Table 2.
Study population characteristics at baseline in the longitudinal data analyses1 (n = 638)
| Control group (n = 332) | Intervention group (n = 306) | |||
|---|---|---|---|---|
| Participants within trials, n (%) | ||||
| Trial by Ayala et al. | 170 | (51.2) | 173 | (56.5) |
| Trial by Vogel et al. | 51 | (15.4) | 46 | (15.0) |
| Trial by Stuber et al. | 111 | (33.4) | 87 | (28.4) |
| Educational attainment,2 n (%) | ||||
| Lower | 228 | (68.7) | 204 | (66.7) |
| Higher | 104 | (31.3) | 102 | (33.3) |
| Sex, n (%) | ||||
| Females | 251 | (75.6) | 236 | (77.1) |
| Males | 81 | (24.4) | 70 | (22.9) |
| Age, n (%) | ||||
| Younger adults (18–55 years) | 217 | (65.4) | 229 | (74.8) |
| Older adults (> 55 years) | 115 | (34.6) | 77 | (25.2) |
| Age, mean (SD) | 47.6 | (13.9) | 45.4 | (13.1) |
| Number of persons purchased groceries for, median [IQR] | 4.0 | [3.0] | 4.0 | [3.0] |
| Percentage fruit and vegetable purchases of total purchases, median [IQR] | 25.0 | [19.3] | 25.0 | [22.6] |
| Z-score of diet quality3, mean (SD) | -0.0 | (1.0) | -0.1 | (1.0) |
1Longitudinal analysis includes data from three of the included trials; 2Lower = low and medium level educational attainment, higher = higher educational attainment; 3Based on n = 496 due to absence of comparable diet quality data in Ayala et al. trial