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:…factors (e.g., hypertension, stroke, and diabetes) (Arvanitakis et al. 2016; Bogush et al. 2017; Eskildsen et al. 2017; Kelleher and Soiza 2013; Longden et al. 2016; Love and Miners 2017; McInerney et al. 2017; Nielsen et al. 2017; Perrotta et al. 2016; Sheen and Sheu 2016; Sudduth et al. 2017).
Category: