Background
Methods
Study population
Dietary data processing and analysis
Statistical Analysis
Results
Intakes of fats and fatty acids
High-SES | Low-SES | ||||
---|---|---|---|---|---|
Fats | Mean1
| SE1
| Mean1
| SE1
| P value2
|
Total (n)
| 230 | -- | 219 | -- | -- |
Total fat (g) | 65.7 | 1.0 | 64.6 | 1.0 | 0.435 |
SFA (g) | 23.9 | 0.5 | 22.0 | 0.6 | 0.014* |
MUFA (g) | 22.9 | 0.4 | 22.5 | 0.4 | 0.486 |
PUFA (g) | 13.3 | 0.3 | 14.5 | 0.3 | 0.005* |
Total n-3 (g) | 1.3 | 0.0 | 1.2 | 0.0 | 0.036* |
Total n-6 (g) | 12.0 | 0.3 | 13.3 | 0.3 | 0.001** |
LA, 18:2n-6 (g) | 11.9 | 0.3 | 13.2 | 0.3 | <0.001*** |
ALA, 18:3n-3 (g) | 1.2 | .027 | 1.1 | .027 | 0.045* |
AA, 20:4n-6 (g) | 0.12 | 0.01 | 0.13 | 0.01 | 0.736 |
EPA, 20:5n-3 (g) | 0.010 | 0.002 | 0.008 | 0.002 | 0.455 |
DHA, 22:6n-3 (g) | 0.032 | 0.002 | 0.032 | 0.002 | 0.819 |
Ratio n-6:n-3 | 9.6 | 0.20 | 11.5 | 0.20 | <0.001*** |
Boys (n)
| 111 | -- | 106 | -- | |
Total fat (g) | 68.7 | 1.5 | 63.4 | 1.6 | 0.002** |
SFA (g) | 25.1 | 0.7 | 20.3 | 0.8 | <0.001*** |
MUFA (g) | 23.9 | 0.7 | 22.3 | 0.7 | 0.083 |
PUFA (g) | 13.7 | 0.4 | 15.1 | 0.4 | 0.036* |
Total n-3 (g) | 1.3 | 0.0 | 1.2 | 0.0 | 0.317 |
Total n-6 (g) | 12.4 | 0.4 | 13.8 | 0.4 | 0.019* |
LA, 18:2n-6 (g) | 12.3 | 0.4 | 13.7 | 0.4 | 0.019* |
ALA, 18:3n-3 (g) | 1.23 | 0.04 | 1.19 | 0.04 | 0.440 |
AA, 20:4n-6 (g) | 0.139 | 0.008 | 0.131 | 0.008 | 0.499 |
EPA, 20:5n-3 (g) | 0.012 | 0.003 | 0.008 | 0.003 | 0.367 |
DHA, 22:6n-3 (g) | 0.038 | 0.004 | 0.033 | 0.004 | 0.352 |
Ratio n-6:n-3 | 9.7 | 0.27 | 11.5 | 0.28 | <0.001*** |
Girls (n)
| 119 | -- | 113 | -- | |
Total fat (g) | 63.0 | 1.3 | 65.8 | 1.4 | 0.147 |
SFA (g) | 22.9 | 0.8 | 23.6 | 0.8 | 0.488 |
MUFA (g) | 22.0 | 0.6 | 22.7 | 0.6 | 0.416 |
PUFA (g) | 12.9 | 0.4 | 14.0 | 0.4 | 0.060 |
Total n-3 (g) | 1.3 | 0.0 | 1.2 | 0.0 | 0.055 |
Total n-6 (g) | 11.6 | 0.4 | 12.8 | 0.4 | 0.027* |
LA, 18:2n-6 (g) | 11.5 | 0.4 | 12.8 | 0.4 | 0.018* |
ALA, 18:3n-3 (g) | 1.22 | 0.04 | 1.11 | 0.04 | 0.046* |
AA, 20:4n-6 (g) | 0.109 | 0.007 | 0.121 | 0.007 | 0.235 |
