Table 2 Multivariate analysis (random effects model) of the meta-regression
Meta-regression Coefficient (%) | 95% CI | P | |
|---|---|---|---|
Dementia | |||
Geographical region | |||
East China | 0.2965 | −0.4241-1.0171 | 0.4199 |
North China | 0.3952 | −0.3414-1.1319 | 0.2930 |
South China | 0.0179 | −0.7462-0.7820 | 0.9634 |
Central China (ref.) | – | – | – |
Northeast China | 0.7058 | −0.3754-1.7871 | 0.2007 |
Northwest China | 0.2726 | −0.6063-1.1514 | 0.5433 |
Southwest China | −0.1598 | −0.9669- 0.6472 | 0.6979 |
Diagnostic criteria | |||
DSM-III/III-R (ref.) | – | – | – |
DSM-IV/IV-R | 0.6930 | 0.3919–0.9940 | < 0.0001 |
ICD-10 | 0.3147 | −0.2421-0.8715 | 0.2680 |
HDS | −0.3239 | −1.3516-0.7037 | 0.5367 |
AD | |||
Geographical region | |||
East China | 0.4463 | −0.4022-1.2948 | 0.3025 |
North China | 0.3469 | −0.5217-1.2155 | 0.4338 |
South China | 0.0150 | −0.8853-0.9154 | 0.9739 |
Central China (ref.) | – | – | – |
Northeast China | 0.5119 | −0.7663-1.7900 | 0.4325 |
Northwest China | 0.1775 | −0.8587-1.2137 | 0.7371 |
Southwest China | 0.0175 | −0.9328-0.9679 | 0.9711 |
Diagnostic criteria | |||
DSM-III/III-R (ref.) | – | – | – |
DSM-IV/IV-R | 0.7478 | 0.4020–1.0935 | < 0.0001 |
ICD-10 | 0.2641 | −0.3752-0.9034 | 0.4181 |
HDS | −0.1414 | −1.3096-1.0268 | 0.8125 |
VAD | |||
Geographical region | |||
East China | 0.4028 | −0.0984-0.9041 | 0.1152 |
North China | 0.8777 | 0.3787–1.3767 | 0.0006 |
South China | 0.4186 | −0.1079-0.9450 | 0.1192 |
Central China (ref.) | – | – | – |
Northeast China | 1.2313 | 0.5023–1.9603 | 0.0009 |
Northwest China | 0.8385 | 0.2546–1.4225 | 0.0049 |
Southwest China | 0.4186 | −0.1079-0.9450 | 0.1192 |
Diagnostic criteria | |||
DSM-III/III-R (ref.) | – | – | – |
DSM-IV/IV-R | 0.6128 | 0.2542–0.9713 | 0.0008 |
ICD-10 | 0.6050 | −0.0534- 1.2634 | 0.0717 |
HDS | −0.2097 | −1.4028-0.9835 | 0.7305 |