Table 1
Distribution of sociodemographic variables
Non-patient
Patient
Total
Class I–III
Class IV–V
Class I–III
Class IV–V
Male
20–39
53
50
51
55
209
40–64
51
52
50
50
203
⩾65
53
49
49
51
202
Female
20–39
54
56
53
55
218
40–64
52
49
57
60
218
⩾65
49
50
54
55
208
Total
312
306
314
326
1258