Table 2.
Primary outcome and meal micro-structure
| Small plate | Large plate | |||||
|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean Difference | 95% CI | p | Cohen‘s d | |
| Primary outcome | ||||||
| Kilocalories consumed (kcal) | 624.9 (292.3) | 644.1 (265.0) | 19.2 | −76.5, 115.0 | 0.692 | 0.07 |
| Meal micro-structure | ||||||
| Meal duration (min) | 8.6 (4.7) | 8.7 (4.3) | 0.0 | −1.5, 1.6 | 0.953 | 0.01 |
| Number of servings (n) | 1.8 (0.8) | 1.7 (0.7) | −0.2 | - 0.4, 0.1 | 0.186 | −0.24 |
| Amount self-served (g) | 422.6 (192.7) | 443.1 (174.0) | 20.5 | −42.5, 83.5 | 0.521 | 0.11 |
| Amount of food left on the plate (g) | 4.9 (10.5) | 13.5 (28.9) | 8.6 | 1.1, 16.0 | 0.024 | 0.40 |
| Number of bites (n) | 41.6 (23.6) | 38.3 (17.0) | −3.3 | −10.5, 3.9 | 0.366 | −0.16 |
| Average bite size (g) | 11.6 (5.0) | 11.7 (4.3) | 0.2 | −1.5, 1.8 | 0.852 | 0.03 |
| Average bite duration (duration/ bites), (min/n) | 0.2 (0.1) | 0.2 (0.1) | 0.0 | −0.0, 0.0 | 0.573 | 0.10 |
| Bites per minute (bites/duration), (n/min) | 5.2 (2.1) | 4.8 (1.8) | −0.4 | −1.1, 0.3 | 0.216 | −0.22 |