Table 2 Clinical outcomes of the two groups

Combined

6 [5.5, 7]

4 [3, 5]

3 [1.5, 3]

2 [2, 3]

2 [1.5, 2]

62.22 [53.33, 68.89]

24.44 [17.78, 28.89]

17.78 [15.56, 20.00]

15.56 [13.33, 17.78]

Stand-alone

6 [5.5, 7]

3 [3, 4]

3 [2, 4]

2 [2, 3]

2 [2, 3]

57.78 [53.33, 64.44]

26.67 [18.89, 38.89]

20.00 [16.67, 22.22]

15.56 [13.33, 21.11]

Z value

−0.229

−2.528

−2.075

−1.657

−1.823

−0.603

−1.348

−1.134

−0.960

P value

0.826

0.012

0.038

0.100

0.067

0.551

0.180

0.260

0.341