Table 3 illustrates the size of the underreporting bias, by displaying the rates of hazardous drinkers before and after correction in 10 OECD countries. These estimates corroborate Canadian findings showing that the proportion of adults drinking above 40 grams of pure alcohol daily increases from 5% to 20% after correction in men and from 1% to 6% in women (Shield and Rehm, 2012). This permits to limit smearing data with other sources of bias.