Table 1. ORs and APs for developing Parkinson’s disease according to caffeine consumption status and LRRK2 R1628P.

Genotype	caffeineintake	No. of cases/Controls	OR (95% CI)a	AP (95% CI)
				0.74 (0.20, 1.29)
GG	Yes	257/369	Reference
GG	No	81/41	1.91 (0.94, 3.89)	P = 0.07
GC	Yes	18/15	3.07 (2.02, 4.66)	P < 0.001
GC	No	10/1	15.40 (1.94, 122.3)	P = 0.010

^aAll risk factors in the same logistic regression model and adjusted by age, family history and gender.