Table 2.
Demographics and Risk Factors for the Comparison and Treatment Groups of Multiple Offenders in the Florida Ignition Interlock Program (2008 to 2012)
| Group | |||
|---|---|---|---|
| Comparison (n = 806) percent (n) | Treatment (n = 640) percent (n) | ||
| Age category | Unknown | 5.5% (44) | 8.3% (53) |
| <25 | 4.2% (34) | 3.0% (19) | |
| 25 to 34 | 21.3% (172) | 21.4% (309) | |
| 35 to 44 | 28.8% (232) | 27.2% (406) | |
| 45 to 54 | 30.1% (243) | 31.6% (445) | |
| 55+ | 10.0% (81) | 8.6% (136) | |
| Sex | Male | 82.1% (662) | 78.1% (500) |
| Female | 17.9% (144) | 21.9% (140) | |
| Race/ethnicity | White | 74.7% (602) | 76.4% (489) |
| Black | 7.8% (63) | 8.9% (57) | |
| Hispanic | 9.2% (74) | 5.6% (36) | |
| Other/unknown | 8.3% (67) | 9.1% (58) | |
| Risk factors | Interlock sentence length (square root) | 3.83 | 3.95 |
| Post-deinstall exposure (number of months) | 28.33 | 31.08 | |
| Composite risk factor scorea | 2.27 | 2.34 | |
| Lockouts on interlock (log transform) | 2.16 | 2.38 | |
| Max BAC registered on interlock | 0.111 | 0.104 | |
| Proportion with 3+ prior offenses | 57.9% | 45.3% | |
BAC, blood alcohol concentration.
a
Composite score from both Prior Record and Interlock Record principal analysis components in Table 1.