EPA, 20:5n-3 (g) | 0.007 | 0.002 | 0.007 | 0.002 | 0.959 |
DHA, 22:6n-3 (g) | 0.027 | 0.003 | 0.030 | 0.003 | 0.407 |
Ratio n-6:n-3 | 9.4 | 0.29 | 11.6 | 0.30 | <0.001*** |
Dietary Fats | High-SES | Low-SES | P value1
| ||
---|---|---|---|---|---|
Mean | SE | Mean | SE | ||
Total (n)
| 230 | -- | 219 | -- | -- |
Energy, kJ | 8,324 | 176 | 8,174 | 180 | 0.554 |
Total fat, %E | 29.6 | 0.42 | 28.6 | 0.53 | 0.149 |
SFA, %E | 10.8 | 0.22 | 9.6 | 0.28 | <0.001*** |
MUFA, %E | 10.3 | 0.18 | 9.9 | 0.22 | 0.216 |
PUFA, %E | 5.9 | 0.13 | 6.5 | 0.15 | 0.006** |
Total n-3, %E | 0.6 | 0.01 | 0.5 | 0.01 | 0.029* |
Total n-6, %E | 5.4 | 0.12 | 5.9 | 0.14 | 0.002** |
LA, 18:2n-6, %E | 5.3 | 0.12 | 5.9 | 0.14 | 0.001** |
ALA, 18:3n-3, %E) | 0.5 | 0.01 | 0.5 | 0.01 | 0.040* |
AA, 20:4n-6, %E | 0.060 | 0.003 | 0.061 | 0.003 | 0.843 |
EPA, 20:5n-3, %E | 0.005 | 0.001 | 0.004 | 0.001 | 0.495 |
DHA, 22:6n-3, %E | 0.016 | 0.001 | 0.015 | 0.001 | 0.644 |
Cholesterol (mg) | 340 | 13 | 333 | 13 | 0.682 |
Boys (n)
| 111 | -- | 106 | -- | |
Energy, kJ | 8,478 | 272 | 8,347 | 285 | 0.735 |
Total fat, %E | 30.4 | 0.62 | 27.7 | 0.78 | 0.008** |
SFA, %E | 11.1 | 0.33 | 8.7 | 0.36 | <0.001*** |
MUFA, %E | 10.5 | 0.26 | 9.7 | 0.34 | 0.059 |
PUFA, %E | 6.1 | 0.18 | 6.7 | 0.23 | 0.029* |
Total n-3, %E | 0.6 | 0.02 | 0.5 | 0.02 | 0.271 |
Total n-6, %E | 5.5 | 0.17 | 6.2 | 0.21 | 0.015* |
LA, 18:2n-6, %E | 5.4 | 0.17 | 6.1 | 0.21 | .014* |
ALA, 18:3n-3, %E) | 0.5 | 0.02 | 0.5 | 0.02 | .436 |
AA, 20:4n-6, %E | 0.068 | 0.004 | 0.062 | 0.004 | 0.348 |
EPA, 20:5n-3, %E | 0.006 | 0.002 | 0.004 | 0.001 | 0.404 |
DHA, 22:6n-3, %E | 0.020 | 0.002 | 0.016 | 0.002 | 0.196 |
Cholesterol (mg) | 377 | 20.3 | 354 | 20.4 | 0.432 |
Girls
| 119 | -- | 113 | -- | |
Energy, kJ | 8,318 | 234 | 8,150 | 230 | 0.611 |
Total fat, %E | 28.8 | 0.56 | 29.4 | 0.71 | 0.485 |
SFA, %E | 10.5 | 0.28 | 10.5 | 0.41 | 0.994 |
MUFA, %E | 10.0 | 0.25 | 10.1 | 0.29 | 0.093 |
PUFA, %E | 5.8 | 0.18 | 6.3 | 0.21 | 0.841 |
Total n-3, %E | 0.6 | 0.02 | 0.5 | 0.02 | 0.052 |
