As of March 2013, 23 hospitals had been evaluated. Their mean score on the evaluation scale was 34.6 (extremes: 20.0 – 45.6). The main issues detected in the structure and process of surveillance were: understaffing (slight in 21.7%, important in 8.7%), lack of participation in the training sessions organized by Swissnoso (41% of physicians and 29.6% of study nurses did not participate), problems in case inclusions (partially inadequate in 26.1%, incorrect in 4.3%), difficulties in finding the required medical information (13.1%), lack of supervision by a trained physician (rarely done in 8.7%, only sometimes done in 13.1%). Among the 234 cases reviewed, follow-up at one month was not available in 5%. Among 221 cases selected without consideration of SSI, SSI was missed in 5 (false negatives=2.3%). Among 103 cases with SSI, 18 (17.5%) were misclassified regarding the type of SSI (superficial, deep or organ/space).