Follow-up time Group A (n = 40) Group A (n = 40) Group A (n = 40) Group A (n = 40) Group B (n = 40) Group B (n = 40) Group B (n = 40) Group B (n = 40) X2 P
dilation SA MA GA dilation SA MA GA CALs CALs CALs
7 days (n = 80)
5/40
8/40
2/40
0/40
6/40
9/40
3/40
0/40
0.464
0.650
0.650
1 month (n = 79)
2/39
5/39
1/39
0/39
2/40
4 /40
3/40
1/40
1.939
0.202
0.202
3 months (n = 78)
3/39
0/39
1/39
0/39
0/39
0/39
2/39
1/39
0.157
1.000
1.000
6 months (n = 71)
2/35
0/35
0/35
0/35
0/36
2/36
1/36
1/36
0.668
0.674
0.674
12months (n = 53) 0/28 0/28 0/28 0/28 0/25 2/25 1/25 1/25 4.846 0.043 0.043
24months (n = 33) 0/18 0/18 0/18 0/18 0/14 2/15 2/15 0/15 5.462 0.033 0.033