Total n-6, %E | 5.2 | 0.17 | 5.8 | 0.19 | 0.046* |
LA, 18:2n-6, %E | 5.2 | 0.17 | 5.7 | 0.19 | .034* |
ALA, 18:3n-3, %E) | 0.6 | 0.02 | 0.5 | 0.02 | .040* |
AA, 20:4n-6, %E | 0.053 | 0.004 | 0.060 | 0.004 | 0.227 |
EPA, 20:5n-3, %E | 0.004 | 0.001 | 0.004 | 0.001 | 0.968 |
DHA, 22:6n-3, %E | 0.013 | 0.002 | 0.015 | 0.001 | 0.414 |
Cholesterol (mg) | 306 | 14.5 | 313 | 16.9 | 0.767 |
Nutrient | High-SES | Low-SES | OR4
| 95% CI4
| |
---|---|---|---|---|---|
% | % | Lower | Upper | ||
Total (n = 449)
|
n = 230
|
n = 219
| |||
Total fat >30 %E | 49.1 | 43.8 | 0.82 | 0.56 | 1.19 |
SFA ≥10 %E | 53.5 | 40.2** | 0.59 | 0.40 | 0.86 |
PUFA >10 %E | 3.5 | 7.8 | 2.30 | 0.97 | 5.45 |
PUFA <6 %E | 53.9 | 45.7 | 0.70 | 0.48 | 1.02 |
Total n-6 <5%E | 45.0 | 35.6* | 0.65 | 0.44 | 0.96 |
Total n-6 >8 %E | 7.4 | 16.4** | 2.48 | 1.34 | 4.56 |
Total n-3 <1 %E | 97.8 | 97.2 | 0.81 | 0.24 | 2.71 |
Ratio n-6:n-3 >82
| 72.6 | 90.9*** | 3.90 | 2.26 | 6.76 |
Cholesterol ≥300 mg3
| 55.2 | 50.2 | 0.83 | 0.57 | 1.21 |
Boys (n = 217)
|
n = 111
|
n = 106
|
--
| -- | -- |
Total fat >30 %E | 57.7 | 40.6* | 0.5 | 0.29 | 0.87 |
SFA ≥10 %E | 57.7 | 34.0*** | 0.37 | 0.12 | 0.65 |
PUFA >10 %E | 3.6 | 10.4 | 3.06 | 0.94 | 9.98 |
PUFA <6 %E | 53.2 | 41.5 | 0.61 | 0.36 | 1.05 |
Total n-6 <5%E | 43.2 | 33.0 | 0.63 | 0.36 | 1.10 |
Total n-6 >8 %E | 9.9 | 18.9 | 2.12 | 0.96 | 4.67 |
Total n-3 <1 %E | 97.3 | 97.1 | 1.01 | 0.2 | 5.22 |
Ratio n-6:n-3 >82
| 75.7 | 93.4*** | 4.79 | 1.97 | 11.68 |
Cholesterol ≥300 mg3
| 63.1 | 55.7 | 0.74 | 0.42 | 1.3 |
Girls (n = 232)
|
n = 119
|
n = 113
| -- | -- | -- |
Total fat >30 %E | 41.2 | 46.9 | 1.29 | 0.76 | 2.18 |
SFA ≥10 %E | 49.6 | 46 | 0.88 | 0.52 | 1.48 |
PUFA >10 %E | 3.4 | 5.3 | 1.58 | 0.43 | 5.78 |
PUFA <6 %E | 54.6 | 49.6 | 0.80 | 0.48 | 1.35 |
Total n-6 <5%E | 46.6 | 38.1 | 0.68 | 0.40 | 1.15 |
Total n-6 >8 %E | 5 | 14.2* | 3.13 | 1.18 | 8.33 |
Total n-3 <1 %E | 98.3 | 97.3 | 0.63 | 0.1 | 3.84 |
Ratio n-6:n-3 >82
| 69.7 | 88.5*** | 3.44 | 1.7 | 6.95 |
Cholesterol ≥300 mg3
| 47.9 | 45.1 | 0.91 | 0.54 | 1.54 |
