Ostermann (2009) found that 65 percent of the total sample were rearrested, 45 percent were reconvicted, and 32 percent were reincarcerated. Chi-square tests revealed significant differences for all measures of recidivism among all four groups.
Fifty-eight percent of parolees released to a Day Reporting Center (DRC) were rearrested following release from prison, compared with 59 percent of Halfway Back (HWB) program participants, 62 percent of parolees who did not participate in a community program, and 79 percent of parolees who maxed out their prison sentence and received no community supervision.
Survival tests indicated that max-outs were the quickest to be rearrested; they were arrested for a new crime on average 315.21 days after their 2004 release. Parolees who received no community programming were rearrested on average 347.23 days after release. DRC participants lasted longer, with an average time to rearrest of 360.53 days, and HWB participants lasted considerably longer, with an average of 455.81 days to rearrest.
The multivariate analyses, which controlled for demographics and criminal history, revealed that parolees who did not participate in community programs were about 58 percent less likely to reoffend compared to the max-out group. Those paroled to DRCs were 68 percent less likely to be rearrested than the max-out group, and HWB program participants were 64 percent less likely to be rearrested than the max-out group.
The final analysis using a Cox-proportional hazards test revealed that only the HWB program obtained statistically significant odds ratios, showing that those participants were roughly 38 percent more likely to stay arrest-free than the max-out group, when controlling for all predictor variables.
Participants in DRCs had the lowest reconviction rates. Thirty-two percent of DRC participants were reconvicted for one of their charges, compared with 59 percent of HWB participants, 62 percent of parolees who did not participate in a community program, and 61 percent of parolees who maxed out their sentence.
Multivariate analysis showed a statistically significant difference between the max-out group and the parolees who participated in community programs. The DRC participants were 73 percent less likely than the max-out group to be reconvicted, and the HWB program participants were 68 percent less likely to be reconvicted than the max-out group.
Although DRC participants did not have the lowest reincarceration rates, they did have significantly lower rates than parolees who either did not receive community programming or maxed out their prison sentence. HWB participants had the lowest rate of reincarceration (17 percent), compared with 20 percent of DRC participants, 39 percent of parolees with no community programming, and 46 percent of max-outs.
Multivariate analysis of the reincarceration data showed similar significant results to the reconviction outcomes. The DRC participants were about 73 percent less likely than the max-out group to be reincarcerated. The HWB program participants were less likely than the max-out group to be reincarcerated by roughly 76 percent.