Department of Alcohol, Tobacco, and Drugs, Norwegian Institute of Public Health, Oslo, Norway.
PROMENTA Research Center, Department of Psychology, University of Oslo, Oslo, Norway.
Addiction. 2021 Jun;116(6):1389-1398. doi: 10.1111/add.15279. Epub 2020 Oct 29.
No previous studies have examined the prospective association between disposable income and binge-drinking initiation among adolescents. We aimed to examine whether there is such an association and, if so, whether it is robust to confounders, uniform across individual characteristics and linear versus non-linear.
Prospective study of adolescents from 32 middle schools, stratified according to geographic location, urban and rural locations and standard of living. Adolescents were assessed in 2017 (T1) and 1 year later (T2).
Norway.
A nation-wide sample of 1845 adolescents (mean age 13.5 years, 44% boys) with no binge-drinking experience at T1.
Data were collected on binge drinking at T1 and T2. Data on disposable income and on a range of demographic, individual and family factors were collected at T1.
Overall, 7.2% initiated binge drinking between T1 and T2. Logistic regression showed that the crude linear effect of disposable income on binge drinking initiation was substantial, and only slightly attenuated in the fully adjusted model including all putative confounders [odds ratio (OR) = 1.19, 95% confidence interval (CI) = 1.08, 1.31, P < 0.001]. However, interaction analyses showed disposable income to be negatively related to binge drinking initiation for adolescents who had experienced light drinking at T1 (OR = 0.66, 95% CI = 0.49, 0.89, P = 0.006) or who had seen their mothers intoxicated [OR = 0.62, 95% CI = 0.39, 0.99, P = 0.043).
Norwegian adolescents with higher disposable income have a greater risk of subsequent binge drinking initiation than those with lower disposable income. Each additional 100 NOK (≈ €10) of weekly income increased the risk of binge drinking initiation in the following year by approximately 20%.
此前尚无研究探讨青少年可支配收入与狂饮起始之间的前瞻性关联。本研究旨在检验这种关联是否存在，如果存在，它是否受到混杂因素的影响，是否在个体特征和线性与非线性方面具有一致性。
对来自 32 所中学的青少年进行前瞻性研究，根据地理位置、城乡位置和生活水平进行分层。在 2017 年（T1）和 1 年后（T2）对青少年进行评估。
挪威。
一项全国性的样本，包括 1845 名无 T1 时狂饮经历的青少年（平均年龄 13.5 岁，44%为男性）。
在 T1 和 T2 时收集狂饮数据。在 T1 时收集可支配收入以及一系列人口统计学、个体和家庭因素的数据。
总体而言，7.2%的青少年在 T1 和 T2 之间开始狂饮。逻辑回归显示，可支配收入对狂饮起始的粗线性效应显著，且在纳入所有潜在混杂因素的完全调整模型中仅略有减弱[比值比（OR）=1.19，95%置信区间（CI）=1.08，1.31，P<0.001]。然而，交互分析显示，对于在 T1 时经历过轻度饮酒或见过母亲醉酒的青少年，可支配收入与狂饮起始呈负相关[OR=0.66，95%CI=0.49，0.89，P=0.006]或[OR=0.62，95%CI=0.39，0.99，P=0.043]。
挪威青少年的可支配收入越高，随后狂饮起始的风险就越大。每周可支配收入每增加 100 挪威克朗（≈10 欧元），下一年狂饮起始的风险就会增加约 20%。
