Table 2 Primary intention-to-treat analyses of primary and secondary outcomes at 6 months for participants providing data
Waiting list control group | Intervention group | Between group difference* | p-value | |||
|---|---|---|---|---|---|---|
Baseline n = 157 unless indicated | 6-months n = 144 unless indicated | Baseline n = 157 unless indicated | 6-months n = 141 unless indicated | Mean (95% CI) or odds ratio (OR) (95% CI) where indicated | ||
Primary outcome | ||||||
Weight loss (kg) | n/a | −0.10 (3.03) | n/a | −1.91 (4.49) | −1.72 (−2.59 to − 0.85) | <0.001 |
Secondary weight-related outcomes | ||||||
N (%) > 3% weight loss | n/a | 23 (16) | n/a | 46 (33) | OR = 2.53 (1.41 to 4.52) | 0.002 |
N (%) > 5% weight loss | n/a | 12 (8) | n/a | 29 (21) | OR = 2.83 (1.36 to 5.90) | 0.006 |
Mean (SD) BMI (kg/m2) | 31.56 (4.39) | 31.58 (4.60) | 31.85 (4.66) | 31.07 (4.53) | −0.64 (−0.95 to − 0.33) | <0.001 |
Mean (SD) waist circumference (cm) | 104.80 (11.28) | 104.11 (11.48) | 104.85 (12.62) | 102.36 (12.50) | −1.36 (−2.36 to −0.36) | 0.008 |
Other secondary objective outcomes | ||||||
Mean (SD) HbA1c (mmol/mol) | 39.69 (2.73) | 40.18a (3.22) | 39.88 (3.06) | 39.71 (5.70) | −0.76 (−1.73 to 0.21) | 0.124 |
Mean (SD) blood pressure systolic (mmHg) | 137.58 (18.82) | 138.44 (17.20) | 136.22 (17.10) | 136.91 (17.48) | −0.51 (−3.69 to 2.67) | 0.752 |
Mean (SD) blood pressure diastolic (mmHg) | 79.83 (10.60) | 79.85 (9.33) | 78.97 (10.37) | 78.21 (9.77) | −0.81 (−2.62 to 1.01) | 0.383 |
Mean (SD) total mins moderate-vigorous activity (MVPA) per week | 318.67b (176.07) | 312.95c (207.80) | 337.34d (189.12) | 332.05e (206.24) | −11.22 (−48.21 to 25.78) | 0.551 |
Mean (SD) total mins MVPA in 10+ min bouts per week | 73.55b (96.67) | 79.57c (127.99) | 80.09d (116.85) | 82.45e (130.36) | −8.23 (−30.92 to 14.46) | 0.475 |
N (%) meeting recommendation for 150 mins MVPA in 10+ min bouts per week | 22b (16) | 20c (19) | 25d (17) | 20e (18) | OR = 0.72 (0.31 to 1.68) | 0.448 |
Secondary self-reported outcomes | ||||||
Dietary behaviour fat subscale scores (0 to 3, lower better) | 1.95f (0.39) | 1.92g (0.33) | 1.94 (0.30) | 1.81h (0.33) | −0.11 (−0.18 to −0.05) | 0.001 |
Dietary behaviour fibre subscale score (0 to 3, higher better) | 2.17f (0.40) | 2.19g (0.42) | 2.17 (0.38) | 2.30h (0.38) | 0.12 (0.05 to 0.20) | 0.001 |
Mean (SD) health rating (0–100, higher better) | 75.09i (17.37) | 73.65j (18.49) | 72.78k (19.95) | 77.24h (16.66) | 4.48 (0.85 to 8.11) | 0.016 |
Mean (SD) life satisfaction rating (0–10, higher better) | 7.43i (1.90) | 7.48j (1.96) | 7.65 (2.03) | 7.73h (1.74) | 0.14 (−0.18 to 0.46) | 0.385 |
Mean (SD) mental well-being scores (0–35, higher better) | 24.88f (5.09) | 24.07h (5.02) | 24.82 (4.69) | 24.99h (3.89) | 0.04 (−0.21 to 0.28) | 0.761 |