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Table 4 Patient characteristics

From: Evaluation of a targeted, theory-informed implementation intervention designed to increase uptake of emergency management recommendations regarding adult patients with mild traumatic brain injury: results of the NET cluster randomised trial

Patient characteristics

NET control1

NET intervention2

NET-Plus control 3

NET-Plus intervention 4

N (%5)/mean (SD)

N (%5)/mean (SD)

N (%5)/mean (SD)

N (%5)/mean (SD)

Age

50.9 (23.65)

54.2 (24.93)

53.5 (20.59)

55.2 (21.17)

Sex (male)

476 (45%)

390 (44%)

105 (48%)

51 (41%)

After hours presentation

748 (71%)

653 (73%)

149 (68%)

90 (72%)

Initial GCS 15

961 (92%)

768 (86%)

213 (98%)

115 (92%)

Initial GCS 14

89 (8%)

125 (14%)

5 (2%)

10 (8%)

Mechanism of injury

 Incidental fall

492 (47%)

481 (54%)

113 (52%)

65 (52%)

 Road traffic

58 (6%)

51 (6%)

11 (5%)

10 (8%)

 Violence / assault

250 (24%)

163 (18%)

36 (17%)

15 (12%)

 Sport

62 (6%)

55 (6%)

17 (8%)

11 (9%)

 Others

179 (17%)

137 (15%)

41 (19%)

24 (19%)

 Unclear/not reported

9 (0.9%)

6 (0.7%)

0 (0.0%)

0 (0.0%)

Presence other injuries (outside head)

508 (48%)

516 (58%)

105 (48%)

63 (50%)

Alcohol/illicit drug involvement

237 (23%)

206 (23%)

28 (13%)

15 (12%)

Pre-existing coagulopathy or anti-coagulant or anti-platelet drugs

175 (17%)

165 (18%)

37 (17%)

17 (14%)

Known previous neurological condition

202 (19%)

191 (21%)

26 (12%)

13 (10%)

Known neurosurgery

14 (1.3%)

18 (2.0%)

2 (0.9%)

3 (2.4%)

Scalp laceration

532 (51%)

464 (52%)

130 (60%)

67 (54%)

Scalp haematoma

400 (38%)

372 (42%)

79 (36%)

42 (34%)

Clinical suspicion of skull fracture

51 (4.9%)

57 (6%)

8 (3.7%)

8 (6%)

Loss of consciousness

186 (18%)

155 (17%)

50 (23%)

18 (14%)

Vomiting

56 (5%)

49 (5%)

12 (6%)

4 (3.2%)

Headache

259 (25%)

231 (26%)

44 (20%)

37 (30%)

Post traumatic seizure

3 (0.3%)

6 (0.7%)

0 (0.0%)

2 (1.6%)

Focal neurological deficit

21 (2.0%)

13 (1.5%)

5 (2.3%)

3 (2.4%)

  1. 1Number of patients = 1050; numbers of clusters = 17
  2. 2Number of patients = 893; number of clusters = 14
  3. 3Number of patients = 218; number of clusters = 14
  4. 4Number of patients = 125; number of clusters = 10
  5. 5Percentages of less than 5% are given to one decimal place