Table 1.
Baseline demographic characteristics including smoking status and smoking history. Values are mean (SD) unless stated otherwise
| Very low energy diet (n=137) | Control (n=150) | |
|---|---|---|
| Age (years) | 46.9 (7.0) | 46.8 (6.9) |
| Height (cm) | 166 (6.0) | 167 (6.2) |
| Body mass index | 26.7 (2.2) | 26.9 (2.3) |
| Blood pressure (mm Hg) | 125/80 (18/11) | 128/81 (18/11) |
| Heart rate (beats/min) | 77 (9.3) | 76 (9.4) |
| Waist:hip ratio | 0.82 (0.06) | 0.82 (0.06) |
| Age started smoking (years) | 16.1 (3.0) | 16.5 (3.3) |
| Years smoked | 29.6 (6.9) | 28.1 (7.4) |
| Cigarettes smoked/day | 20.0 (6.3) | 19.1 (6.2) |
| Expired carbon monoxide (ppm) | 18.6 (9.1) | 18.2 (7.9) |
| Saliva cotinine (ng/ml) | 303.3 (145.5) | 269.9 (124.9) |
| Fagerström tolerance questionnaire | 5.9 (2.2) | 5.8 (1.8) |
| No (%) tried to quit smoking ⩾3 times | 98 (72) | 101 (68) |
| No (%) used nicotine replacement therapy before | 105 (77) | 105 (70) |
| Niicotine gum | 83 (61) | 76 (51) |
| Nicotine patch | 68 (50) | 68 (45) |
| No (%) with another smoker in household | 36 (26) | 44 (29) |
| No (%) quite or extremely sure of succeeding this time | 106 (77) | 110 (74) |
| No (%) gained 3-10 kg last time tried to quit | 95 (69) | 111 (74) |
| No (%) gained >10 kg last time tried to quit | 27 (20) | 29 (19) |
| No (%) tried to lose weight before | 129 (94) | 147 (98) |
| No (%) tried to lose weight while stopping smoking | 83 (61) | 110 (74) |