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Table 1 General characteristics of the study population

From: Comparison of mortality prediction models for road traffic accidents: an ensemble technique for imbalanced data

Items

Frequency (%)

Sex

 Male

32,936 (59.6)

 Female

22,343 (40.4)

Severity of injury - Mild

 Superficial injury

9037 (16.3)

 Open wound

1825 (3.3)

 Sprain/dislocation

24,049 (43.5)

Severity of injury - Severe

 Fracture

11,035 (20.0)

 Nerve injury

289 (0.5)

 Blood vessel injury

87 (0.2)

 Internal organ injury

8147 (14.7)

 Muscle injury

457 (0.8)

 Crush injury

119 (0.2)

 Amputation

34 (0.1)

Operation

 Yes

11,788 (21.3)

 No

43,491 (78.7)

Outcome

 Survived

54,609 (98.8)

 Died

670 (1.2)

Primary site of injury

 Head

11,050 (20.0)

 Neck

10,523 (19.0)

 Spine

7 (0.0)

 Chest

4625 (8.4)

 Abdomen/Back

11,129 (20.1)

 Shoulder/Upper Arm

4125 (7.5)

 Forearm

1660 (3.0)

 Wrist/Hand

1669 (3.0)

 Hip/Thigh

1580 (2.9)

 Knee/Lower Leg

5756 (10.4)

 Ankle/Foot

2136 (3.9)

 Multiple Sites

933 (1.7)

 Unknown site

86 (0.1)

Role in accident

 Driver

22,358 (40.4)

 Pedestrian

9411 (17.0)

 Public transit Passenger

8818 (16.0)

 Car passenger

5795 (10.5)

 Person injured while boarding or exiting vehicle

5699 (10.3)