Table 1.
Crucifer lovers (n 95) | Average consumers (n 386) | Frozen vegetable users (n 239) | Total (n 756) | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Mean | sd | Mean | sd | Mean | sd | Mean | sd | F (2, 717) | d | |
Canned tomatoes | 1·38a | 1·19 | 1·33a | 1·02 | 0·88b | 0·84 | 1·17 | 1·06 | 19·02* | 0·46 |
Frozen potatoes | 0·11b | 0·77 | 0·28b | 0·69 | 0·59a | 0·91 | 0·47 | 0·79 | 11·94* | 0·37 |
Frozen mixed vegetables | 0·89b | 1·36 | 0·86b | 1·19 | 1·33a | 1·47 | 1·05 | 1·32 | 8·17* | 0·30 |
Fresh potatoes | 2·95a | 1·55 | 2·71a | 1·31 | 1·37b | 1·27 | 2·25 | 1·52 | 102·58* | 1·07 |
Fresh tomatoes | 3·01a | 1·40 | 2·68a | 1·17 | 2·26b | 1·38 | 2·56 | 1·30 | 12·87* | 0·38 |
Broccoli | 2·54a | 1·27 | 2·20b | 1·08 | 0·99c | 0·92 | 1·81 | 1·26 | 149·55* | 1·29 |
Mushrooms | 2·28a | 1·40 | 2·09a | 1·15 | 0·73b | 0·88 | 1·62 | 1·31 | 146·62* | 1·28 |
Asparagus | 1·25a | 1·29 | 0·72b | 0·92 | 0·10c | 0·46 | 0·57 | 0·92 | 59·75* | 0·40 |
Brussels sprouts | 2·24a | 0·75 | 0·18b | 0·42 | 0·01c | 0·30 | 0·44 | 0·83 | 905·74* | 3·18 |
d, Cohen’s d effect size.
Thirty-six participants were not classified into any cluster because of missing values on the frequency of serving one or more vegetables. For each vegetable, participants were asked ‘How often did you serve foods prepared from _____ in your household during the last two weeks?’ The response options included ‘I have never served foods prepared from ____ in my life’ (−1), ‘I have not served foods prepared from _____ in last two weeks’ (0), ‘once’ (1), ‘2–3 times’ (2), ‘4–5 times’ (3), ‘6–7 times’ (4), ‘almost every day’ (5). Response to this item was recoded to the number in parentheses next to each response option.
a,b,cMean values within a row with unlike superscript letters were significantly different based on Hochberg’s GT2 test (P≤0·01).
Significant F statistic: *P<0·05.