Table 2: Shared decision-marking categories and subcategories.

Category	Sub-category	References
Communication and relationship building	Individual characteristics	Peek, et al. [14], Towle, et al. [16], Friedberg, et al. [19], Légaré, et al. [24], Légaré and Witteman [25], Mandelblatt, et al. [26], Muthalagappan, et al. [28], Bieber, et al. [32], Sacchi, et al. [35], Bernhard, Butow, Aldridge, et al. [55], Charles, Gafni, Whelan, et al. [56], Isaacs, Kistler, Hunold, et al. [57], Peek, Gorawara-Bhat, Quinn, et al. [58], Peek, Odoms-Young, Quinn, et al. [59], Shalowitz and Wolf [60], Smith, Juraskova, Butow, et al. [61], Tinsel, Buchholz, Vach, et al. [62], Truglio-Londrigan [63], Upton, Fletcher, Madoc-Sutton, et al. [64]
	Relationship building—trust and respect	Durif-Bruckert, et al. [13], Towle, et al. [16], Muthalagappan, et al. [28], Deinzer, et al. [30], Hain and Sandy [34], Peek, et al. [58], Lown, Clark and Hanson [65], Ommen, Thuem, Pfaff, et al. [66], Shay and Lafata [67]
	Information exchange—communication	Charles, et al. [6], Bot, et al. [11], Charles, et al. [12], Peek, et al. [14], Edwards, et al. [18], Friedberg, et al. [19], Frosch, et al. [21], Hess, et al. [22], Lally, et al. [23], Légaré and Witteman [25], Mandelblatt, et al. [26], [27], Truglio-Londrigan [29], Bieber, et al. [32], Glass, et al. [38], Truglio-Londrigan [63], Lown, et al. [65], Shay and Lafata [67], Ford, Schofield and Hope [68], Saba, Wong, Schillinger, et al. [69], Siminoff and Step [70], Thorne, Oliffe and Stajduhar [71], White, Keller and Horrigan [72], Zoffmann, Harder and Kirkevold [73]
	Context	Charles, et al. [6], Edwards, et al. [18], Friedberg, et al. [19], Friesen-Storms, et al. [20], Frosch, et al. [21], Hess, et al. [22], Lally, et al. [23], Légaré, et al. [24], Légaré and Witteman [25], Mandelblatt, et al. [26], Montori, et al. [27], Muthalagappan, et al. [28], Truglio-Londrigan [29]
Work toward shared decision-making	Assessment	Charles, et al. [6], Légaré, et al. [24], Mandelblatt, et al. [26], Montori, et al. [27], Muthalagappan, et al. [28], Truglio-Londrigan [29], Wilson, et al. [31], Shabason, et al. [39], Zoffmann, et al. [73], Charles, Gafni and Whelan [74], Müller-Engelmann, Keller, Donner-Banzhoff, et al. [75]
	Finding balance	Charles, et al. [6], Elwyn, et al. [15], Friesen-Storms, et al. [20], Hess, et al. [22], Muthalagappan, et al. [28], Wilson, et al. [31], Christine and Kaldjian [36], Landmark, et al. [37], Lown, et al. [65], Saba, et al. [69], Charles, et al. [74], LeBlanc, Kenny, O'Connor, et al. [76], Peek, Quinn, Gorawara-Bhat, et al. [77]
	Teaching-learning	Elwyn, et al. [15], Friedberg, et al. [19], Frosch, et al. [21], Montori, et al. [27], Muthalagappan, et al. [28], Truglio-Londrigan [29], van Roosmalen, et al. [33], Charles, et al. [56], Shalowitz and Wolf [60], Ford, et al. [68], Charles, et al. [74], Peek, et al. [77]
	The decision point	Charles, et al. [6], Friesen-Storms, et al. [20], Sacchi, et al. [35], Lown, et al. [65], Saba, et al. [69], Charles, et al. [74]
Action for shared decision-making	Taking action on the decision	Frosch, et al. [21], Légaré and Witteman [25], Montori, et al. [27], Truglio-Londrigan [63], Ford, et al. [68]
	Returning to the provider to re-evaluate the decision	Durif-Bruckert, et al. [13], Friedberg, et al. [19], Frosch, et al. [21], Montori, et al. [27], Truglio-Londrigan [63], Ford, et al. [68], Zoffmann, et al. [73]