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Table 2 Rate ratios comparing infractions, by type, among people in a rehabilitative diversion unit (RDU), as compared to people in restrictive housing for control purposes (while eligible for an RDU), North Carolina prisons, 2016–2020

From: Evaluation of a prison violence prevention program: impacts on violent and non-violent prison infractions

 

Rate/10,000 person-days

Unadjusted rate ratio (95% CI)

Adjusted rate ratioa (95% CI)

Violent infractionsb

   

RDU

0.6 (0.4, 0.9)

0.6 (0.3, 1.0)

0.6 (0.4, 1.1)

RHCP

1.0 (0.7, 1.5)

Ref

Ref

Alt-violent infractionc

   

RDU

2.6 (2.0, 3.4)

1.1 (0.7, 1.6)

1.3 (0.9, 2.0)

RHCP

2.4 (1.8, 3.2)

Ref

Ref

Drug-related infractiond

   

RDU

1.5 (1.1, 2.0)

2.0 (1.2, 3.2)

2.1 (1.3, 3.4)

RHCP

0.7 (0.5, 1.1)

Ref

Ref

Any infraction

   

RDU

36.3 (32.1, 41.0)

1.3 (1.1, 1.6)

1.6 (1.3, 1.9)

RHCP

27.1 (23.8, 30.8)

Ref

Ref

A-level infractionse

   

RDU

10.0 (8.7, 11.5)

1.3 (1.1, 1.6)

1.5 (1.2, 1.8)

RHCP

7.6 (6.6, 8.8)

Ref

Ref

B-level infractionsf

   

RDU

21.8 (18.9, 25.1)

1.3 (1.0, 1.6)

1.6 (1.3, 1.9)

RHCP

17.0 (14.6, 19.9)

Ref

Ref

C-level infractionsg

   

RDU

4.5 (3.6, 5.6)

1.8 (1.3, 2.6)

2.3 (1.6, 3.2)

RHCP

2.5 (1.9, 3.3)

Ref

Ref

  1. CI Confidence interval, RDU rehabilitative diversion unit, RHCP restrictive housing for control
  2. aAdjusted for age, gang affiliation, IQ, the number of days they had been in restrictive housing up to that point/days incarcerated that incarceration, the number of guilty infractions up to that point/days incarcerated that incarceration, and their mental health grade
  3. bViolent infractions are not an official NC DAC categorization. Violent infractions include assault and rioting
  4. cAlt-violent infractions are not an official NC DAC categorization. Alt-violent infractions are infractions that indicate a potential for violence. These include threatening to harm staff and assault with a low potential for injury
  5. dDrug-related infractions are substance possession or refusing to submit to a drug or breath test
  6. eA-level infractions include gang involvement, possession of a weapon to aid in assault, insurrection, riot, setting a fire, assaulting staff, and substance possession
  7. fB-level infractions include disobeying an order, lock tampering, use of profane language, and threatening to harm staff
  8. gC-level infractions include unauthorized use of phones or mail, possession of contraband not intended for escape or violence, creating an offensive condition, or bartering or loaning money
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Injury Epidemiology

ISSN: 2197-1714