P values for overall group comparison based on χ2 tests.
The Kruskal Wallis test was used to test for overall group differences and the Steel-Dwass test was used to test for between-group differences.
Continuous variables were analyzed using Mann-Whitney U test, Friedman test for overall group significance or the independent sample t-test, depending on the distribution of data.
No differences were noted with respect to veteran status.> -wrap-foot> arefers refers to past twelve-month period ** P < .01, ANOVA for overall group differences *** P < .001, chi-square or ANOVA for overall group differences Over half of those discharged from prison in the past year had been in residential substance treatment programs during the previous 6 months (Table 2).
Likewise explicit knowledge of threat, assessed by post hoc estimates of threat level, did not differ between patients and controls overall which means that this variable cannot account for overall group differences.
Hence, in the stressful situations described above, school dynamics may be affected, and diverge from optimal, with potential deleterious consequences for overall group performance and cohesion [e.g. increased shuffling rate among group members (Domenici et al. 2000, 2002)].
*p values for overall group differences; †NA = non-applicable, the follow-up did not reach the time point for any patient of the group; ††within 3 months of admission; ‡on admission; §data available for 149 episodes; §Sdata available for 217 episodes; data available for 205 episodes; data available for 218 episodes P-values less than 0.05 were considered as statistically significant.
Magnetic navigation system was equally effective as MAN in acute success rate for the overall groups (Table 2 ).
There were no differences in procedure times and recurrence rates for the overall groups (168 ± 67 vs. 159 ± 75 min, P = ns; 14 vs. 11%, P = ns; respectively).
The per patient cost differential for MIS compared to nonoperative care was similar for the overall group ($3,358) and for patients without lumbar spinal fusion ($1,033).
