Association between residual teeth number in later life and incidence of dementia: A systematic review and meta-analysis

Table 4 Meta-regression analysis of association between variables and dementia incidence

Tested variables	Pooled odds ratio^a	95% Lower limit	95% Upper limit
Age (9; 26,923) [10, 11, 21, 23,24,25,26,27,28]	1.068	1.007	1.142
Female (9; 27,823) [10, 11, 20, 22, 23, 25,26,27,28]	1.440	0.641	3.528
Alcohol (4; 10,931) [10, 22, 23, 26]	1.391	0.809	2.892
Smoking (6; 21,725) [10, 22,23,24,25, 27]	2.103	0.975	3.684
Diabetes (4; 16,466) [10, 22, 24, 25]	3.547	1.135	4.885
Hypertension (4; 5980) [22, 23, 25, 28]	3.146	1.071	4.610
Depression (3; 8322) [23, 25, 27]	1.894	0.906	3.998
High-level education attainment (4; 3502) [20, 22,23,24]	0.425	0.217	0.912
Denture use (5; 12,381) [20, 22, 26,27,28]	0.384	0.192	1.930
Regular dental care (4; 12,293) [22, 23, 26, 27]	0.581	0.298	0.946

^aPooled odds ratio > 1 indicates that tested variable is associated with an increase likelihood of dementia incidence

ISSN: 1471-2318