## 4 Results  
Of 74 respondents who consented to participate in the study, 59 (79.7%) completed the baseline and follow-up questionnaires. Table 1 provides a summary of demographic data. Most respondents were recruited from Rockingham (33.9%) and Busselton (27.1%) clinics, and most were female (35/59; 59.3%). The mean age was 62.5 \(\pm\) 14.2 years (range from 27-84 years). The majority of respondents (36/59; 61.0%) had worked in smoky or dusty environments such as farms, mining or industrial environments, cleaning and painting (Table 2). Thirty respondents (50.9%) reported a history of asthma and 11 a history of COPD (18.6%). Of these respondents, 8 (13.6%) reported both asthma and COPD.  
Approximately half of the respondents had never smoked (29/59; 49.1%), with 24 (40.7%) identifying as former smokers and 6 (10.2%) as current smokers. A significant proposal of respondents had multiple comorbidities (45/59; 76.3%), the most common being asthma (30/59; 50.9%) and back pain (23/59; 39.0%). Asthma diagnosis was most commonly made by a doctor (24/30; 80.0%).  
Most respondents had had a previous lung function test (32/59; 54.2%) (Table 1), which was most commonly performed by a respiratory scientist (14/30; 46.7%). The most common reason for the current lung function test was that their GP had referred them (31/59; 52.5%) or they were referred by a respiratory specialist (29/59; 49.2%) (one person selected more than one response).  
Most respondents (48/59; 81.4%) did not use any respiratory medicines. For patients using pharmacotherapy, commonly used respiratory medications (>5) included the beta2-agonist salbutamol, corticosteroids (cidesonide) and a combination of tiotropium/olodaterol.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Parameter** & \(n\) & \% \\ \hline  & Rockingham & 20 & 33.9 \\ Clinic (\(n=59\)) & Carine & 12 & 20.3 \\  & Narrowgin & 11 & 18.6 \\  & Busselton & 16 & 27.1 \\ \hline Gender (\(n=59\)) & Male & 24 & 40.7 \\  & Female & 35 & 59.3 \\ \hline  & 20–29 & 1 & 1.7 \\  & 30–39 & 5 & 8.5 \\  & 40–49 & 4 & 6.8 \\ Age (\(n=59\)) & 50–59 & 11 & 18.6 \\  & 60–69 & 18 & 30.5 \\  & 70–79 & 14 & 23.7 \\  & 80–89 & 6 & 10.2 \\ \hline  & Australia & 37 & 62.7 \\  & Canada & 1 & 1.7 \\  & England & 1 & 1.7 \\  & Italy & 1 & 1.7 \\ Country of birth (\(n=59\)) & New Zealand & 4 & 6.8 \\  & Scotland & 3 & 5.1 \\  & Singapore & 1 & 1.7 \\  & South Africa & 1 & 1.7 \\  & USA & 2 & 3.4 \\  & United Kingdom & 8 & 13.6 \\ \hline Aboriginal and Torres Strait Islander (ATSI) & Yes & 7 & 11.9 \\ (\(n=59\)) & No & 52 & 88.1 \\ \hline  & Self-employed & 10 & 16.9 \\  & Employed for wages & 10 & 16.9 \\  & Homemaker & 5 & 8.5 \\ Employment (\(n=59\)) & Retired & 29 & 49.2 \\  & Not employed/looking for work & 1 & 1.7 \\  & Not employed/not looking for work & 2 & 3.4 \\  & Student & 1 & 1.7 \\  & Unable to work & 1 & 1.7 \\ \hline  & & Never smoked & 29 & 49.1 \\ Smoking status (\(n=59\)) & Former smoker & 24 & 40.7 \\  & Current smoker & 6 & 10.2 \\ \hline  & Confirmation of diagnosis & 9 & 15.2 \\  & Uncontrolled symptoms/exacerbation of disease/not feeling good & 8 & 13.6 \\  & The specialist requested the test (respiratory specialist referral) & 29 & 49.2 \\ Reasons for lung function test (participants & General practitioner referred me (GP referral) & 31 & 52.5 \\  & A friend suggested I have a lung function test & 0 & 0.0 \\  & I decided to attend (self-referral) & 1 & 1.7 \\  & I saw an advertisement for the lung function testing & 0 & 0.0 \\  & I was curious & 0 & 0.0 \\  & I am looking for answers to improve my health & 2 & 3.4 \\ \hline Previous lung function test & No & 27 & 45.8 \\  & Yes & 32 & 54.2 \\ \hline  & \textless{}12 months & 19 & 59.4 \\ How long ago was the previous lung & 1–3 years & 8 & 25.0 \\  & function test? (\(n=32\)) & \textgreater{}5–10 years & 1 & 3.1 \\  & \textgreater{}10 years & 4 & 12.5 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Baseline data of participants who had a lung function test.