Serum concentrations of n-6/n-3 ratio according to monthly per-capita income.

<p>PUFA = polyunsaturated fatty acids. Figure was constructed based on linear mixed effect models estimates. Observations per waves of follow-up according to tertiles of per capita income (first/second and third tertiles): 1^st trimester = 73/145, 2^nd trimester = 62/127 and 3^rd trimester = 50/101. Differences between subgroups (first/second and third tertiles; p-value = 0.001). Mean gestational age (95% Confidence Interval) at pregnancy trimesters: 1^st = 9.6 (9.3–9.9), 2^nd = 23.4 (23.2–23.7) and 3^rd = 32.4 (32.0–32.8).