The risk of death after gastric band surgery is 1 in 200 and as little as 1 in a 100 for gastric bypass. (jacksonlees.co.uk)
NHS - provided statistics suggest that the risk of any complication with gastric band or gastric bypass surgery is 1 in 10 and 1 in 5 respectively. (jacksonlees.co.uk)
After gastric bypass this behavior will put you at risk for dumping syndrome while adjustable gastric band patients increase risk of blockage or obstruction. (fb101.com)