 and EDRTS < 6.07 and 35.65 ≤ AGE < 55.25 Then Alive

10/12(83.3%)

CART

(Cg = 'Yes') and HEAD ≥ 3 and EDRTS ≥ 6.07 and THORAX < 1 Then Alive

33/43 (76.7%)

CART

(Cg = 'No') and (MI = 'No') and AGE < 61.70 and (ARDS = 'Yes') and HEAD < 3 Then Alive

50/59(84.7%)

CART

(Cg = 'No') and (MI = 'No') and ISS = 24 and 61.70 = AGE < 68.90 and HEAD ≤ 3 Then Dead

11/13(84.6%)

CART

AGE < 61.70 and HEAD ≤ 4 and (MI = 'No') Then Alive

625/793(78.8%)

CART

HEAD ≥ 5 and (Cg = 'No') and AGE < 22.85 Then Alive

60/73(82.2%)

CART

HEAD ≥ 5 and (Cg = 'No') and EDRTS < 5.02 and 22.85 ≤ AGE < 28 and ISS ≥ 33 Then Dead

11/13(84.6%)

CART

ISS ≥ 23 and (ID = 'Yes') and 61.70 ≤ AGE < 80.50 and (ARDS = 'No') and (Cg = 'Yes') Then Dead

12/15(80.0%)

CART

ISS ≥ 23 and (ID = 'Yes') and AGE ≥ 80.50 Then Dead

42/51(82.4%)

CART

AGE < 61.70 and (Cg = 'Yes') and HEAD ≤ 3 and ISS < 42 Then Alive

47/56(83.9%)

CART

AGE < 61.70 and (Cg = 'No') and (MI = 'No') Then Alive

559/706 (79.2%)

CART

(MI = 'No') and (Cg = 'Yes') and HEAD ≤ 3 and AGE < 60.40 and ISS < 42 Then Alive

47/56(83.9%)

CART

(MI = 'No') and (Cg = 'No') and ISS ≤ 23 and EDRTS < 6.07 Then Alive

578/728(79.4%)

CART

AGE < 62 and HEAD ≤ 4 and ISS ≤ 25 Then Alive

648/822(78.8%)

CART

HEAD ≥ 5 and (Cg = 'No') and AGE < 22.85 Then Alive

60/73(82.2%)

CART

ISS ≥ 23 and AGE ≥ 80.50 Then Dead

45/55(81.8%)

CART

AGE < 61.70 and HEAD ≤ 4 and (MI = 'No') Then Alive

625/793(78.8%)

CART

AGE < 61.60 and (MI = 'No') and ISS < 42 and (Cg = 'Yes') and HEAD ≤ 3 Then Alive

47/56(83.9%)

CART

AGE < 61.60 and HEAD ≤ 4 and (MI = 'No') and (Cg = 'No') Then Alive

421/503(83.7%)

CART

AGE ≥ 61.60 and ISS ≥ 23 and (Cg = 'Yes') Then Dead

44/54(81.5%)

CART

AGE < 61.70 and HEAD ≤ 4 and (ISS < 27) Then Alive

646/820(78.8%)

CART

HEAD ≥ 5 and (Cg = 'No') and 22.35 ≤ AGE < 25.85 and (MI = 'No') and ISS ≥ 30 Then Dead

10/13(76.9%)

CART

ISS ≥ 23 and 61.70 ≤ AGE < 74.10 and EDRTS < 2.88 Then Dead

21/28(75.0%)

CART

ISS ≥ 23 and AGE ≥ 74.10 Then Dead

92/119(77.3%)

CART

(MI = 'No') and HEAD ≤ 4 and AGE ≤ 62 ISS ≤ 38 Then Alive

508/612(83%)

C4.5

3 < HEAD ≤ 4 and (MI = 'No') and (ID = 'Yes') and (Cg = 'No') and ISS ≤ 59 Then Alive

138/175(78.9%)

C4.5

HEAD > 1 and (MI = 'Yes') and ISS > 22 Then Dead

59/70(84.3%)

C4.5

HEAD > 3 and (MI = 'Yes') Then Dead

49/58(84.5%)

C4.5

(Cg = 'No') and (MI = 'No') and 2 < HEAD ≤ 4 and EDRTS ≤ 2.2 and (ARDS = 'Yes') and ISS ≤ 38 Then Dead

12/15(80%)

C4.5

(MI = 'No') and (ID = 'Yes') and (Cg = 'Yes') and AGE > 61.6 Then Dead

24/32(75%)

C4.5

(ID = 'No') and HEAD ≤ 3 and AGE ≤ 82.6 and ISS ≤ 22 Then Alive

236/305(77.4%)

C4.5

HEAD ≤ 4 and (MI = 'No') and AGE ≤ 60.8 and ISS ≤ 38 Then Alive

504/607(83%)

C4.5

HEAD ≤ 4 and AGE ≤ 78 and EDRTS > 7.55 and ISS ≤ 30 Then Alive

207/263(78.7%)

C4.5

(MI = 'Yes') and ISS > 27 Then Dead

50/60(83.3%)

C4.5

HEAD ≤ 3 and AGE ≤ 78 and 11 < ISS ≤ 27 Then Alive

290/368(78.8%)

C4.5

(Cg = 'No') and HEAD ≤ 3 and AGE ≤ 78 Then Alive

353/459(76.9%)

C4.5

(MI = 'Yes') and EDRTS ≤ 5.39 Then Dead

41/51(80.4%)

C4.5

HEAD > 0 and (MI = 'Yes') and THORAX > 2 and (ID = 'No') Then Dead

50/63(79.4%)

C4.5

(Cg = 'No') and (MI = 'No') and 2 < HEAD ≤ 4 and EDRTS ≤ 1.47 and (ARDS = 'Yes') and ISS ≤ 41 Then Dead

13/17(76.5%)

C4.5

HEAD ≤ 4 and (MI = 'No') and AGE ≤ 62 and ISS ≤ 41 Then Alive

555/678(81.9%)

C4.5

HEAD ≤ 4 and AGE ≤ 79.6 and EDRTS > 7.55 and ISS ≤ 30 Then Alive

214/275(77.8%)

C4.5

(MI = 'No') and HEAD ≤ 4 and AGE ≤ 61.6 and ISS ≤ 34 Then Alive

469/562(83.5%)

C4.5

HEAD ≤ 3 and AGE ≤ 61.6 and ISS ≤ 38 Then Alive

420/503(83.5%)

C4.5

(MI = 'Yes') and (ID = 'Yes') and AGE > 68.5 Then Dead

47/60(78.3%)

C4.5

(ARDS = 'No') and HEAD ≤ 3 and AGE ≤ 61.9 Then Alive

276/326(84.7%)

C4.5

(ID = 'No') and (MI = 'Yes') and EDRTS > 5.39 and ISS ≤ 14 Then Alive

21/25(84%)

C4.5

  1. Though these rules are not reliable enough for practical use, they can contain pattern information which may be of interest to physicians. Cg stands for coagulopathy; MI for myocardial infarction; ARDS for Acute Respiratory Distress Syndrome; EDRTS for Emergency Department Revised Trauma Score; ISS for Injury Severity Score; ID for Insulin-Dependent.