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Table 2 Atypical overdose presentations at a supervised injection site, Vancouver, Canada (2016–17)

From: Rigidity, dyskinesia and other atypical overdose presentations observed at a supervised injection site, Vancouver, Canada

Atypical overdose presentation

Number of cases

Percentage of total atypical overdose presentations

Percentage of total overdose presentations

Muscle rigidity

240

48.30%

15.2%

Dyskinesia

150

30.2%

9.5%

Low or irregular heart rate

69

13.9%

4.4%

Confusion or delirium

24

4.80%

1.5%

Anisocoria

2

0.40%

0.1%

Other

12

2.4%

0.8%