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Table 1 Injury characteristics and association with positive alcohol use prior to arriving at the ED

From: The impact of alcohol among injury patients in Moshi, Tanzania: a nested case-crossover study

 

Total (N = 516)

BAC Positive (N = 156)

BAC Negative (N = 360)

P Value

AOR

CI 95%

P value

Sociodemographics

 Age (years), Mean (SD)

34.4 (13.3)

35.2 (11.2)

33.9 (14.1)

0.31

1.01

(1.00–1.03)

0.152

 Male, N (%)

394 (76.4)

135 (86.5)

259 (72.0)

< 0.001 *

2.29

(1.31–4.15)

0.004

 Education (years), Mean (SD)

9.6 (9.5)

10.3 (10.1)

8.7 (7.9)

0.123

0.98

(0.94–1.01)

0.271

 Employed, N (%)

416 (80.6)

141 (90.4)

274 (76.4)

< 0.001 *

0.46

(0.24–0.85)

0.016

Injury characteristics

 Time since injury (hours), Mean (SD)

2.6 (1.4)

2.8 (1.5)

2.5 (1.4)

0.034 *

1.09

(0.94–1.27)

0.244

 KTS, Mean (SD)

14.3 (0.9)

14.2 (0.9)

14.3 (0.9)

0.395

1.03

(0.74–1.44)

0.841

 RTS, Mean (SD)

7.7 (0.5)

7.7 (0.4)

7.7 (0.6)

0.831

1.12

(0.63–2.23)

0.719

 Unintentional Injury

440 (85.3)

122 (78.2)

318 (88.3)

0.003 *

3.33

(0.91–14.0)

0.081

Type of injury

 Fracture

185 (35.8)

61 (39.1)

124 (34.4)

0.311

1.45

(0.89–2.37)

0.138

 Dislocation

80 (15.5)

16 (10.3)

64 (17.7)

0.050 *

0.8

(0.40–1.52)

0.501

 Open Wound

197 (38.2)

79 (50.6)

118 (32.8)

0.030 *

2.04

(1.29–3.26)

0.003

 Bruise

111 (22.5)

28 (17.9)

83 (23.1)

0.195

0.74

(0.43–1.27)

0.282

 Concussion

149 (28.9)

46 (29.5)

103 (28.6)

0.84

1.28

(0.77–2.10)

0.341

 Organ Injury

56 (10.9)

14 (9.0)

42 (11.7)

0.366

0.94

(0.43–1.96)

0.87

Mechanism of Injury

 RTI

375 (72.7)

109 (69.9)

266 (73.9)

0.245

Ref

  

 Violence

88 (17.0)

33 (21.1)

55 (15.3)

 

0.26

(0.05–1.10)

0.08

 Fall/Trip

53 (10.3)

14 (9.0)

39 (10.8)

 

0.67

(0.25–1.69)

0.403

Location of Injury

 Outdoor public place

399 (77.3)

118 (75.6)

281 (78.1)

< 0.001

Ref

  

 Drinking place

17 (3.3)

13 (8.3)

4 (1.1)

 

9.27

(2.38–44.9)

0.003

 Home

45 (8.7)

17 (10.9)

28 (7.8)

 

1.88

(0.72–4.97)

0.2

 Work place

41 (8.0)

4 (2.6)

37 (10.3)

 

0.26

(0.07–0.81)

0.031

 Other

14 (2.7)

4 (2.6)

10 (2.8)

 

1.18

(0.29–4.17)

0.802

  1. p-value is a comparison between BAC positive and BAC negative
  2. VRU Vulnerable road user, RTI Road traffic injury, BAC Breathlizer Alcohol Positive
  3. *Significant at P < 0.05
  4. Italics indicate p < 0.05