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Laparoscopic gastric banding has introduced a new element into weight reduction surgery. The authors compared subjects who had undergone a laparoscopic gastric banding (lap-band) procedure with those who had undergone a gastric bypass operation on relevant psychological and behavioral parameters.A self-report questionnaire developed by the researchers was used. It included questions about aspects of food and eating as well as attitudinal items relating to the outcome of the surgery.There were significant differences between the lap-band group and the gastric bypass group in their distance from their desired weight, their eating, and their attitudes. Conclusion: 9 months after surgery, gastric bypass surgery appears to be the superior procedure on several parameters. The surgery induction process may be critical. Evaluation at later stages is vital.