| Variable | No.of articles | No.of participants | No.of cases | Prevalence% | tau | Subgroup Diference |
|---|---|---|---|---|---|---|
| Pooled analysis | 73 | 784846 | 5354 | 1.54 | 0.017 | NA |
| Subgroup | ||||||
| Age | ||||||
| Overall | 93 | 326036 | 1547 | 1.62 | 0.0156 | <0.0001 |
| ＜60 | 7 | 5944 | 29 | 0.19 | 0 | |
| 61~70 | 28 | 97475 | 370 | 0.73 | 0.0076 | |
| 71~80 | 28 | 152717 | 647 | 1.85 | 0.0134 | |
| ＞80 | 30 | 69900 | 501 | 2.91 | 0.0253 | |
| Sex | ||||||
| Overall | 88 | 419301 | 2732 | 1.69 | 0.0183 | 0.8878 |
| Female | 44 | 210239 | 1408 | 1.66 | 0.019 | |
| Male | 44 | 209062 | 1324 | 1.72 | 0.018 | |
| Survey period | ||||||
| Overall | 73 | 784846 | 5354 | 1.54 | 0.017 | 0.0002 |
| 1985-1990 | 4 | 11054 | 74 | 1.01 | 0.0091 | |
| 1991-1996 | 16 | 455992 | 768 | 0.64 | 0.0059 | |
| 1997-2002 | 21 | 126522 | 998 | 0.79 | 0.0034 | |
| 2003-2008 | 10 | 30630 | 793 | 2.55 | 0.0172 | |
| 2009-2014 | 16 | 97270 | 1561 | 1.89 | 0.0131 | |
| 2015-2023 | 6 | 63378 | 1160 | 4.77 | 0.0554 | |
| Screening of VCI | ||||||
| Overall | 71 | 778060 | 4883 | 1.33 | 0.0125 | 0.9423 |
| MMSE | 58 | 466600 | 3382 | 1.32 | 0.0118 | |
| Other screening criteria | 13 | 311460 | 1501 | 1.35 | 0.015 | |
| Diagnosis of VCI | ||||||
| Overall | 73 | 784846 | 5354 | 1.54 | 0.017 | 0.1783 |
| Criteria 1 | 34 | 488250 | 3293 | 1.4 | 0.011 | |
| Criteria 2 | 11 | 79137 | 1160 | 2.51 | 0.0211 | |
| Criteria 3 | 2 | 6275 | 117 | 1.86 | 0 | |
| Criteria 4 | 26 | 211184 | 784 | 1.33 | 0.0268 | |
| Study quality | ||||||
| Overall | 73 | 784846 | 5354 | 1.54 | 0.017 | 0.5722 |
| Low quality | 27 | 367011 | 2129 | 1.62 | 0.0227 | |
| Medium quality | 21 | 281949 | 1512 | 1.73 | 0.0213 | |
| High quality | 25 | 135886 | 1713 | 1.3 | 0.0069 | |
| Province | ||||||
| Overall | 69 | 691926 | 4164 | 1.56 | 0.0177 | <0.0001 |
| Beijing | 11 | 21681 | 365 | 1.86 | 0.0089 | |
| Tianjin | 3 | 8700 | 242 | 6.16 | 0.072 | |
| Hebei | 3 | 46453 | 469 | 2.05 | 0.016 | |
| Jilin | 1 | 895 | 32 | 3.58 | 0 | |
| Shanghai | 9 | 47488 | 413 | 1.29 | 0.0099 | |
| Jiangsu | 1 | 3268 | 16 | 0.49 | 0 | |
| Zhejiang | 4 | 13404 | 115 | 0.99 | 0.004 | |
| Anhui | 1 | 2749 | 27 | 0.98 | 0 | |
| Fujian | 3 | 4564 | 39 | 0.6 | 0.007 | |
| Jiangxi | 1 | 2126 | 14 | 0.66 | 0 | |
| Shandong | 3 | 239167 | 427 | 1.16 | 0.0094 | |
| Hubei | 1 | 10116 | 597 | 5.9 | 0 | |
| Hunan | 3 | 17408 | 116 | 0.63 | 0.0037 | |
| Guangdong | 7 | 20126 | 174 | 0.86 | 0.002 | |
| Guangxi | 1 | 889 | 18 | 2.02 | 0 | |
| Hainan | 6 | 209666 | 364 | 0.41 | 0.0037 | |
| Chongqing | 1 | 1519 | 9 | 0.59 | 0 | |
| Sichuan | 3 | 15248 | 50 | 0.33 | 0.0013 | |
| Guizhou | 1 | 3229 | 18 | 0.56 | 0 | |
| Shaanxi | 1 | 4850 | 54 | 1.11 | 0 | |
| Xinjiang | 4 | 13083 | 595 | 4.69 | 0.0347 | |
| Taiwan | 1 | 5297 | 10 | 0.19 | 0 | |
| Economic Zone-3 | ||||||
| Overall | 72 | 783020 | 5336 | 1.54 | 0.0171 | <0.0001 |
| Eastern | 45 | 334194 | 1738 | 1.31 | 0.0128 | |
| Central | 13 | 318914 | 1682 | 1.73 | 0.0167 | |
| Western | 11 | 38818 | 744 | 2.16 | 0.0274 | |
| Eastern, Western | 1 | 34807 | 295 | 0.85 | 0 | |
| Eastern, Western, Central | 2 | 56287 | 877 | 1.56 | 0 | |
| Education years | ||||||
| Overall | 42 | 47735 | 775 | 1.68 | 0.0147 | 0.0304 |
| ＜1 | 14 | 14830 | 364 | 2.76 | 0.0206 | |
| 1~6 | 14 | 15666 | 223 | 1.26 | 0.0072 | |
| ＞6 | 14 | 17239 | 188 | 1.01 | 0.0088 | |
| Region | ||||||
| Overall | 26 | 296016 | 978 | 1 | 0.0059 | 0.4259 |
| Rural | 13 | 218744 | 524 | 0.91 | 0.004 | |
| Urban | 13 | 77272 | 454 | 1.13 | 0.0079 | |
| Note: | ||||||
| This is a footnote. |