Cance Jessica Duncan, Talley Anna E, Morgan-Lopez Antonio, Fromme Kim
a Department of Kinesiology and Health Education , The University of Texas at Austin , Austin , Texas , USA.
b RTI International, Research Triangle Park , North Carolina , USA.
Subst Use Misuse. 2017 Feb 23;52(3):373-382. doi: 10.1080/10826084.2016.1228677. Epub 2016 Oct 25.
The concurrent use of alcohol and tobacco has a multiplicative effect on both social and physical consequences. While it is known that alcohol and tobacco use are strongly correlated in emerging adulthood, there is significant individual variability in use. However, little research has examined how patterns of concurrent use are related over time.
The current study explores these longitudinal conjoint trajectories, as well as the associated sociodemographic factors.
We used sequential latent class growth analysis to explore the co-occurring longitudinal patterns of recent alcohol and tobacco use across emerging adulthood (10 data collection periods, 2004-2009) with a diverse sample of 2,244 college students (60% female; 54% White).
Twenty distinct patterns of conjoint alcohol and tobacco use were found. There was more variation in tobacco use trajectories among alcohol users than variation in alcohol trajectories among tobacco users. Using multinomial logistic regression models we determined the impact of sociodemographic characteristics on classification into each conjoint pattern versus the normative trajectory (Abstaining tobacco/Low alcohol). Male gender, White race, fraternity/sorority affiliation, and higher family income were significantly associated with riskier conjoint trajectory patterns. Conclusions/Importance: Findings highlight the diversity of alcohol and tobacco use behaviors across emerging adulthood. The low variation in alcohol use among tobacco users indicates that tobacco use is a significant risk factor for heavier drinking. A better understanding of the covarying use of these two ubiquitous substances may provide new avenues for preventing and reducing the use of both.
酒精和烟草的同时使用对社会和身体后果具有倍增效应。虽然已知在成年早期酒精和烟草的使用密切相关，但使用情况存在显著的个体差异。然而，很少有研究探讨同时使用模式随时间的关系。
本研究探讨这些纵向联合轨迹以及相关的社会人口学因素。
我们使用序列潜在类别增长分析，以2244名大学生（60%为女性；54%为白人）的多样化样本，探索成年早期（2004 - 2009年的10个数据收集期）近期酒精和烟草使用的共同出现的纵向模式。
发现了20种不同的酒精和烟草联合使用模式。酒精使用者中烟草使用轨迹的变化比烟草使用者中酒精轨迹的变化更多。使用多项逻辑回归模型，我们确定了社会人口学特征对分类到每种联合模式与正常轨迹（不使用烟草/低酒精使用）的影响。男性、白人、兄弟会/姐妹会成员身份以及较高的家庭收入与风险更高的联合轨迹模式显著相关。结论/重要性：研究结果突出了成年早期酒精和烟草使用行为的多样性。烟草使用者中酒精使用的低变化表明烟草使用是大量饮酒的重要风险因素。更好地理解这两种普遍存在的物质的共同使用情况可能为预防和减少两者的使用提供新途径。
