Table 2 Volume estimation and the results of Wilcoxon signed rank test.
Volume estimate | Mean(SD), mL | Median(range), mL | Interquartile range(Q1–Q3), mL | Normal distribution assumption | Wilcoxon signed rank test for H: diff = 0, p value |
|---|---|---|---|---|---|
O1 | 10.24(9.29) | 8.19(0.82–56.35) | 7.26(4.52–11.78) | Rejected | n/a |
O2 | 1.6988(2.644) | 0.40(0.22–12.18) | 1.07(0.35–1.42) | Rejected | n/a |
A1 | 10.36(10.12) | 7.80(0.68–67.37) | 7.74(4.51–12.25) | Rejected | n/a |
A2 | 2.21(3.08) | 0.88(0.17–20.57) | 1.75(0.56–2.31) | Rejected | n/a |
S1 | 10.28(9.38) | 8.37(0.88–57.15) | 7.29(4.67–11.96) | Rejected | n/a |
S2 | 1.6989(2.636) | 0.41(0.22–12.06) | 1.06(0.36–1.42) | Rejected | n/a |
Diff (O1 − A1) | −0.12(1.54) | 0.05[(−11.02)−2.22] | 0.64[(−0.22)−0.42] | Rejected | 0.1810 |
Diff (O2 − A2) | −0.51(1.40) | −0.32[(−10.34)−2.52] | 0.71[(−0.69)−0.02] | Rejected | <0.0001 |
Diff (O1 − S1) | −0.04(0.29) | −0.005[(−1.36)−0.61] | 0.18[(−0.10)−0.08] | Rejected | 0.4964 |
Diff (O2 − S2) | −0.0002(0.0456) | 0[(−0.20)−0.21] | 0.02[(−0.01)−0.01] | Rejected | 0.4062 |
Diff (O12 − S12) | −0.43(2.9985) | −0.10[(−1.38)–0.59] | 0.2[(−0.11)−0.09] | Rejected | 0.5560 |
