Skip to main content

Table 5 Sub-group analysis of age and selected variables

From: Psychoactive substances and previous hospital admissions, triage and length of stay in rural injuries: a prospective observational study

 

Age group

Bivariable panel (chi2), n (%)

Multivariable panel, n (%)

Detected

Not detected

Total

p value

Missing

Odds ratio

Confidence interval

p value

Missing

Length of hospital stay more than 12 h

Alcohol*

18–34

29 (60.4)

94 (74)

123 (70.3)

0.079

19 (2.8)

0.404

0.18–0.91

0.028

28 (16)

35–64

56 (83.6)

170 (89.5)

226 (87.9)

0.203

0.702

0.28–1.76

0.450

51 (19.7)

 ≥ 65

36 (100)

188 (95.4)

224 (96.1)

0.191

N/A

  

43 (18.4)

s-ethanol**

18–34

16 (50)

107 (74.8)

123 (70.3)

0.005

16 (2.3)

0.292

0.12–0.71

0.007

28 (16)

35–64

28 (82.4)

200 (88.9)

228 (88)

0.274

0.597

0.20–1.77

0.351

50 (19.3)

 ≥ 65

22 (100)

203 (95.8)

225 (96.2)

0.324

N/A

  

42 (17.9)

AUDIT-C ≥ 5

18–34

53 (72.6)

70 (68.6)

123 (70.3)

0.570

1.174

0.53–2.61

0.694

28 (16)

35–64

77 (85.6)

151 (89.3)

228 (88)

0.370

0.843

0.35–2.06

0.708

50 (19.3)

 ≥ 65

29 (100)

196 (95.6)

225 (96.2)

0.250

N/A

  

42 (17.9)

At least one previous admittance to the health trust

Alcohol*

18–34

35 (72.9)

67 (52.8)

102 (58.3)

0.016

21 (3.1)

2.482

1.19–5.16

0.015

0

35–64

54 (80.6)

125 (65.8)

179 (69.6)

0.023

2.282

1.14–4.57

0.020

2 (0.8)

 ≥ 65

31 (86.1)

166 (85.1)

197 (85.3)

0.878

1.532

0.53–4.41

0.429

3 (1.3)

s-ethanol**

18–34

23 (71.9)

79 (55.2)

102 (58.3)

0.085

18 (2.6)

2.128

0.92–4.95

0.079

0

35–64

25 (73.5)

156 (69.3)

181 (69.9)

0.619

1.351

0.59–3.12

0.480

0

 ≥ 65

19 (86.4)

179 (85.2)

198 (85.3)

0.887

1.622

0.44–6.03

0.470

2 (0.9)

AUDIT-C ≥ 5

18–34

43 (58.9)

59 (57.8)

102 (58.3)

0.888

1.110

0.59–2.08

0.744

0

35–64

66 (73.3)

115 (68)

181 (69.9)

0.377

1.753

0.96–3.21

0.069

0

 ≥ 65

26 (89.7)

172 (84.7)

198 (85.3)

0.483

2.453

0.67–8.99

0.176

2 (0.9)

  1. *Ethanol in blood or self-reported use of alcohol during the 6 h prior to the incident
  2. **Serum-ethanol, ethanol identified in blood sample on arrival
  3. Corrected for sex and age when analyzing number of previous admittances, supplemented with MAIS when analyzing length of stay