烟草使用是许多慢性健康状况的危险因素。量化患有烟草相关疾病 (TRI) 的人的烟草使用负担可以加强戒烟计划。这项研究估计了肯尼亚四家国家转诊医院的 TRI 患者烟草使用的流行率、模式和相关性。我们在 2022 年 1 月至 7 月期间对患有五种 TRI（癌症、心血管疾病、脑血管疾病、慢性阻塞性肺疾病和肺结核）的患者进行了一项横断面研究。对从医疗记录中确定的病例进行了社会人口统计、烟草使用等方面的采访和戒烟信息。描述性统计数据用于描述烟草使用模式的特征。使用多重逻辑回归模型来确定与烟草使用的关联。我们确定了 2,032 名 TRI 患者； 46% (939/2,032) 年龄≥60 岁，61% (1,241/2,032) 为男性。大约 45% (923/2,032) 曾经是烟草使用者（目前吸烟者占 6%，以前吸烟者占 39%）。大约一半的吸烟者和 58% 的无烟烟草使用者在上个月曾尝试戒烟； 42% 通过戒烟咨询。 28% 的参与者存在合并症。大多数（92%）患者在过去五年内被诊断为 TRI。最常见的 TRI 是口腔咽癌（36% [725/2,032]）、鼻咽癌（12% [246/2.032]）和肺癌（10% [202/2,032]）。 60 岁以上（aOR 2.24，95% CI：1.84，2.73）和未婚（aOR 1.21，95% CI：1.03，1.42）的患者吸烟的几率较高。女性患者（aOR 0.35，95% CI：0.30，0.41）和无饮酒史的患者（aOR 0.27，95% CI：0.23，0.31）吸烟的几率较低。我们的研究显示，肯尼亚 TRI 患者的烟草使用率很高，尤其是老年、男性、受教育程度较低、未婚和酗酒者。我们建议将 TRI 患者的烟草使用筛查和戒烟计划作为临床护理的一部分。版权所有：© 2023 Mwenda 等人。这是一篇根据知识共享署名许可条款分发的开放获取文章，允许在任何媒体上不受限制地使用、分发和复制，前提是注明原始作者和来源。

Tobacco use is a risk factor for many chronic health conditions. Quantifying burden of tobacco use among people with tobacco-related illnesses (TRI) can strengthen cessation programs. This study estimated prevalence, patterns and correlates of tobacco use among patients with TRI at four national referral hospitals in Kenya. We conducted a cross-sectional study among patients with five TRI (cancer, cardiovascular diseases, cerebrovascular disease, chronic obstructive pulmonary disease, and pulmonary tuberculosis) during January-July 2022. Cases identified from medical records were interviewed on socio-demographic, tobacco use and cessation information. Descriptive statistics were used to characterize patterns of tobacco use. Multiple logistic regression models were used to identify associations with tobacco use. We identified 2,032 individuals with TRI; 46% (939/2,032) had age ≥60 years, and 61% (1,241/2,032) were male. About 45% (923/2,032) were ever tobacco users (6% percent current and 39% former tobacco users). Approximately half of smokers and 58% of smokeless tobacco users had attempted quitting in the last month; 42% through cessation counselling. Comorbidities were present in 28% of the participants. Most (92%) of the patients had been diagnosed with TRI within the previous five years. The most frequent TRI were oral pharyngeal cancer (36% [725/2,032]), nasopharyngeal cancer (12% [246/2.032]) and lung cancer (10% [202/2,032]). Patients >60 years (aOR 2.24, 95% CI: 1.84, 2.73) and unmarried (aOR 1.21, 95% CI: 1.03, 1.42) had higher odds of tobacco use. Female patients (aOR 0.35, 95% CI: 0.30, 0.41) and those with no history of alcohol use (aOR 0.27, 95% CI: 0.23, 0.31), had less odds of tobacco use. Our study shows high prevalence of tobacco use among patients with TRI in Kenya, especially among older, male, less educated, unmarried, and alcohol users. We recommend tobacco use screening and cessation programs among patients with TRI as part of clinical care.Copyright: © 2023 Mwenda et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.