Nationwide incidence of VCI using random-efects meta-analysis and subgroup meta-analysis
| Variable |
No.of articles |
No.of participants |
No.of cases |
Prevalence% |
tau |
Subgroup Diference |
| Pooled analysis |
10 |
31022 |
302 |
1.2 |
0.0089 |
NA |
| Subgroup |
|
|
|
|
|
|
| Survey period |
|
|
|
|
|
|
| Overall |
10 |
31022 |
302 |
1.2 |
0.0089 |
0.1359 |
| <1990 |
3 |
3985 |
69 |
1.58 |
0.0125 |
|
| 1990~1999 |
4 |
17963 |
121 |
0.62 |
0.0016 |
|
| >1999 |
3 |
9074 |
112 |
1.71 |
0.0115 |
|
| Diagnosis of VCI |
|
|
|
|
|
|
| Overall |
10 |
31022 |
302 |
1.2 |
0.0089 |
0.2179 |
| Criteria 1 |
5 |
20846 |
217 |
1.43 |
0.0091 |
|
| Criteria 2 |
2 |
2294 |
16 |
0.61 |
0.0028 |
|
| Criteria 3 |
0 |
0 |
0 |
0 |
0 |
|
| Criteria 4 |
3 |
7882 |
69 |
1.3 |
0.0133 |
|
| Study quality |
|
|
|
|
|
|
| Overall |
10 |
31022 |
302 |
1.2 |
0.0089 |
0.0578 |
| Low quality |
4 |
20741 |
156 |
1.05 |
0.0095 |
|
| Medium quality |
1 |
7664 |
56 |
2.14 |
0 |
|
| High quality |
5 |
31022 |
90 |
1.16 |
0.0098 |
|
| Province |
|
|
|
|
|
|
| Overall |
9 |
18141 |
211 |
1.27 |
0.0095 |
0.0001 |
| Beijing |
3 |
4832 |
68 |
1.04 |
0.0091 |
|
| Guangdong |
1 |
5276 |
24 |
0.45 |
0 |
|
| Tianjin |
1 |
1181 |
32 |
2.71 |
0 |
|
| Shanghai |
3 |
4655 |
79 |
1.74 |
0.0098 |
|
| Shaanxi |
1 |
2197 |
8 |
0.36 |
0 |
|
| Note: |
|
This is a footnote. |