Table 3.
Mean characteristics of participants by quartile of factor score for dietary patterns identified with engagement in Slimming World (T1)*
| Characteristics | Component 1 | Component 2 | Component 3 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High meat | HFSS products | Nuts and oils | ||||||||||
| Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | Q1 | Q2 | Q3 | Q4 | |
| Number of subjects (n) | 81 | 82 | 81 | 81 | 81 | 82 | 81 | 81 | 81 | 81 | 82 | 81 |
| Length of membership (weeks) | 3·4 | 3·2 | 3·4 | 3·2 | 3·2 | 3·2 | 3·9 | 2·8 | 4·0 | 3·2 | 3·5 | 2·5§ |
| Energy (KJ (kcal/d)) | 9878 (2361) | 7694 (1839) | 6878 (1644) | 6899 (1649)† | 7251 (1733) | 7364 (1760) | 7632 (1824) | 9113 (2178)† | 7058 (1687) | 7312 (1748) | 7485 (1789) | 9498 (2270)‡ |
| Age on questionnaire completion (years) | 42·6 | 43·7 | 42·0 | 41·5 | 46·0 | 44·6 | 41·5 | 37·5† | 39·9 | 40·9 | 44·4 | 44·5‡ |
| Weight now (kg) | 92·3 | 93·6 | 89·7 | 95·7 | 88·1 | 92·3 | 94·2 | 96·8‡ | 93·5 | 93·8 | 93·4 | 90·7 |
| BMI now (kg/m2) | 33·9 | 33·7 | 33·0 | 35·0 | 32·3 | 33·9 | 34·3 | 35·2‡ | 34·3 | 34·5 | 34·1 | 32·9 |
| Percentage weight loss (%) | –2·9 | –3·4 | –3·4 | –3·3 | –4·1 | –2·8 | –4·0 | –2·2‡ | –3·8 | –3·1 | –3·4 | –2·8 |
| Current smokers (%) | 7·5 | 4·9 | 6·0 | 13·9 | 11·3 | 8·5 | 7·5 | 7·5 | 11·4 | 9·9 | 6·2 | 7·4 |
| Exercise (frequency/week) | 8·9 | 9·0 | 7·6 | 8·7 | 9·5 | 8·3 | 8·6 | 7·8 | 7·3 | 8·6 | 9·1 | 9·1‡ |
| Employed (%) | 74·1 | 79·3 | 77·2 | 77·5 | 78·8 | 69·5 | 75·0 | 85·0 | 77·5 | 74·1 | 81·3 | 75·3 |
| Vitamin and mineral supplement use (%) | 40·5 | 45·1 | 35·4 | 31·3 | 38·8 | 34·6 | 33·3 | 46·2 | 36·3 | 35·4 | 36·3 | 44·4 |
| Breakfast (%) | ||||||||||||
| Always | 80·2 | 87·8 | 95·1 | 77·1 | 91·4 | 89·0 | 82·1 | 74·7‖ | 82·7 | 84·8 | 87·8 | 90·1 |
| Sometimes | 9·9 | 7·3 | 2·5 | 13·6 | 6·2 | 3·7 | 12·6 | 13·3 | 9·9 | 10·1 | 9·8 | 3·7 |
| Never | 9·9 | 4·9 | 2·5 | 3·7 | 2·5 | 7·3 | 4·8 | 12·6 | 7·4 | 5·1 | 2·4 | 6·2 |
| Fibre (g/d) | 40·8 | 32·1 | 29·3 | 27·5† | 33·5 | 32·5 | 31·4 | 32·4 | 30·3 | 30·4 | 31·2 | 37·8 |
| Free sugar (% total kcal) | 9·5 | 8·7 | 8·2 | 8·4‡ | 8·3 | 7·7 | 9·1 | 9·9† | 8·9 | 8·5 | 8·8 | 8·7 |
HFSS, high fat, salt and sugar; Q, quartile.
P-values < 0·05 were considered as significant. Exercise expressed as total frequency of vigorous and moderate physical activity and walking events lasting for at least 10 min/event per week.
P for trend < 0·001 calculated using Jonckheere–Terpstra test.
P for trend 0·001 < P < 0·025 calculated using Jonckheere–Terpstra test.
P for trend 0·025 < P < 0·05 calculated using Jonckheere–Terpstra test.
Chi square test of independence of factor quartile against category of breakfast consumption, P < 0·025, for all categories of breakfast consumption.
Otherwise no significant P for trend.