Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Although our results cannot be directly compared to previous findings, the low levels of awareness we observed, with only 23 % of the pupils responding positively to at least two of the awareness items, are similar to those reported in other studies among school-going adolescents [1, 6, 7, 11].
Category: