Subgroup factors |
Numbers of study |
WMD (95%CI) |
I2 (%) |
P value |
P for
interaction |
Study design |
|
|
|
|
0.344 |
Multi-center |
4 |
0.88 (-15.84, 17.61) |
96.4 |
0.918 |
|
Single-center |
6 |
-9.94 (-24.90, 5.02) |
96.8 |
0.193 |
|
Follow up |
|
|
|
|
0.421 |
<12 |
6 |
-9.32 (-15.35, 6.70) |
96.8 |
0.254 |
|
≥12 |
4 |
-0.14 (-15.74, 15.46) |
96.5 |
0.913 |
|
ICE Sample size |
|
|
|
|
0.588 |
>100 |
5 |
-9.07 (-31,36, 13.22) |
97.9 |
0.425 |
|
≤100 |
5 |
-2.28 (-12.52, 7.95) |
93.5 |
0.786 |
|
Male proportion |
|
|
|
|
0.694 |
<70 |
7 |
-3.21 (-13.70, 7.28) |
95.2 |
0.548 |
|
≥70 |
2 |
-5.75 (-71.88, 42.19) |
99.2 |
0.610 |
|
Age cutoff |
|
|
|
|
0.800 |
≥75 |
5 |
-4.30 (-20.3, 11.43) |
97.3 |
0.592 |
|
<75 |
4 |
-7.58 (-27.53, 12.38) |
96.5 |
0.457 |
|
HT proportion |
|
|
|
|
0.810 |
<90 |
4 |
-14.35 (-42.06, 13.37) |
97.8 |
0.310 |
|
≥90 |
2 |
-10.30 (-28.04, 7.43) |
96.7 |
0.255 |
|
PAF proportion |
|
|
|
|
0.014 |
>50 |
1 |
14.20 (7.60, 20.80) |
- |
0.000 |
|
≤50 |
4 |
-18.66 (-43.95, 6.63) |
98.2 |
0.148 |
|
Devices type |
|
|
|
|
0.024 |
Dual-seal mechanism |
3 |
-1.35 (-23.92, 21.23) |
97.4 |
0.907 |
|
Single-seal mechanism |
4 |
4.02 (-4.61, 12.65) |
82.9 |
0.361 |
|
Muti-seal mechanism |
2 |
-31.56 (-55.57, -7.55) |
95.8 |
0.010 |
|