Table 4.

Follow-up and late complications

	N
	OAGB (n = 185)	RYGB (n = 306)	p value
Surgical intervention (all cause)	17 (9.2%)	38 (12.4%)	0.272
Biliary reflux	22 (11.9%)	6 (2.0%)	< 0.001
For which intervention was needed	10 (5.4%)	1 (0.3%)	< 0.001
Internal herniation	1 (0.5%)	17 (5.6%)	0.004
For which intervention was needed	0 (0.0%)	15 (4.9%)	0.002
Malnutrition	9 (4.9%)	2 (0.7%)	0.002
For which intervention was needed	2 (1.1%)	1 (0.3%)	0.299
Abdominal pain	8 (4.3%)	26 (8.5%)	0.078
For which intervention was needed	3 (1.6%)	14 (4.6%)	0.083
Laparoscopic cholecystectomy	8 (4.3%)	15 (4.9%)	0.769
Iron deficiency	35 (18.9%)	56 (18.3%)	0.236
Hypoglycemia	6 (3.2%)	10 (3.3%)	0.988
Hypoalbuminemia	3 (1.6%)	6 (2.0%)	0.786
Ulcer	4 (2.2%)	6 (2.0%)	0.878
Stricture formation of anastomosis	1 (0.5%)	2 (0.7%)	0.432

Data are displayed as frequencies and percentage