However if data were stratified for peri- and postoperative complications in correlation to nutritional status of patients, an evident trend to a higher complication rate of 9% was obvious.
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The sentences
If the occurrence of complications is stratified in relation to the nutritional status, a clear trend towards a higher complication rate among those patients who are at risk for malnutrition (7%) or who are malnourished (9%) can be found (Table 1 ).