1Jolly MC, Sebire N, Harris J, et al. (2000) Obstetric risks of pregnancy in women less than 18 years old. Obstet Gynecol 96, 962–966.
2Hediger ML, Scholl TO, Schall JI, et al. (1997) Young maternal age and preterm labor. Ann Epidemiol 7, 400–406.
3Scholl TO, Hediger ML & Schall JI (1997) Maternal growth and fetal growth: pregnancy course and outcome in the Camden Study. Ann N Y Acad Sci 817, 292–301.
4Makrides M, Duley L & Olsen SF (2006) CD003402.
5Szajewska H, Horvath A & Koletzko B (2006) Effect of n-3 long-chain polyunsaturated fatty acid supplementation of women with low-risk pregnancies on pregnancy outcomes and growth measures at birth: a meta-analysis of randomized controlled trials. Am J Clin Nutr 83, 1337–1344.
6Horvath A, Koletzko B & Szajewska H (2007) Effect of supplementation of women in high-risk pregnancies with long-chain polyunsaturated fatty acids on pregnancy outcomes and growth measures at birth: a meta-analysis of randomized controlled trials. Br J Nutr 98, 253–259.
7van Eijsden M, Hornstra G, van der Wal MF, et al. (2008) Maternal n-3, n-6, and trans fatty acid profile early in pregnancy and term birth weight: a prospective cohort study. Am J Clin Nutr 87, 887–895.
8Rump P, Mensink RP, Kester AD, et al. (2001) Essential fatty acid composition of plasma phospholipids and birth weight: a study in term neonates. Am J Clin Nutr 73, 797–806.
9Olsen SF, Olsen J & Frische G (1990) Does fish consumption during pregnancy increase fetal growth? A study of the size of the newborn, placental weight and gestational age in relation to fish consumption during pregnancy. Int J Epidemiol 19, 971–977.
10Oken E, Kleinman KP, Olsen SF, et al. (2004) Associations of seafood and elongated n-3 fatty acid intake with fetal growth and length of gestation: results from a US pregnancy cohort. Am J Epidemiol 160, 774–783.
11Al MD, van Houwelingen AC & Hornstra G (2000) Long-chain polyunsaturated fatty acids, pregnancy, and pregnancy outcome. Am J Clin Nutr 71, 285S–291S.
12Innis SM (2008) Dietary omega 3 fatty acids and the developing brain. Brain Res 1237, 35–43.
13Su HM, Huang MC, Saad NM, et al. (2001) Fetal baboons convert 18:3n-3 to 22:6n-3 in vivo. A stable isotope tracer study. J Lipid Res 42, 581–586.
14Hibbeln JR, Nieminen LR, Blasbalg TL, et al. (2006) Healthy intakes of n-3 and n-6 fatty acids: estimations considering worldwide diversity. Am J Clin Nutr 83, 1483S–1493S.
15Minihane AM & Harland JI (2007) Impact of oil used by the frying industry on population fat intake. Crit Rev Food Sci Nutr 47, 287–297.
16de Groot RH, Hornstra G, van Houwelingen AC, et al. (2004) Effect of alpha-linolenic acid supplementation during pregnancy on maternal and neonatal polyunsaturated fatty acid status and pregnancy outcome. Am J Clin Nutr 79, 251–260.
17Brenna JT, Salem N Jr, Sinclair AJ, et al. (2009) alpha-Linolenic acid supplementation and conversion to n-3 long-chain polyunsaturated fatty acids in humans. Prostaglandins Leukot Essent Fatty Acids 80, 85–91.
18Gregory J, Lowe S, Bates C, et al. (2000) National Diet and Nutrition Survey: Young People Aged 4–18 Years, vol. 1, London: HMSO.
19Nelson M, Erens B, Bates B, et al. (2007) Low Income Diet and Nutrition Survey. London: TSO.
20Baker PN, Wheeler SJ, Sanders TA, et al. (2009) A prospective study of micronutrient status in adolescent pregnancy. Am J Clin Nutr 89, 1114–1124.
21Gillick v West Norfolk, Wisbech AHA & DHSS (1986) .
22Lepage G & Roy CC (1986) Direct transesterification of all classes of lipids in a one-step reaction. J Lipid Res 27, 114–120.
23Cole TJ, Bellizzi MC, Flegal KM, et al. (2000) Establishing a standard definition for child overweight and obesity worldwide: international survey. BMJ 320, 1240–1243.
24Cole TJ, Flegal KM, Nicholls D, et al. (2007) Body mass index cut offs to define thinness in children and adolescents: international survey. BMJ 335, 194.
25Noble M, Wright G, Dibben C, et al. (2004) The English Indices of Deprivation. London: Office of the Deputy Prime Minister.
26The Office for National Statistics (2005) The National Statistics Socio-Economic Classification: User Manual. Basingstoke: Macmillan.
