We investigated changes in alcohol consumption following the COVID-19 lockdown among French-speaking Belgian individuals at risk for severe alcohol use disorder. Participants (N = 299) at risk for alcohol use disorder (AUD, i.e., score higher than 19 at the Alcohol Use Disorder Identification Test), and 299 moderate drinkers (MOD, i.e., score lower than 8) individually matched for age, gender and education provided self-reports of alcohol consumption changes (i.e., number of alcohol units consumed during a typical week before and during lockdown). AUD were more likely (91.31%) than MOD (71.57%) to modify their consumption following lockdown (p < 0.0001). They were more likely to decrease (65.89% vs. 35.12%, p < 0.0001) and less likely to increase (25.42% vs. 36.45%, p = 0.004) their consumption than MOD. Analyses of post-pre lockdown differences in alcohol consumption showed that AUD presented a stronger decrease than MOD (−13.97 units/week vs. -0.07, p < 0.0001). Among individuals who decreased consumption, AUD decreased more (−27.92 vs. -2.74, p < 0.0001) than MOD. Among those who increased consumption, AUD increased more (17.32 vs. 2.44, p < 0.0001) than MOD. We thus observed sharp consumption increases or conversely abrupt decreases in individuals at high risk of alcohol use disorder, underscoring the need to develop prophylactic interventions for this population during such sanitary crises, to avoid brutal changes of the alcohol consumption pattern. Efforts should be made to mitigate consumption increases but also to favor progressive rather than sudden decreases in order to prevent damaging withdrawal symptoms.

我们调查了COVID-19锁定后有严重酒精滥用风险的比利时比利时人中酒精消费的变化。参加者（N  = 299）有饮酒障碍的风险（AUD，即在饮酒障碍识别测试中得分高于19）和299名中度饮酒者（MOD，得分低于8）根据年龄，性别进行匹配并且教育提供了酒精消耗变化的自我报告（即，锁定前和锁定期间的典型一周内消耗的酒精单位数）。锁定后，澳元更有可能（91.31％）比MOD（71.57％）修改其消费（p  <0.0001）。他们更有可能减少（65.89％vs. 35.12％，p <0.0001），而不太可能增加（25.42％vs. 36.45％，p = 0.004）比MOD消耗更多。酒后禁酒后锁定差异的分析表明，澳元的降价幅度比国防部更强（−13.97单位/周vs -0.07，p <0.0001）。在减少消费的个体中，澳元比MOD下降更多（-27.92比-2.74，p <0.0001）。在增加消费的人群中，澳元的涨幅比MOD高（17.32比2.44，p <0.0001）。因此，我们观察到有高度饮酒障碍风险的个体的饮酒量急剧增加或相反地急剧下降，强调了在这种卫生危机期间需要对该人群制定预防性干预措施，以避免酒精消费模式的残酷变化。应努力减轻消费量的增加，但也应鼓励逐步减少而不是突然减少，以防止破坏性戒断症状。