College of Nursing, Aichi Medical University, Nagakute-city, Aichi, Japan.
Department of Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya-city, Aichi, Japan.
PLoS One. 2020 Dec 7;15(12):e0243374. doi: 10.1371/journal.pone.0243374. eCollection 2020.
We previously developed the Tobacco Craving Index (TCI) to assess craving of smokers. In the present study, we validated the relationship between the TCI grade over the 5 sessions of Japanese smoking cessation therapy (SCT) and success of quitting smoking among 889 Japanese patients.
The Japanese SCT consists of 5 sessions of SCT (first session and sessions 2, 4, 8 and 12 weeks later). In the TCI questionnaire, patients are asked to rate their strength of craving and frequency of craving, each on a four-point Likert scale. Patients are classified into one of four grades based on their responses (0, I, II, III, with III indicating severe craving). The TCI questionnaire was administered to each participant at each session of the SCT. This study included participants of Japanese SCT who answered the TCI at the first session of the SCT at five Japanese smoking cessation clinics. Patients who dropped out of the SCT from the second to the fifth sessions were considered to have failed smoking cessation. To elucidate how much the TCI grade predicts smoking status at the last session, we performed multivariate logistic regression analysis with adjustment for confounding factors.
Participants who had higher TCI grade(III) in the 2nd through 5th sessions showed significantly lower probability for success of quitting smoking than those who had lower TCI grades(0 or I) (adjusted odds ratio: 2nd session: 0.30, 3rd session: 0.15, 4th session: 0.06, 5th session: 0.02).
We validated the usefulness of the TCI grade for assessing probability of quitting smoking by using a large number of smoking cessation settings.
我们之前开发了烟草渴求指数（TCI）来评估吸烟者的渴求程度。在本研究中，我们验证了 889 名日本戒烟患者在 5 次日本戒烟治疗（SCT）疗程中 TCI 等级与戒烟成功之间的关系。
日本 SCT 由 5 次 SCT 组成（第 1 次和第 2、4、8 和 12 周后各 1 次）。在 TCI 问卷中，患者被要求对他们的渴求强度和渴求频率进行 4 点李克特量表评分。根据他们的回答，患者被分为四个等级之一（0、I、II、III，III 表示严重渴求）。在 SCT 的每次疗程中，都会向每位参与者发放 TCI 问卷。本研究纳入了在五家日本戒烟诊所的 SCT 第 1 次疗程中回答 TCI 的日本 SCT 参与者。从第 2 次到第 5 次疗程中退出 SCT 的患者被认为戒烟失败。为了阐明 TCI 等级在最后一次疗程中对吸烟状况的预测程度，我们进行了多变量逻辑回归分析，并调整了混杂因素。
在第 2 到第 5 次疗程中 TCI 等级较高（III）的参与者戒烟成功的可能性显著低于 TCI 等级较低（0 或 I）的参与者（调整后的优势比：第 2 次疗程：0.30，第 3 次疗程：0.15，第 4 次疗程：0.06，第 5 次疗程：0.02）。
我们通过大量的戒烟环境验证了 TCI 等级用于评估戒烟可能性的有效性。
