Data from Norway’s Nord-Trøndelag Health Study showed that higher C-reactive protein was associated with an increased risk of AD (odds ratio (95% CI): 2.37 (1.01–5.58)) in individuals aged 60–70.5 years and a decreased risk in those aged 70.6–94 years (0.39 (0.19–0.84)) [34]. This evidence concerns the gene CRP and Alzheimer disease.