Appendix 9Elaborated demographic data
TABLE 41
Full baseline demographic characteristics of trial participants by centre
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| Participant characteristic | North East Wales (n = 110) | North West Wales (n = 223) | Swansea (n = 107) |
|---|
| number (%) | number (%) | number (%) |
|---|
| Ethnicitya | White | 8 (7) | 88 (40) | 14 (14) |
| White British | 89 (81) | 123 (55) | 79 (74) |
| White Irish | 1 (1) | 5 (2) | |
| Other white background | 9 (8) | 4 (2) | 7 (6) |
| White and black Caribbean | | 1 (0) | |
| Black (British) | 1 (1) | | 1 (1) |
| Caribbean | | | 1 (1) |
| Other Asian background | | 1 (0.5) | |
| Not stated | 2 (2) | 1 (0.5) | 5 (5) |
| Marital statusb | Single (never married) | 17 (16) | 60 (27) | 24 (24) |
| Married (first marriage) | 43 (39) | 73 (33) | 42 (41) |
| Divorced | 19 (17) | 27 (12) | 16 (16) |
| Separated | 4 (4) | 6 (3) | 4 (4) |
| Widowed | 4 (4) | 7 (3) | 4 (4) |
| Cohabiting | 12 (11) | 37 (17) | 5 (5) |
| Remarried | 10 (9) | 11 (5) | 7 (7) |
| Number of dependent childrenc | 0 | 51 (57) | 87 (45) | 31 (53) |
| 1 | 15 (17) | 40 (21) | 15 (26) |
| 2 | 18 (20) | 37 (19) | 6 (10) |
| 3 | 3 (3) | 13 (7) | 4 (7) |
| 4 | 1 (1) | 7 (4) | 2 (3) |
| 5 | 1 (1) | 2 (1) | |
| 6 | | 3 (2) | |
| 7 | | 3 (2) | |
| 8 | | 1 (1) | |
| Employment statusd | Full time employed | 35 (32) | 52 (23) | 22 (22) |
| Part time employed | 14 (13) | 22 (10) | 7 (7) |
| Self-employed full time | 3 (3) | 7 (3) | 2 (2) |
| Self-employed part time | 4 (4) | 4 (2) | 1 (1) |
| Unemployed | 8 (7) | 47 (21) | 14 (14) |
| Retired | 10 (9) | 16 (7) | 22 (22) |
| Student | 2 (2) | 5 (2) | 10 (10) |
| Looking after family/home | 4 (4) | 10 (5) | 4 (4) |
| Permanently sick/disabled | 18 (17) | 32 (14) | 11 (11) |
| Temporarily sick/disabled | 11 (10) | 27 (12) | 9 (9) |
| Smoking statuse | Smoker | 27 (25) | 97 (44) | 38 (37) |
| Non-smoker | 56 (51) | 93 (42) | 45 (44) |
| Ex-smoker | 26 (24) | 32 (14) | 19 (19) |
| Drinking (units/week)f | None | 52 (48) | 78 (35) | 38 (38) |
| 1–7 | 30 (28) | 79 (36) | 27 (27) |
| 8–14 | 16 (15) | 20 (9) | 15 (15) |
| 15–21 | 6 (6) | 12 (5) | 10 (10) |
| 22–35 | 3 (3) | 12 (5) | 7 (7) |
| 36–50 | 2 (2) | 6 (3) | 1 (1) |
| 51 or more | | 14 (6) | 3 (3) |
- a
We did not use ethnicity in the analysis because it provides no useful discrimination and threatens anonymity.
- b
For analysis, recoded as single or missing (109) vs. have a partner (240) vs. had a partner (91).
- c
For analysis, recoded as zero (269) vs. one (70) vs. two (61) vs. three or more (40).
- d
For analysis, recoded as full time (121) vs. part time or in education (124) vs. none (195).
- e
For analysis, recoded as smoking status as non-smoker (201) vs. smoker (162) vs. ex-smoker (77).
- f
For analysis,recoded as none (168) vs. safe (201) vs. less safe or missing (71).
