Table 2.
Comparison of demographics between groups in the Green Eating (GE) Project, a web-based intervention to promote environmentally conscious eating behaviours in US university students aged 18–24 years
| Experimental (n 241) | Control (n 367) | Total (n 607) | |||||
|---|---|---|---|---|---|---|---|
| Mean | sd | Mean | sd | Mean | sd | F | |
| Age (years) | 18·81 | 0·97 | 18·92 | 1·11 | 18·88 | 1·06 | 0·12 |
| BMI (kg/m2) | 23·80 | 3·60 | 23·95 | 4·14 | 23·88 | 3·94 | 0·81 |
| Fruit and vegetables (cups/d) | 3·24 | 1·48 | 3·35 | 1·48 | 3·31 | 1·48 | 0·00 |
| n | % | n | % | n | % | χ2 | |
| Gender | |||||||
| Male | 66 | 27·4 | 69 | 18·9 | 135 | 22·2 | 5·64* |
| Female | 175 | 72·6 | 297 | 81·1 | 472 | 77·8 | |
| Race | |||||||
| White | 202 | 83·8 | 310 | 84·7 | 512 | 84·3 | 0·03 |
| Non-white | 39 | 16·2 | 56 | 15·3 | 95 | 15·7 | |
| Year | |||||||
| Freshman | 110 | 45·6 | 137 | 37·4 | 247 | 40·7 | 4·10* |
| Non-freshman | 131 | 54·4 | 229 | 62·6 | 360 | 59·3 | |
| Red meat consumption | |||||||
| Never | 47 | 19·7 | 76 | 20·9 | 123 | 20·4 | 6·9 |
| 1–3 times/week | 143 | 59·8 | 244 | 67·0 | 387 | 64·2 | |
| 4–6 times/week | 42 | 17·6 | 39 | 10·7 | 81 | 13·4 | |
| ≥7 times/week | 7 | 2·9 | 5 | 1·4 | 12 | 2·0 | |
| Interest in GE | |||||||
| Not at all | 8 | 3·3 | 11 | 3·0 | 19 | 3·1 | 1·87 |
| Somewhat | 41 | 17·1 | 62 | 16·9 | 103 | 17·0 | |
| Don’t care either way | 20 | 8·3 | 30 | 8·2 | 50 | 8·3 | |
| Moderately | 118 | 49·2 | 165 | 45·1 | 283 | 46·7 | |
| Extremely | 53 | 22·1 | 98 | 26·8 | 151 | 24·9 | |
| Stage of change for GE | |||||||
| Precontemplation | 65 | 27·9 | 101 | 28·0 | 166 | 27·9 | 5·43 |
| Contemplation | 84 | 35·7 | 124 | 34·3 | 208 | 34·9 | |
| Preparation | 34 | 14·5 | 39 | 10·8 | 73 | 12·2 | |
| Action | 18 | 7·7 | 47 | 13·0 | 65 | 10·9 | |
| Maintenance | 34 | 14·5 | 50 | 13·9 | 86 | 14·1 | |
*P<0·05, **P<0·01, ***P<0·001.