Skip to main content

Table 1 Factors associated with repeated acute poisoning by substances of abuse within 1 week—logistic regression analysis

From: Factors associated with rapidly repeated acute poisoning by substances of abuse: a prospective observational cohort study

 

Cases total

Re-presentation within a week

Crude

Adjusted

n

n (%)

Odds ratio

95% CI

p-value

Odds ratio

95% CI

p-value

Gender

 Females

640

47 (7)

1

  

1

  

 Males

1312

122 (9)

1.3

0.91–1.8

0.15

0.97

0.67–1.4

0.89

Agea

1.03

1.02–1.04

< 0.001

1.03

1.01–1.04

0.001

Toxic agent at index episode

 Ethanol

1188

95 (8)

1

  

1

  

 Opioids

437

50 (11)

1.5

1.0–2.1

0.032

1.5

1.0–2.3

0.028

 Stimulants

90

6 (7)

0.82

0.35–1.9

0.65

0.97

0.40–2.3

0.94

 GHB

45

4 (9)

1.1

0.39–3.2

0.83

1.4

0.50–4.2

0.50

 Benzodiazepines

129

10 (8)

0.97

0.49–1.9

0.92

1.4

0.69–3.0

0.34

 Other

63

4 (6)

0.78

0.28–2.2

0.64

1.0

0.36–3.0

0.94

Suicidal intention at index episodeb

73

3 (4)

0.44

0.14–1.4

0.17

0.44

0.13–1.6

0.21

Severe mental illnessb

157

18 (11)

1.4

0.84–2.4

0.19

1.6

0.93–2.7

0.091

Homelessnessb

153

29 (19)

2.8

1.8–4.3

< 0.001

2.0

1.3–3.2

0.003

Self-dischargedb

324

46 (14)

2.0

1.4–2.9

< 0.001

1.7

1.2–2.4

0.007

Referred specialist servicesb

235

12 (5)

0.54

0.29–0.98

0.042

0.64

0.34–1.2

0.16

Total

1952

169 (9)

      
  1. Odds ratios adjusted for the variables in the table. Adjusted odds ratios for significant associations are shown in Italic types
  2. CI confidence interval, GHB gamma-hydroxybutyrate
  3. aContinuous variable
  4. bReference groups were no suicidal intention at index episode, no history of severe mental illness, not being homeless, regular discharge, no referral to outpatient psychiatric and/or addiction specialist health services