Food sources of fats and fatty acids
Foods1
| Total Sample | Boys (n = 217) | Girls (n = 232) | ||
---|---|---|---|---|---|
High-SES | Low-SES | High-SES | Low-SES | ||
n | 449 | 111 | 106 | 119 | 113 |
Fried eggs (%) | 7.4 | 7.3 | 9.8 | 6.0 | 6.9 |
Sweet bread (%) | 6.0 | 3.2 | 9.6 | 4.2 | 7.6 |
Whole milk (%) | 5.0 | 6.7 | 3.6 | 7.8 | 4.0 |
Fresh cheese (%) | 4.9 | 3.5 | 6.4 | 3.9 | 6.3 |
Fried potatoes (%) | 4.4 | 5.3 | 3.9 | 3.7 | 4.6 |
Whole milk with sugar (%) | 4.0 | 5.0 | 4.0 | 5.0 | 4.0 |
Beef steak, grilled (%) | 3.8 | 4.9 | 3.5 | 3.5 | 3.3 |
Hot dog (%) | 3.5 | -- | 3.5 | 5.1 | 3.0 |
Black beans, cooked (%) | 2.6 | 3.3 | -- | -- | -- |
Fried plantain (%) | 2.6 | -- | -- | 4.2 | -- |
Pizza (%) | -- | 4.7 | -- | -- | -- |
Cheese, cheddar (%) | -- | 2.7 | -- | -- | -- |
Corn tortilla (%) | -- | -- | 4.2 | -- | -- |
Fried chicken (%) | -- | -- | 3.4 | -- | -- |
Fried hamburger, homemade (%) | -- | -- | -- | 2.8 | -- |
Hot chocolate from tablets (%) | -- | -- | -- | -- | 5.0 |
Tomato gravy, spicy (%) | -- | -- | -- | -- | 3.2 |
Subtotals (%) | 44.2 | 46.6 | 51.9 | 46.2 | 47.9 |
Boys (n = 217) | Girls (n = 232) | ||||
---|---|---|---|---|---|
Foods1
| Total Sample | High-SES | Low-SES | High-SES | Low-SES |
n | 449 | 111 | 106 | 119 | 113 |
Fresh cheese (%) | 8.9 | 6.1 | 12.5 | 6.9 | 11.2 |
Whole milk (%) | 8.0 | 10.9 | 5.5 | 13.0 | 6.9 |
Whole milk with sugar (%) | 8.0 | 9.0 | 7.0 | 9.0 | 7.0 |
Fried eggs (%) | 5.9 | 5.5 | 8.4 | 4.6 | 5.4 |
Beef steak (grilled) (%) | 4.3 | 5.2 | 4.3 | 3.9 | 3.7 |
Fried potatoes (%) | 3.7 | 4.2 | 3.5 | 3.0 | 3.8 |
Hot dog (%) | 3.6 | 2.5 | 3.9 | 5.2 | 3.0 |
Pizza (%) | 3.3 | 7.0 | -- | 3.9 | -- |
Sweet bread (%) | 3.2 | -- | 5.6 | -- | 4.0 |
Hot chocolate (%) | 3.0 | -- | -- | -- | 8.3 |
Cheese, American (%) | -- | 4.7 | -- | 4.0 | -- |
Black beans, oil added (%) | -- | 3.5 | 3.9 | -- | -- |
Refried beans (%) | -- | -- | 2.2 | -- | -- |
Fried hamburger, homemade (%) | -- | -- | -- | 3.1 | -- |
Donuts (%) | -- | -- | -- | -- | 3.5 |
Subtotals (%) | 51.9 | 58.6 | 56.8 | 56.6 | 56.8 |