Table 4: Vitamin B12 and folic acid before and after surgery.

GroupVitamin B12 (pg/mL)Folic acid (ng/mL)
Baseline12 months after LGSBaseline12 months after LGS

A 4 3 0 ± 1 8 0 4 5 9 ± 3 8 5 . 4 6 . 3 ± 2 . 2 7 . 2 ± 3 . 9
B 3 8 7 . 5 ± 2 5 5 . 7 4 7 4 ± 2 6 1 . 9 4 ± 1 . 9 7 . 0 ± 2 . 1
C 5 1 0 . 5 ± 2 6 8 3 6 4 ± 1 6 1 . 2 7 ± 0 . 1 6 . 7 ± 2 . 6
D 7 0 1 ± 2 5 8 . 8 3 8 5 . 3 ± 2 0 9 . 1 6 ± 2 . 1 8 . 8 ± 6 . 0
E 3 5 0 . 7 ± 3 0 0 . 1 4 1 1 . 2 ± 2 5 3 . 4 6 . 1 ± 3 . 7 5 . 7 ± 2 . 7