Table 3 Baseline characteristics of sub-sample of service users by trial arm
| Â | Intervention | Control | External control | Combined control |
|---|---|---|---|---|
All participants (n) | 52 | 16 | 53 | 69 |
Age in years mean (SD) | 35.8 (12.6) | 34.8 (8.1) | 34.2 (11.1) | 34.3 (10.4) |
Ethnicity n (%) | Â | Â | Â | Â |
   Bangladeshi | 8 (15.4) | 9 (56.3) | 17 (32.1) | 26 (37.7) |
   Pakistani | 44 (84.6) | 7 (43.8) | 36 (67.9) | 43 (62.3) |
Marital status n (%) | Â | Â | Â | Â |
   Single | 18 (34.6) | 5 (31.3) | 20 (37.7) | 25 (36.2) |
   Separated | 1 (1.9) | 0 (0) | 2 (3.8) | 2 (2.9) |
   Married living with partner | 28 (53.8) | 11(68.8) | 31 (58.5) | 42 (60.9) |
   Unknown | 5 (9.6) | 0 (0) | 0 (0) | 0 (0) |
Partner's smoking status n (%) | Â | Â | Â | Â |
   Smoker | 1 (1.9) | 2 (12.5) | 3 (5.7) | 5 (7.2) |
   Non-smoker | 33 (63.5) | 13 (81.3) | 42 (79.2) | 55 (79.7) |
   No partner | 8 (15.4) | 1 (6.3) | 6 (11.3) | 7 (10.1) |
   Unknown | 10 (19.2) | 0 (0) | 2 (3.8) | 2 (2.9) |
Employment | Â | Â | Â | Â |
   In paid employment | 18 (34.6) | 11 (68.8) | 27 (50.9) | 38 (55.1) |
   Unemployed | 24 (46.2) | 3 (18.8) | 21 (39.6) | 24 (34.8) |
   Pensioner | 0 (0) | 0 (0) | 1 (1.9) | 1 (1.4) |
   Full time student | 5 (9.6) | 2 (12.5) | 4 (7.5) | 6 (8.7) |
   Unknown | 5 (9.6) | 0 (0) | 0 (0) | 0 (0) |
Type of Work n (%) | Â | Â | Â | Â |
   Manual | 29 (55.8) | 9 (56.3) | 37 (69.8) | 46 (66.7) |
   Clerical secretarial | 4 (7.7) | 0 (0) | 3 (5.7) | 3 (4.3) |
   Managerial professional | 6 (11.5) | 6 (37.5) | 3 (5.7) | 9 (13.0) |
   Not worked | 5 (9.6) | 1 (6.3) | 6 (11.3) | 7 (10.1) |
   Unknown | 8 (15.4) | 0 (0) | 4 (7.5) | 4 (5.8) |
Highest Education n (%) | Â | Â | Â | Â |
   None | 14 (26.9) | 6 (37.5) | 15 (28.3) | 21 (30.4) |
   GCSE or equivalent | 16 (30.8) | 5 (31.3) | 17 (32.1) | 22 (31.9) |
   A-level or equivalent | 8 (15.4) | 2 (12.5) | 10 (18.9) | 12 (17.4) |
   Degree or equivalent | 5 (9.6) | 2 (12.5) | 6 (11.3) | 8 (11.6) |
   Other | 3 (5.8) | 0 (0) | 5 (9.4) | 5 (7.2) |
   Unknown | 6 (11.5) | 1 (6.3) | 0 (0) | 1 (1.4) |
FTND* mean (SD) | 4.4 (2.7) | 4.4 (2.1) | 4.6 (2.4) | 4.6 (2.3) |
Age of starting smoking in years mean (SD) | 17.6 (6.5) | 18.1 (4.3) | 17.6 (5.2) | 17.7 (5.0) |
Cigarettes per day mean (SD) | 15 (10) | 16 (5) | 17 (7) | 17 (7) |
Number past quit attempts mean (SD) | 1 (1) | 1 (1) | 1 (1) | 1 (1) |
Maximum length of previous quit attempt in days, median (range) | 21 (1-336) | 14 (1-168) | 21 (1-672) | 21 (1-672) |