Figure 2.

Association between percentage of energy from ω-3 fats and fecundability among those who did not consume fish oil supplements, fitted by restricted cubic splines, Pregnancy Study Online (A), United States and Canada, and Snart Foraeldre (B), Denmark, 2013–2016. A) The reference level is 0.43. There are 3 knots located at 10th, 50th, and 90th percentiles (0.49, 0.72, and 1.36). The solid line indicates the fecundability ratio, and the dashed lines indicate the 95% confidence bounds. After restriction to those who did not consume fish oil supplements, n = 1,025. B) The reference level is 0.43. There are 3 knots located at 10th, 50th, and 90th percentiles (0.81, 1.04, and 1.36). The solid line indicates the fecundability ratio, and the dashed lines indicate 95% confidence bounds. After restriction to those who did not consume fish oil supplements, n = 730.