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Regression studies.
| Lead author | Study design | Patients | Mean age | Operation type | Female (%) | Results |
|---|---|---|---|---|---|---|
| Jantz [14] | Retrospective | 384 | 43.3 | LRYGB | 82.5 | Inconclusive |
| Alvarado [15] | Retrospective | 90 | 42 | LRYGB | 90 | Supportive |
| Sharon Alger [16] | Prospective | 150 | 45.3 | RYGB* | 80 | Inconclusive |
| Carlin [17] | Retrospective | 295 | 45 | LRYGB | 88.8 | Inconclusive |
LRYGB: laparoscopic roux-en-y gastric bypass; *RYGB: Roux en Y Gastric Bypass. the roux-en-y gastric bypass was an open procedure.