27Gardosi J, Chang A, Kalyan B, et al. (1992) Customised antenatal growth charts. Lancet 339, 283–287.
28Anderson SG, Sanders TA & Cruickshank JK (2009) Plasma fatty acid composition as a predictor of arterial stiffness and mortality. Hypertension 53, 839–845.
29Kramer MS (1987) Intrauterine growth and gestational duration determinants. Pediatrics 80, 502–511.
30Koletzko B, Cetin I & Brenna JT (2007) Dietary fat intakes for pregnant and lactating women. Br J Nutr 98, 873–877.
31Akabas SR & Deckelbaum RJ (2006) Summary of a workshop on n-3 fatty acids: current status of recommendations and future directions. Am J Clin Nutr 83, 1536S–1538S.
32Scientific Advisory Committee on Nutrition, Committee on Toxicity (2004) Advice on Fish Consumption: Benefits and Risks. London: TSO.
33Kris-Etherton PM, Grieger JA & Etherton TD (2009) Dietary reference intakes for DHA and EPA. Prostaglandins Leukot Essent Fatty Acids 81, 99–104.
34Alvino G, Cozzi V, Radaelli T, et al. (2008) Maternal and fetal fatty acid profile in normal and IUGR pregnancies with and without preeclampsia. Pediatr Res 64, 625–630.
35Matorras R, Ruiz JI, Perteagudo L, et al. (2001) Longitudinal study of fatty acids in plasma and erythrocyte phospholipids during pregnancy. J Perinat Med 29, 293–297.
36van Eijsden M, Hornstra G, van der Wal MF, et al. (2009) Ethnic differences in early pregnancy maternal n-3 and n-6 fatty acid concentrations: an explorative analysis. Br J Nutr 101, 1761–1768.
37Reddy S, Sanders TA & Obeid O (1994) The influence of maternal vegetarian diet on essential fatty acid status of the newborn. Eur J Clin Nutr 48, 358–368.
38Patel RR, Steer P, Doyle P, et al. (2004) Does gestation vary by ethnic group? A London-based study of over 122,000 pregnancies with spontaneous onset of labour. Int J Epidemiol 33, 107–113.
39Warensjo E, Sundstrom J, Lind L, et al. (2006) Factor analysis of fatty acids in serum lipids as a measure of dietary fat quality in relation to the metabolic syndrome in men. Am J Clin Nutr 84, 442–448.
40Olsen SF, Hansen HS, Secher NJ, et al. (1995) Gestation length and birth weight in relation to intake of marine n-3 fatty acids. Br J Nutr 73, 397–404.
41Halldorsson TI, Meltzer HM, Thorsdottir I, et al. (2007) Is high consumption of fatty fish during pregnancy a risk factor for fetal growth retardation? A study of 44 824 Danish pregnant women. Am J Epidemiol 166, 687–696.
42Olsen SF, Hansen HS, Sommer S, et al. (1991) Gestational age in relation to marine n-3 fatty acids in maternal erythrocytes: a study of women in the Faroe Islands and Denmark. Am J Obstet Gynecol 164, 1203–1209.
43Grandjean P, Bjerve KS, Weihe P, et al. (2001) Birthweight in a fishing community: significance of essential fatty acids and marine food contaminants. Int J Epidemiol 30, 1272–1278.
44Olsen SF & Secher NJ (2002) Low consumption of seafood in early pregnancy as a risk factor for preterm delivery: prospective cohort study. BMJ 324, 447.
45Elias SL & Innis SM (2001) Infant plasma trans, n-6, and n-3 fatty acids and conjugated linoleic acids are related to maternal plasma fatty acids, length of gestation, and birth weight and length. Am J Clin Nutr 73, 807–814.
46Cetin I, Giovannini N, Alvino G, et al. (2002) Intrauterine growth restriction is associated with changes in polyunsaturated fatty acid fetal-maternal relationships. Pediatr Res 52, 750–755.
47Reece MS, McGregor JA, Allen KG, et al. (1997) Maternal and perinatal long-chain fatty acids: possible roles in preterm birth. Am J Obstet Gynecol 176, 907–914.
48Olsen SF, Osterdal ML, Salvig JD, et al. (2007) Duration of pregnancy in relation to fish oil supplementation and habitual fish intake: a randomised clinical trial with fish oil. Eur J Clin Nutr 61, 976–985.
49Smuts CM, Huang M, Mundy D, et al. (2003) A randomized trial of docosahexaenoic acid supplementation during the third trimester of pregnancy. Obstet Gynecol 101, 469–479.
50Harper M, Thom E, Klebanoff MA, et al. (2010) Omega-3 fatty acid supplementation to prevent recurrent preterm birth: a randomized controlled trial. Obstet Gynecol. 115, 234–242.
51Hodson L, Skeaff CM & Fielding BA (2008) Fatty acid composition of adipose tissue and blood in humans and its use as a biomarker of dietary intake. Prog Lipid Res 47, 348–380.