Table 1, page 1917: In the column headed “Sickle cell trait, n = 449 (2),” the data for “Female sex, n (%)” (second row) should read “366 (82),” not “212 (81).” In the next-to-last row of the same column, the number of patients with a pulmonary embolism should be 18, not 187. The errors have been corrected in the published article.