Table 2.
Odds ratios (OR) for high perceived stress by quartiles of specific types of fruit
| Per SD | Fruit intake quartiles | ||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | ||
| Apples and pears | 76 g increase | n = 2162 | n = 2165 | n = 2153 | n = 2160 |
| Average intake (g/day) | 7 (7, 8) | 28 (27, 28) | 66 (65, 66) | 168 (162, 174) | |
| High stress, n (%) | 599 (34%) | 582 (29%) | 510 (25%) | 453 (25%) | |
| Model 11 | 0.86 (0.79, 0.94) | Ref | 0.81 (0.59, 1.13) | 0.64 (0.48, 0.86) | 0.64 (0.51, 0.81) |
| Model 22 | 0.89 (0.81, 0.97) | Ref | 0.76 (0.52, 1.10) | 0.68 (0.49, 0.94) | 0.69 (0.53, 0.90) |
| Orange and other citrus | 50 g increase | n = 2162 | n = 2165 | n = 2153 | n = 2160 |
| Average intake (g/day) | 2 (2, 2) | 12 (12, 12) | 34 (33, 34) | 112 (108, 116) | |
| High stress, n (%) | 600 (31%) | 610 (30%) | 549 (29%) | 425 (23%) | |
| Model 11 | 0.90 (0.83, 0.97) | Ref | 0.98 (0.81, 1.19) | 0.93 (0.74, 1.18) | 0.68 (0.56, 0.82) |
| Model 22 | 0.95 (0.89, 1.02) | Ref | 0.88 (0.71, 1.01) | 0.90 (0.71, 1.14) | 0.75 (0.64, 0.89) |
| Bananas | 35 g increase | n = 2166 | n = 2161 | n = 2155 | n = 2158 |
| Average intake (g/day) | 4 (4, 4) | 16 (16, 16) | 36 (36, 37) | 84 (82, 86) | |
| High stress, n (%) | 620 (33%) | 604 (31%) | 530 (27%) | 430 (22%) | |
| Model 11 | 0.83 (0.76, 0.90) | Ref | 0.89 (0.71, 1.13) | 0.74 (0.64, 0.85) | 0.59 (0.51, 0.68) |
| Model 22 | 0.92 (0.85, 0.98) | Ref | 0.93 (0.74, 1.19) | 0.86 (0.72, 1.03) | 0.76 (0.64, 0.89) |
Odds ratios (ORs) and 95% confidence intervals (95% CI) obtained using the survey command for logistic regression. Fruit intake (g/d) is shown as mean and 95% CI. Lower stress represents Q1 to Q3; High stress represents Q4. Analyses were adjusted according to the following models: model 11, unadjusted; and model 22, multivariable-adjusted (confounding factors included age, sex, BMI [body mass index], energy intake, relationship status, physical activity, level of education, SEIFA [Socio-economical index for areas], smoking status, diabetes and history of cardiovascular disease). Numbers in bold are significantly different from Q1 (p < 0.05)