Table 2.
Micronutrient deficiencies >2 to 5 years after RYGB
| Author (year) | Study | Procedure, patient (n) | Follow-up period (yr) | Anemia | Low ferritin or iron | Low vitamin B12 | Vitamin D deficiency |
|---|---|---|---|---|---|---|---|
| Olbers et al. (2017)16 | AMOS | RYGB, 81 | >5 | 25/77 (32) | 51/77 (66) | 16/73 (22) | 20/73 (27) |
| Inge et al. (2017)17 | FABS 5+ | RYGB, 58 | >5 | 25/58 (43) | 35/51 (69) | 8/50 (16) | 22/48 (46) |
| Inge et al. (2019)13,18 | Teen-LABS | RYGB, 161 | >2 | NA | 83/127 (65) | 10/121 (8) | 61/128 (48) |
| SG, 67 | 15/44 (34) | 3/39 (8) | 13/44 (30) |
Values are presented as number/total (%).
RYGB, Roux-en-Y gastric bypass; AMOS, Swedish Adolescent Morbid Obesity Surgery; FABS 5+, Follow-up of Adolescent Bariatric Surgery at 5 Plus Years; Teen-LABS, Teen-Longitudinal Assessment of Bariatric Surgery; SG, sleeve gastrectomy; NA, not available.