TABLE 3.

Comparison of Previous Case-Control Studies in Different Countries and Races

Reference	Race	Case vs. control (N)	Exposure	OR (95% CI)
Renard et al13	American (white)	339 vs. 339	>3 drinks per day	0.81 (0.29–2.31)
			Heavy drinking	1.41 (0.82–2.45)
Leske et al15	American (white)	122 vs. 190	Drinking history	1.22 (0.66–2.24)
Leske et al16	American-African	67 vs. 219	Drinking history	0.80 (0.34–1.88)
Kaimbo et al17	African	40 vs. 104	Drinking history	0.96 (0.39–2.40)
Charliat et al14	European	175 vs. 175	Current drinking	1.00 (0.57–1.73)
Chiam et al22	Asian	180 vs. 1427	>2 d per week	1.27 (0.53–3.03)
The current study	Japanese	3207 vs. 3207	Almost everyday	1.40 (1.18–1.66)
			>4 drinks per day	1.13 (0.84–1.52)

OR indicates odds ratio.