Table 4 Study outcomes and effect sizes for differences at baseline to midpoint and baseline to follow-up
|  | Baseline | Midpoint (week 10) | Cohen’s da | Follow-up (week 21) | Cohen’s db |
|---|---|---|---|---|---|
Gardening confidence, mean (95% CI)c | 7.1 (6.4, 7.9) | 8.6 (8.2, 9.1) | 0.89 | 9.0 (8.6, 9.5) | 1.15 |
Gardening enjoyment, mean (95% CI) | 6.3 (5.9, 6.7) | 7.2 (6.9, 7.6) | 0.90 | 7.5 (7.1, 7.9) | 1.69 |
Cooking self-efficacy, mean (95% CI) | 4.7 (4.3, 5.1) | 6.8 (6.5, 7.2) | 2.10 | 7.7 (7.3, 8.0) | 3.00 |
Nutrition knowledge score, mean (95% CI) | 23.3 (22.8, 23.8) | 23.6 (23.0, 24.2) | 0.21 | 23.8 (23.3, 24.3) | 0.37 |
Dietary intake per day | |||||
 Fruit and vegetable intake (cup equivalents), mean (95% CI)d | 2.4 (2.2, 2.7) | - | - | 2.8 (2.6, 3.1) | 0.73 |
 Fiber (g), mean (95% CI) | 15.5 (14.5, 16.5) | - | - | 16.8 (15.7, 17.9) | 0.45 |
 Dairy intake (cups), mean (95% CI) | 1.5 (1.4, 1.7) | - | - | 1.3 (1.2, 1.4) | 0.53 |
 Total sugars (teaspoons), mean (95% CI) | 15.2 (13.1, 17.4) | - | - | 13.4 (12.1, 14.7) | 0.38 |
 Added sugars (teaspoons), mean (95% CI) | 5.7 (3.9, 7.4) | - | - | 4.8 (4.2, 5.4) | 0.26 |
 Whole grains (g), mean (95% CI) | 0.7 (0.6, 0.8) | - | - | 0.7 (0.6, 0.8) | 0.00 |
 Calcium (mg), mean (95% CI) | 931.3 (862.5, 1000.1) | - | - | 890.4 (844.7, 936.0) | 0.26 |
Physical activity in MET minutes, mean (95% CI) | 3082 (2304.0, 3861.3) | 4229 (2971.5, 5485.8) | 0.41 | 3405 (2375.7, 4435.6) | 0.13 |
Mental health outcomes | |||||
 Perceived stress, mean (95% CI) | 12.5 (9.6, 15.5) | 13.7 (10.9, 16.5) | 0.16 | 11.8 (9.2, 14.4) | 0.09 |
 PROMIS anxiety, mean (95% CI)e | 51.4 (47.5, 55.2) | 49.5 (46.0, 53.1) | 0.19 | 49.0(45.4, 52.6) | 0.24 |
 PROMIS depression, mean (95% CI)e | 50.5 (46.9, 54.1) | 46.9 (43.5, 50.3) | 0.38 | 47.4 (43.7, 51.2) | 0.32 |