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. 2013 Apr 11;5:149–163. doi: 10.2147/IJWH.S37254

Table 3.

Proportion of women (cumulative) with plasma and RBC folate levels below the mean median baseline value, and with homocysteine levels above the mean median baseline value in the 20-week period following the cessation of 24 weeks of treatment with EE-drospirenone-levomefolate calcium or EE-drospirenone + folic acid (per protocol set)

Week Plasma folate
RBC folate
Homocysteine
Levomefolate calcium Folic acid Levomefolate calcium Folic acid Levomefolate calcium Folic acid
26 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 4 (5.3) 2 (2.7)
28 4 (5.3) 4 (5.3) 0 (0.0) 0 (0.0) 8 (10.7) 5 (6.7)
30 5 (6.7) 8 (10.7) 0 (0.0) 0 (0.0) 11 (14.7) 9 (12.0)
32 11 (14.7) 12 (16.0) 0 (0.0) 0 (0.0) 14 (18.7) 12 (16.0)
34 15 (20.0) 17 (22.7) 1 (1.3) 0 (0.0) 16 (21.3) 14 (18.7)
36 23 (30.7) 23 (30.7) 2 (2.7) 2 (2.7) 19 (25.3) 17 (22.7)
38 25 (33.3) 25 (33.3) 2 (2.7) 2 (2.7) 20 (26.7) 23 (30.7)
40 30 (40.0) 34 (45.3) 6 (8.0) 2 (2.7) 22 (29.3) 26 (34.7)
42 30 (40.0) 38 (50.7) 7 (9.3) 3 (4.0) 25 (33.3) 29 (38.7)
44 44 (58.7) 45 (60.0) 8 (10.7) 6 (8.0) 26 (34.7) 30 (40.0)

Notes: Data are n (%). The mean median baseline values were as follows for EE-drospirenone-levomefolate calcium and EE-drospirenone + folic acid, respectively: plasma folate, 16.4 and 14.1 nmol/L; RBC folate, 578.3 and 550.2 nmol/L; homocysteine, 9.3 and 9.2 μmol/L.

Abbreviations: EE, ethinylestradiol; RBC, red blood cells.