GBA1 and Parkinson disease: In the case of GBA1 p.D179H, the association with PD was statistically evident with higher ORs and narrow 95% CIs: 23andMe reporting OR = 3.4 (95% CI: 2.2–5.2) and OR = 3.3 (95% CI:2.1–5.0) in the meta-analysis.