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Table 2
Subsequent deliberate self-harm (DSH) presentation in emergency department records, by method of injury and E code at index episode, population aged 12 or older, Ontario, April 1, 2001 to March 31, 2002

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Standard table symbols

Method of injury Index episode Subsequent DSH presentation
Number Rate* Relative risk 95% confidence interval
E code Number from to
Total DSH 12,394 1,421 24,618.8 3.70 3.27 4.24
UD 7,965 275 6,644.8 1.00 ... ...
Cut/Pierce DSH 1,886 339 40,239.8 2.04 1.42 3.46
UD 233 23 19,773.0 1.00 ... ...
Poisoning (medicinal) DSH 9,190 976 22,767.8 1.83 1.59 2.14
UD 3,388 207 12,433.6 1.00 ... ...
Poisoning (non-medicinal) DSH 397 34 17,454.7 2.90 1.72 5.28
UD 684 21 6,020.5 1.00 ... ...
Other DSH 921 72 16,071.4 13.45 8.84 22.96
UD 3,660 24 1,194.9 1.00 ... ...
* per 100,000 person-years
Note: UD refers to “undetermined” method of injury.
Source: National Ambulatory Care Reporting System, April 1, 2001 to March 31, 2002.
Table source: Statistics Canada, 2009, "Identifying deliberate self-harm in emergency department data", Health Reports, Vol. 20, No. 2, catalogue number 82-003-X.