Characteristics of participants randomised
| Characteristic | Intervention (n = 106) | Control (n = 106), n (%) |
|---|---|---|
| Practice A, n (%) | 51 (48) | 51 (48) |
| Practice B, n (%) | 55 (52) | 55 (52) |
| Male, n (%) | 61 (58) | 64 (61) |
| Mean age, years (SD) | 64.2 (6.0) | 64.6 (7.0) |
| Current smoker, n (%) | 45 (42) | 55 (52) |
| Chronic obstructive pulmonary disease, n (%) | 30/102 (29) | 23/104 (22) |
| MRC dyspnoea grade, n (%) | ||
| 0: no shortness of breath | 9 (8) | 7 (7) |
| 1: only on strenuous exercise | 21 (20) | 29 (27) |
| 2: on hurrying or walking up slight hill | 42 (40) | 32 (30) |
| 3: makes walking slower or with stops | 16 (15) | 8 (8) |
| 4: stops after 100 yards on level | 16 (15) | 28 (26) |
| 5: housebound with breathlessness | 2 (2) | 2 (2) |
| Employment, n (%) | ||
| Full time | 17 (17) | 16 (15) |
| Part-time work | 9 (9) | 10 (10) |
| Unemployed | 4 (4) | 4 (4) |
| Retired | 58 (58) | 56 (54) |
| Other, such as invalid/disabled/carer | 12 (12) | 18 (17) |
| Missing | 6 | 2 |
| Highest educational qualification, n (%) | ||
| School leaving certificate to A level | 28 (29) | 33 (31) |
| Vocational/technical qualifications | 21 (21)) | 20 (19) |
| University degree | 5 (5) | 4 (4) |
| Other | 9 (9) | 10 (10) |
| None of these | 35 (34) | 38 (36) |
| Missing | 8 | 1 |
| Scottish Index of Multiple Deprivation, n (%) | ||
| 1: most deprived | 23 (22) | 20 (19) |
| 2 | 27 (25) | 38 (36) |
| 3 | 23 (22) | 23 (22) |
| 4 | 16 (15) | 10 (9) |
| 5: least deprived | 17 (16) | 15 (14) |
| Home ownership, n (%) | ||
| Own home | 66 (65) | 59 (59) |
| Rent home | 31 (31) | 41 (41) |
| Other | 4 (4) | 6 (6) |
| Missing | 5 (5) | – |
| Living arrangements, n (%) | ||
| Alone | 30 (29) | 37 (35) |
| With spouse/partner | 62 (60) | 67 (63) |
| With other family | 7 (7) | 2 (2) |
| Other | 4 (4) | 0 (0) |
| Missing | 3 (3) | – |
MRC = Medical Research Council. SD = standard deviation.