It can cost a lot of money for people living with chronic health conditions to access healthcare. This can lead to a range of issues for them, for example not taking medications due to cost or not paying household bills to afford healthcare. Firstly participants wereasked some basic demographic questions This survey asked people living with one or more health conditions how much they spend on healthcare (broken down by healthcare area and chronic condition). They were then asked what healthcare services they would prioritise if they were faced with financial constraints. Then they were asked to explain their decisions and some questions about their real life experiences of financial issues related to healthcare. We think this can inform us about the potential effects of high healthcare costs and how people make decisions when placed in these circumstances.

Probability: Stratified. The company was tasked with sampling a group representative of the public aged 40 years and over with one or more conditions in terms of age, region, sex, socioeconomic status, and area (urban/rural) using stratified random sampling. The company primarily recruited from their pre-established national online research panel of 27,951 people aged 16 years or over. large proportions of certain groups had not used the internet in the three months prior to the survey, particularly those aged over 75 years and over (56%) and the socioeconomically most disadvantage quintile (16%) (34) . To increase the response rate among these groups, supplemental door-to-door recruitment was carried out. This involved the researchers from the survey company conducting random door-to-door sampling in randomly chosen locations in Ireland. When going door-to-door, recruiters first requested demographic information. Then, if the prospective participant met the inclusion criteria, and were in an under-represented group, they were provided with study information and how it could be completed online.

Self-administered questionnaire: Computer-assisted (CASI)