De-identified study dataset.

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.烟草使用是多种慢性健康疾病的危险因素。对烟草相关疾病（tobacco-related illnesses, TRI）患者群体的烟草使用负担进行量化，能够强化戒烟干预项目。本研究针对肯尼亚四家国家级转诊医院的烟草相关疾病患者，评估了其烟草使用的流行特征、使用模式及相关影响因素。本研究于2022年1月至7月期间，针对罹患五种烟草相关疾病（包括癌症、心血管疾病、脑血管疾病、慢性阻塞性肺疾病及肺结核）的患者开展了横断面研究。研究人员从医疗记录中筛选出符合条件的病例，对其开展社会人口学特征、烟草使用及戒烟相关信息的访谈调查。本研究采用描述性统计方法刻画烟草使用模式，并通过多重logistic回归模型分析与烟草使用相关的关联因素。本研究共纳入2032名烟草相关疾病患者，其中46%（939/2,032）的患者年龄≥60岁，61%（1,241/2,032）为男性。约45%（923/2,032）的研究对象曾有烟草使用史，其中6%为当前使用者，39%为既往使用者。约半数吸烟者及58%的无烟烟草使用者在过去一个月内尝试过戒烟，其中42%通过戒烟咨询获得了戒烟帮助。28%的研究对象存在共病情况。绝大多数（92%）患者在过去五年内被确诊为烟草相关疾病。最常见的烟草相关疾病为口咽癌（36%[725/2,032]）、鼻咽癌（12%[246/2,032]）及肺癌（10%[202/2,032]）。年龄超过60岁的患者（调整后优势比[aOR]=2.24，95%置信区间[CI]:1.84~2.73）以及未婚患者（aOR=1.21，95%CI:1.03~1.42）的烟草使用风险更高。女性患者（aOR=0.35，95%CI:0.30~0.41）以及无饮酒史的患者（aOR=0.27，95%CI:0.23~0.31）的烟草使用风险更低。本研究结果显示，肯尼亚烟草相关疾病患者群体的烟草使用流行率较高，尤其集中于老年、男性、受教育程度较低、未婚及有饮酒史的人群。我们建议将烟草使用筛查及戒烟干预项目纳入烟草相关疾病患者的临床诊疗流程中。