Abstract
Background: Very little is known about the influence of chronic conditions on symptom attribution and help-seeking for potential cancer symptoms. Aim: We aimed to determine if symptom attribution and anticipated help-seeking for potential lung cancer symptoms is influenced by pre-existing respiratory conditions (often referred to as comorbidity) such as asthma or chronic obstructive pulmonary disease (COPD). Design and Setting: 2 143 adults (1081 with and 1062 without a respiratory condition) took part in an online vignette survey. Method: The vignette described potential lung cancer symptoms (persistent cough and breathlessness) after which questions were asked on symptom attribution and anticipated help-seeking. Results: Attribution of symptoms to cancer was similar in participants with and without respiratory conditions (22%). Participants with respiratory conditions, compared to those without, were more likely to attribute the new or changing cough and breathlessness to asthma or COPD (adjusted odds ratio=3.64, 95% CI=3.02,4.39). Overall, 56.5% of participants reported intention to seek help from a GP within 3 weeks if experiencing the potential lung cancer symptoms. Having a respiratory condition increased the odds of prompt help-seeking (OR=1.25, 95% CI=1.04,1.49). Regular healthcare appointments was associated with higher odds of anticipated help-seeking. Conclusions: Only 1 in 5 participants identified persistent cough and breathlessness as potential cancer symptoms, and half said they would promptly seek help from a GP, indicating scope for promoting help-seeking for new or changing symptoms. Chronic respiratory conditions did not appear to interfere with anticipated help-seeking, which might be explained by regular appointments to manage chronic conditions.