Table 2.
Adjusted odds ratios (95% CI) for infrequent fruit consumption, separate analyses for students in low, middle, and high family social classes.
| Low family social class, n = 1141OR (95% CI) | Middle family social class, n = 2478OR (95% CI) | High family social class, n = 1384OR (95% CI) | |
|---|---|---|---|
| Sexa | |||
| Boys versus girls | 1.80 (1.42–2.30)*** | 1.82 (1.54–2.14)*** | 1.60 (1.21–1.98)*** |
|
| |||
| Gradea | |||
| 7th versus 5th | 1.32 (1.00–1.74)* | 1.20 (0.99–1.46) | 1.07 (0.83–1.38) |
| 9th versus 5th | 1.88 (1.38–2.57)*** | 1.16 (0.95–1.43) | 1.50 (1.13–1.99)** |
|
| |||
| Supermarket exposurea | |||
| low versus high | 1.17 (0.89–1.54) | 1.17 (0.97–1.40) | 1.08 (0.80–1.45) |
|
| |||
| Fast food outlet exposurea | |||
| high versus low | 1.32 (0.98–1.76) | 1.18 (0.97–1.43) | 1.23 (0.89–1.69) |
|
| |||
| Interaction supermarket* fast food exposureb | |||
| (i) high, low | 1.0 | 1.0 | 1.0 |
| (ii) low, high | 1.60 (1.02–2.45)* | 1.40 (1.03–1.90)* | 1.45 (0.89–2.38) |
| (iii) low, low | 1.10 (0.78–1.54) | 1.11 (0.88–1.40) | 0.91 (0.64–1.29) |
| (iv) high, high | 1.17 (0.75–1.84) | 1.09 (0.81–1.47) | 0.94 (0.61–1.46) |
aOdds ratios mutually adjusted for sex, grade, and supermarket and fast food outlet exposure.
bAdjusted for sex and grade.
Significant levels at *0.05, **0.01, ***0.001.