| Resumo: | <p><strong>Objectives</strong> To explore UK clinicians’ beliefs and behaviours around recommending e-cigarettes as a smoking cessation aid for patients with cancer.</p>
<p><strong>Design</strong> Cross-sectional online survey.</p>
<p><strong>Setting</strong> England, Wales, Scotland and Northern Ireland.</p>
<p><strong>Participants</strong> Clinicians involved in the care of patients with cancer.</p>
<p><strong>Primary and secondary outcomes</strong> Behavioural Change Wheel capability, opportunity and motivation to perform a behaviour, knowledge, beliefs, current practice around e-cigarettes and other smoking cessation practices.</p>
<p><strong>Method</strong> Clinicians (n=506) completed an online survey to assess beliefs and behaviours around e-cigarettes and other smoking cessation practices for patients with cancer. Behavioural factors associated with recommending e-cigarettes in practice were assessed.</p>
<p><strong>Results</strong> 29% of clinicians would not recommend e-cigarettes to patients with cancer who continue to smoke. Factors associated with recommendation include smoking cessation knowledge (OR 1.56, 95% CI 1.01 to 2.44) and e-cigarette knowledge (OR 1.64, 95% CI 1.06 to 2.55), engagement with patients regarding smoking cessation (OR 2.12, 95% CI 1.12 to 4.03), belief in the effectiveness of e-cigarettes (OR 2.36 95% CI 1.61 to 3.47) and belief in sufficient evidence on e-cigarettes (OR 2.08 95% CI 1.10 to 4.00) and how comfortable they felt discussing e-cigarettes with patients (OR 1.57 95% CI 1.04 to 2.36).</p>
<p><strong>Conclusion</strong> Many clinicians providing cancer care to patients who smoke do not recommend e-cigarettes as a smoking cessation aid and were unaware of national guidance supporting recommendation of e-cigarettes as a smoking cessation aid.</p>
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