|
Fatty acid tertile
|
n
|
Model 11
|
Model 22
|
|---|
|
PUFA
| | | |
|
<44.32%
|
166
|
10.58 (10.13, 11.05)3
|
10.45 (10.05, 10.88)
|
|
44.32–46.20%
|
165
|
10.23 (9.81, 10.68)
|
10.16 (9.77, 10.55)
|
|
≥46.21%
|
165
|
9.95 (9.52, 10.39)
|
10.14 (9.75, 10.55)
|
|
P-trend4
| |
0.06
|
0.34
|
|
n-6 PUFA5
| | | |
|
<32.44%
|
166
|
10.18 (9.72, 10.66)
|
10.32 (9.90, 10.77)
|
|
32.44–35.19%
|
165
|
10.05 (9.63, 10.49)
|
9.98 (9.61, 10.37)
|
|
≥35.20%
|
165
|
10.52 (10.05, 11.02)
|
10.45 (10.02, 10.90)
|
|
P-trend4
| |
0.34
|
0.67
|
|
LA (18:2n-6)
| | | |
|
<19.98%
|
166
|
10.32 (9.90, 10.77)
|
10.08 (9.64, 10.55)
|
|
19.98–22.92%
|
165
|
9.98 (9.61, 10.37)
|
10.12 (9.70, 10.56)
|
|
≥22.93%
|
165
|
10.45 (10.02, 10.90)
|
10.55 (10.09, 11.04)
|
|
P-trend4
| |
0.67
|
0.14
|
|
DGLA (20:3n-6)
| | | |
|
<1.96%
|
166
|
10.11 (9.68, 10.55)
|
10.25 (9.85, 10.66)
|
|
1.96–2.43%
|
165
|
10.47 (10.04, 10.93)
|
10.39 (9.99, 10.79)
|
|
≥2.44%
|
165
|
10.17 (9.74, 10.62)
|
10.12 (9.71, 10.54)
|
|
P-trend4
| |
0.83
|
0.64
|
|
AA (20:4n-6)
| | | |
|
< 9.25%
|
166
|
10.30 (9.86, 10.75)
|
10.29 (9.85, 10.65)
|
|
9.25 –10.71%
|
165
|
10.27 (9.84, 10.72)
|
10.39 (10.00, 10.80)
|
|
≥ 10.72%
|
165
|
10.18 (9.75, 10.63)
|
10.12 (9.73, 10.52)
|
|
P-trend4
| |
0.73
|
0.64
|
|
n-3 PUFA5
| | | |
|
<9.95%
|
166
|
10.75 (10.29, 11.23)
|
10.49 (10.07, 10.92)
|
|
9.95–12.34%
|
165
|
10.08 (9.66, 10.52)
|
10.07 (9.69, 10.46)
|
|
≥12.35%
|
165
|
9.93 (9.50, 10.38)
|
10.20 (9.79, 10.62)
|
|
P-trend4
| |
0.02
|
0.36
|
|
EPA (20:5n-3)
| | | |
|
<1.87%
|
166
|
10.76 (10.31, 11.24)
|
10.56 (10.14, 10.99)
|
|
1.87–2.89%
|
165
|
10.10 (9.68, 10.54)
|
10.12 (9.74, 10.51)
|
|
≥2.90%
|
165
|
9.90 (9.48, 10.34)
|
10.08 (9.69, 10.49)
|
|
P-trend4
| |
0.01
|
0.12
|
|
DPA (22:5n-3)
| | | |
|
<0.99%
|
166
|
10.61 (10.15, 11.09)
|
10.49 (10.08, 10.92)
|
|
0.99–1.20%
|
165
|
10.14 (9.72, 10.58)
|
10.09 (9.71, 10.48)
|
|
≥1.21%
|
165
|
10.01 (9.57, 10.48)
|
10.18 (9.76, 10.60)
|
|
P-trend4
| |
0.08
|
0.30
|
|
DHA (22:6n-3)
| | | |
|
<6.84%
|
166
|
10.72 (10.26, 11.19)
|
10.57 (10.16, 11.00)
|
|
6.84–8.25%
|
165
|
10.33 (9.90, 10.77)
|
10.25 (9.87, 10.64)
|
|
≥8.26%
|
165
|
9.73 (9.31, 10.17)
|
9.94 (9.55, 10.34)
|
|
P-trend4
| |
0.003
|
0.04
|
- Abbreviations: AA Arachidonic acid, DGLA Dihomo-γ-linolenic acid, DHA Docosahexaenoic acid, DPA Docosapentaenoic acid, EPA Eicosapentaenoic acid, LA Linoleic acid, PUFA Polyunsaturated fatty acid.
- 1Adjusted for age (y, continuous), sex and workplace [A (surveyed in July) or B (surveyed in November)].
- 2Adjusted for age (y, continuous), sex, workplace [A (surveyed in July) or B (surveyed in November)], smoking status (non-smoker or smoker), BMI (kg/m2, continuous), alcohol consumption (non-drinker, <20 g/d or ≥20 g/d), occupational physical activity (sedentary work or active work), non-occupational physical activity (0, 0 < to <5 or ≥5 MET-h/wk), serum folate (ng/mL, continuous), vitamin B6 intake (mg/1000 kcal, continuous) and vitamin B12 intake (μg/1000 kcal, continuous).
- 3Geometric means (95% confidence interval) of serum homocysteine (nmol/mL).
- 4P-trend values were based on multiple regression analysis, with ordinal numbers 0–2 assigned to tertile categories of each fatty acid.
- 5N-6 PUFA is the sum of LA, DGLA, and AA; n-3 PUFA is the sum of EPA, DPA, and DHA; PUFA is the sum of n-6 and n-3 PUFA.
