In persons with moderate-severe dementia (OR 0.05, 95% CrI < 0.01 to 0.71; NNH = 14), with mild-moderate dementia (OR 0.01, 95% CrI < 0.01 to 0.74; NNT = 17), or enrolled in studies longer than 12 weeks (OR 0.01, 95% CrI < 0.01 to 0.8; NNT = 15), anticonvulsants were associated with lower odds of fracture compared to cholinesterase inhibitors+memantine. This evidence concerns the gene BCHE and dementia.