Table 4 Length of stay and numeric rating scale of pain
|  | Whole cohort N = 50 | Control n = 26 | Study n = 24 | χ2 / t | p value |
|---|---|---|---|---|---|
Length of stay (days) | 9.98 ± 3.93 | 9.92 ± 4.10 | 10.04 ± 3.82 | 0.313 | .578 |
NRS | |||||
 1st day | 4.34 ± 1.41 | 4.23 ± 1.45 | 4.46 ± 1.38 | 0.567 | .361 |
 2nd day | 3.26 ± 1.38 | 3.38 ± 1.70 | 3.13 ± 0.95 | 0.660 | .663 |
 5th day | 2.87 ± 1.33 | 3.00 ± 1.48 | 2.73 ± 1.17 | 0.686 | .634 |