|
Variable
|
No. of trails
|
HR
|
95%CI
|
P value
|
Heterogeneity(I2)
|
|---|
|
Site of infection
|
|
respiratory tract
|
6
|
1.15
|
1.10
|
1.20
|
< 0.001
|
71%
|
|
others
|
3
|
1.15
|
1.06
|
1.25
|
< 0.001
|
50%
|
|
Comorbidity
|
|
hypertension and DM
|
8
|
1.12
|
1.10
|
1.13
|
< 0.001
|
81%
|
|
others
|
3
|
1.24
|
1.14
|
1.34
|
< 0.001
|
70%
|
|
NOS score
|
|
≥ 7
|
7
|
1.13
|
1.10
|
1.17
|
< 0.001
|
14%
|
|
< 7
|
4
|
1.31
|
1.06
|
1.62
|
< 0.001
|
87%
|
|
Study design
|
|
CCS
|
6
|
1.08
|
1.06
|
1.10
|
< 0.001
|
75%
|
|
RCS
|
3
|
1.14
|
1.13
|
1.16
|
< 0.001
|
0%
|
|
PCS
|
2
|
1.83
|
1.30
|
2.59
|
< 0.001
|
10%
|
|
Region
|
|
Europe or North America
|
2
|
1.07
|
1.05
|
1.09
|
< 0.001
|
83%
|
|
Asia
|
9
|
1.14
|
1.13
|
1.16
|
< 0.001
|
53%
|
