Table 1 Characteristics and purchase behaviour of adolescents (n = 463 questionnaires)
Total study sample | Low level of education | High level of education | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Total | Comparison school | Intervention schools | Total | Comparison school | Intervention schools | Total | Comparison school | Intervention schools | ||
Total number of questionnaires | n | 463 | 108 | 355 | 166 | 63 | 103 | 297 | 45 | 252 |
Sex | n (%) | |||||||||
Girls | 262 (56.6) | 60 (55.6) | 202 (56.9) | 74 (44.6) | 28 (44.4) | 46 (44.7) | 127 (42.8) | 20 (44.4) | 107 (42.5) | |
Boys | 201 (43.4) | 48 (44.4) | 153 (43.1) | 92 (55.4) | 35 (55.6) | 57 (55.3) | 170 (57.2) | 25 55.6) | 145 (57.5) | |
Age (years) | m (SD) | 12.79 (0.94) | 12.57 (0.64) | 12.86 (1.00) | 13.10 (1.10) | 12.52 (0.56) | 13.45 (1.19) | 12.62 (0.79) | 12.64 (0.74) | 12.62 (0.80) |
School year | n (%) | |||||||||
First | 305 (65.9) | 87 (80.6) | 222 (62.5) | 166 | 63 (100) | 103 (100) | 144 (48.5) | 25 (55.6) | 119 (47.2) | |
Second | 158 (34.1) | 21 (19.4) | 133 (37.5) | - | - | - | 153 (51.5) | 20 (44.4) | 133 (52.8) | |
Frequency food and drink purchased in the supermarket near school | n (%) | |||||||||
Rarely/never | 240 (51.8) | 36 (33.3) | 204 (57.5) | 37 (22.3) | 14 (22.2) | 23 (22.3) | 203 (68.3) | 22 (48.9) | 181 (71.8) | |
1-2 days per week | 122 (26.3) | 42 (38.9) | 80 (22.5) | 55 (33.1) | 26 (41.3) | 29 (28.2) | 67 (22.5) | 16 ((35.5) | 51 (20.2) | |
3-5 days per week | 101 (21.8) | 30 (27.8) | 71 (20.0) | 74 (44.6) | 23 (36.5) | 51 (49.5) | 27 (9.1) | 7 (15.5) | 20 (8.0) | |
Money spent on food at supermarket on average per day | Median (IQR) | 2.0 (2.0) | 1.8 (1.0) | 2.0 (2.0) | 2.0 (2.0) | 2.0 (2.0) | 2.5 (1.0) | 2.0 (2.0) | 1.35 (1.0) | 2.0 (2.0) |