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Table 3 Criminal offending between the Total ID group with the community group

From: Crime and victimisation in people with intellectual disability: a case linkage study

Offending Type

Total ID (N = 2600)

Community (N = 4830)

OR (95 % CI)

RR (95 % CI)

p

d

Any History

224 (8.6 %)

429 (8.9 %)

0.96 (0.82–1.14)

0.97 (0.83–1.13)

>0.05

−0.02 (−0.11–0.07)

Violent

192 (7.4 %)

119 (2.4 %)

3.16 (2.50–3.99)

3.00 (2.40–3.75)

<.0001

0.63 (0.51–0.76)

Sexual

76 (3.0 %)

18 (0.3 %)

8.05 (4.80–13.49)

7.87 (4.71–13.13)

<.0001

1.15 (0.86–1.43)

Non Violent Non Sexual

141 (5.4 %)

356 (7.4 %)

0.72 (0.59–0.88)

0.74 (0.61–0.89)

<.0001

−0.18 (−0.29–0.07)

  1. Effect Sizes according to Cohen [37] *small **medium ***large