Table 1.

Demographic and tumour characteristics of study participants with non-small cell lung cancer

Characteristic	n	% (N = 894)
Age at diagnosis, years
45–64	195	21.8
65–79	453	50.7
80+	246	27.5
Sex
Female	385	43.1
Male	509	56.9
Remoteness of residence
Major cities	477	53.4
Inner regional	314	35.1
Outer regional/remote	103	11.5
Area-based socioeconomic status
Least disadvantaged quintile	137	15.3
Quintile 2	147	16.4
Quintile 3	176	19.7
Quintile 4	256	28.6
Most disadvantaged quintile	178	19.9
Smoking status at enrolmenta
Current smoker	217	24.3
Ex-smoker	524	58.6
Never smoked regularly	150	16.8
Extent of disease at diagnosis
Localised	173	19.4
Regional	204	22.8
Distant	417	46.6
Unknown	100	11.2
Best method of diagnosis
Histopathologically verified	642	71.8
Cytology	169	18.9
Clinical/imaging/biochemistry	83	9.3
Charlson comorbidity score
0	682	76.3
1	130	14.5
≥2	82	9.2

^aExcludes people with unknown smoking status