Table 2.
Adjusted regression coefficients (S.E.) for differences in omega-3 fatty acid relative to a one-unit increase in log10-transformed diphenyl phosphate (DPhP), with results weighted for sampling strategy.
| Eicosapentaenoic acid (μmol/L) | Docosahexaenoic acid (μmol/L) | Alpha-linolenic acid (μmol/L) | Stearidonic acid (μmol/L) | Docosapentaenoic acid (μmol/L) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unweighted no./Population size | Regression coefficient (S.E.) | P | Unweighted no./Population size | Regression coefficient (S.E.) | P | Unweighted no./Population size | Regression coefficient (S.E.) | P | Unweighted no./Population size | Regression coefficient (S.E.) | P | Unweighted no./Population size | Regression coefficient (S.E.) | P | |
| Overall | 1,210/ 53,466,400 | −7.92 (3.07) | 0.015 | 1,148/ 51,175,298 | −18.1 (5.88) | 0.004 | 1,338 (57068532) | −4.99 (2.66) | 0.069 | 1,127/ 49,353,600 | −0.68 (0.31) | 0.034 | 1,229/ 53,859,774 | −4.74 (1.32) | 0.001 |
| Sex | |||||||||||||||
| Male | 578(25098217) | −13.57(3.62) | 0.001 | 554(24390323) | −17.65(7.08) | 0.018 | 635(26652434) | −7.72(4.1) | 0.069 | 541(23559140) | −1.52(0.52) | 0.007 | 585/25284654 | −7.31(2.11) | 0.002 |
| Female | 632(28368184) | −2.47(4.69) | 0.602 | 594(26784975) | −17.86(8.03) | 0.036 | 703(30416098) | −3.64(3.76) | 0.34 | 586(25794460) | 0.07(0.29) | 0.819 | 644(28575120) | −2(1.19) | 0.104 |
| Age (years) | |||||||||||||||
| 20–50 | 628(28793617) | −8.00(3.47) | 0.028 | 585(27142107) | −15.86(7.66) | 0.046 | 688(30622159) | −5.57(5.34) | 0.305 | 557(25985209) | −0.92(0.62) | 0.148 | 636(29055012) | −3.18(1.67) | 0.066 |
| >50 | 582(24672783) | −6.3(5.76) | 0.282 | 563(24033191) | −19.82(7.31) | 0.013 | 650(26446373) | −3.75(4.24) | 0.384 | 570(23368390) | −0.43(0.31) | 0.178 | 593(24804763) | −6.07(1.61) | 0.001 |
| Body mass index (kg/m 2) | |||||||||||||||
| <25 | 344(14680564) | −9.57(4.48) | 0.04 | 320(13835737) | −13.33(7.09) | 0.069 | 386(15584032) | −10.16(6.68) | 0.143 | 309(13025788) | −1.24(1.21) | 0.313 | 354(14845303) | −2.31(2.39) | 0.342 |
| 25–30 | 413(19028922) | −2.68(3.94) | 0.502 | 393(18186051) | −16.82(9.04) | 0.072 | 455(20343822) | −1.87(4.34) | 0.669 | 391(17922549) | −0.44(0.38) | 0.26 | 416(19124390) | −4.87(2.01) | 0.021 |
| ≧30 | 446(19611553) | −14.16(5.11) | 0.009 | 428(19008148) | −22.35(9.03) | 0.019 | 497(21140679) | −3.49(6.38) | 0.588 | 427(18405253) | −0.48(0.27) | 0.079 | 452(19744719) | −7.29(2.34) | 0.004 |
| Alcohol consumption (drink/year) | |||||||||||||||
| <12 | 289(10184079) | −6.54(6.34) | 0.311 | 289(10184079) | −20.92(8.95) | 0.026 | 327(11054304) | −3.12(5.27) | 0.558 | 292(9998263) | −0.01(0.21) | 0.649 | 307(10654708) | −3.31(2.47) | 0.191 |
| ≧12 | 862(41115945) | −7.81(3.15) | 0.019 | 859(40991219) | −16.28(6.32) | 0.015 | 913(42559157) | −5.62(3.23) | 0.091 | 835(39355337) | −0.86(0.4) | 0.04 | 865(41072743) | −5.52(1.48) | 0.001 |
| Income (USD) | |||||||||||||||
| <45,000 | 604(20765108) | −4.77(4.49) | 0.296 | 575(19834326) | −14.92(6.55) | 0.03 | 639(21772125) | −7.15(3.67) | 0.06 | 534(18692240) | −0.72(0.35) | 0.047 | 589(20351227) | −3.31(1.78) | 0.071 |
| > = 45,000 | 606(32701293) | −10.45(4.11) | 0.016 | 573(31340972) | −19.38(7.29) | 0.012 | 647(33725326) | −2.47(4.74) | 0.605 | 547(29284015) | −0.6(0.59) | 0.322 | 594(32097279) | −5.19(2.30) | 0.031 |
| Ethnicity | |||||||||||||||
| Mexican-American | 150(4404881) | −1.42(3.32) | 0.676 | 139(4046923) | −21.92(8.9) | 0.03 | 171(5006399) | −8.17(5.78) | 0,181 | 139(4149747) | −0.54(0.47) | 0.279 | 157(4702000) | −5.35(2.81) | 0.08 |
| Other Hispanic | 110(2876210) | 11.3(3.83) | 0.011 | 104(2666953) | 2.51(11.96) | 0.837 | 139(3563313) | 4.25(4.66) | 0.376 | 115(2761828) | 0.30(0.35) | 0.395 | 126(3248913) | 2.82(1.93) | 0.164 |
| Non-Hispanic White | 562(38067694) | −8.04(3.8) | 0.043 | 543(36842123) | −15.45(7.64) | 0.052 | 591(39536591) | −5.31(4.0) | 0.194 | 530(35419924) | −0.82(0.42) | 0.062 | 553(37780032) | −5.37(1.85) | 0.007 |
| Non-Hispanic Black | 222(4371286) | −6.66(4.75) | 0.176 | 213(4162272) | −15.91(7.56) | 0.048 | 245(4805034) | −1.66(3.9) | 0.674 | 204(3918381) | −0.27(0.3) | 0.366 | 222(4341893) | −3.58(1.87) | 0.07 |
| Other Race - Including Multi-Racial | 166(3746329) | −27.04(10.17) | 0.014 | 149(3457027) | −51.97(14.15) | 0.001 | 192(4157195) | −8.19(8.18) | 0.327 | 139(3103719) | −0.21(0.51) | 0.681 | 171)378636) | −4.77(2.5) | 0.069 |