Table 1.
Baseline characteristics of the sample
| Variable | SWiM-C n = 192 | Standard advice n = 196 | Total sample N = 388 |
|---|---|---|---|
| Mean (SD) age, years | 50.7 (14.3) | 49.9 (13.2) | 50.3 (13.8) |
| Range: 20–86 | Range: 18–78 | Range: 18–86 | |
| Sex | |||
| Women | 151 (78.6) | 152 (77.6) | 303 (78.1) |
| Men | 41 (21.4) | 43 (21.9) | 84 (21.6) |
| Prefer not to say | 0 | 1 (0.5) | 1 (0.3) |
| Ethnicity | |||
| White | 181 (94.3) | 183 (93.4) | 364 (93.8) |
| Non-white | 9 (4.7) | 11 (5.6) | 20 (5.2) |
| None of these | 1 (0.5) | 0 | 1 (0.3) |
| Prefer not to say | 1 (0.5) | 2 (1.0) | 3 (0.8) |
| Education | |||
| Below post-secondary (up to and including A-levels) | 50 (26.0) | 50 (25.5) | 100 (25.8) |
| Post-secondary | 140 (72.9) | 142 (72.5) | 282 (72.7) |
| Other | 2 (1.0) | 3 (1.5) | 5 (1.3) |
| Prefer not to say | 0 | 1 (0.5) | 1 (0.3) |
| Marital status | |||
| Single | 31 (16.1) | 36 (18.4) | 67 (17.3) |
| Married/civil partnership/cohabiting | 140 (72.9) | 140 (71.4) | 280 (72.1) |
| Widowed/separated/divorced | 21 (10.9) | 5 (9.2) | 39 (10.1) |
| Prefer not to say | 0 | 2 (1.0) | 2 (0.5) |
| Mean (SD) weight, kg | 98.5 (21.6) | 98.1 (25.1) | 98.3 (23.4) |
| Mean (SD) height, cm | 168.1 (7.7) | 166.9 (8.4) | 167.5 (8.0) |
| Mean (SD) BMI, kg/m2 | 34.7 (7.2) | 35.0 (8.2) | 34.8 (7.7) |
| BMI category (kg/m2) | |||
| 25-<30 | 54 (28.3) | 61 (31.1) | 77 (19.9) |
| 30-<40 | 99 (51.8) | 96 (49.0) | 195 (50.4) |
| 40+ | 38 (19.9) | 39 (19.9) | 77 (19.9) |
| Missing | 1 (0.5) | 0 | 1 (0.3) |
Values are n (%) unless stated otherwise.