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

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

Tested variables Pooled odds ratioa 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
  1. aPooled odds ratio > 1 indicates that tested variable is associated with an increase likelihood of dementia incidence