Table 4: Significant differences in ICU admission frequency by days pre-op.

Total Cohort THA Cohort
Days Pre-Op ICU Admission Frequency P-Value Days Pre-Op ICU Admission Frequency P-Value
≤4 vs. ≥5* 0.00 vs. 0.13 <0.01 ≤4 vs. ≥5* 0.00 vs. 0.09 <0.01
≤10 vs. ≥11 0.04 vs. 0.15 0.01 ≤10 vs. ≥11 0.02 vs. 0.11 0.03
≤11 vs. ≥12 0.06 vs. 0.15 0.04

*All procedures with less than 5 pre-op days were statistically significant in comparison, but not shown.