TABLE 4.

Comparison of the overall median of the included studies in the review of Tariman et al. and this review, concerning the percentage preferred and perceived active, shared and passive involvement for all studies and for subgroups ¹⁴

	Previous Review by Tariman et al.				Present review by Noteboom et al.
	Preferred		Perceived		Preferred		Perceived
	N = number of studies, participants, decisions	Median % (IQR)	N = number of studies, participants, decisions	Median % (IQR)	N = number of studies, participants, decisions	Median % (IQR)	N = number of studies, participants, decisions	Median % (IQR)
Active involvement in decision making
All	N = 19, 5294, 5294	24 (19–39)	N = 18, 6079, 6332	32 (22–46)	N = 31, 13247, 16537	25 (14–36)	N = 31, 13247, 16537	27 (20–41)
Breast	N = 11, 3830, 3830	24 (20–35)	N = 10, 4667, 4667	35 (24–51)	N = 13, 4005, 4561	18 (9–36)	N = 13, 4005, 4561	27 (9–43)
Lung	N = 1 a , 2, 22	19	N = 1 a , 22, 22	14	N = 2 a , 126, 126	14 27	N = 2 a , 126, 126	29
								24
Haematologic	N = 0	‐	N = 0	‐	N = 2 a , 299, 266	25	N = 2 a , 299, 266	20
						16		23
Colorectal	N = 1 a , 55, 55	18	N = 1 a , 55, 55	6	N = 1, 113, 113	10	N = 1 a , 113, 113	24
Prostate	N = 4, 853, 853	41 (27–53)	N = 4, 853, 853	57 (35–78)	N = 2 a , 635, 635	89	N = 2 a , 635, 635	87
						45		39
Western	N = 19, 5294, 5294	24 (19–39)	N = 18, 6079, 6332	32 (22–46)	N = 23, 11516, 14806	31 (18–38)	N = 23, 11516, 14806	28 (23‐42)
Asian	N = 0	‐	N = 0	‐	N = 8, 1731, 1731	16 (10–25)	N = 8, 1731, 1731	23 (10–29)
Early	N = 7, 2090, 2090	40 (31–53)	N = 7, 3076, 3076	62 (39–77)	N = 12, 3671, 4227	26 (15–37)	N = 12, 3671, 4227	28 (9–44)
Advanced	N = 1 a , 22, 22	19	N = 1 a , 22, 22	14	N = 5, 869, 845	14 (9–33)	N = 5, 869, 845	21 (13–36)
Shared involvement in decision making
All	N = 19, 5294, 5294	42 (28–47)	N = 18, 6079, 6332	21 (17–34)	N = 30, 12793, 16083	46 (32–56)	N = 30, 12793, 16083	39 (22–47)
Breast	N = 11, 3830, 3830	42 (29–49)	N = 10, 4667, 4667	30 (18–36)	N = 13, 4005, 4561	48 (29–53)	N = 13, 4005, 4561	33 (17–48)
Lung	N = 1 a , 2, 22	24	N = 1 a , 22, 22	9	N = 2 a , 126, 126	61	N = 2 a , 126, 126	46
						47		48
Haematologic	N = 0	‐	N = 0	‐	N = 2 a , 299, 266	30	N = 2 a , 299, 266	22
						32		39
Colorectal	N = 1 a , 55, 55	47	N = 1 a , 55, 55	18	N = 1 a , 113, 113	35	N = 1 a , 113, 113	18
Prostate	N = 4, 853, 853	43 (38–48)	N = 4, 853, 853	30 (15–43)	N = 1 a , 181, 181	16	N = 1 a , 181, 181	46
Western	N = 19, 5294, 5294	42 (28–47)	N = 18, 6079, 6332	21 (17–34)	N = 22, 11062, 13632	43 (32–55)	N = 22, 11062, 13632	37 (22–43)
Asian	N = 0	‐	N = 0	‐	N = 8, 1731, 1731	49 (25–60)	N = 8, 1731, 1731	45 (22–60)
Early	N = 7, 2090, 2090	42 (29–48)	N = 7, 3076, 3076	17 (14–33)	N = 11, 3217, 3773	47 (27–51)	N = 12, 3671, 4227	33 (14–48)
Advanced	N = 1 a , 22, 22	24	N = 1 a , 22, 22	9	N = 5, 869, 845	45 (24–67)	N = 5, 869, 845	38 (21–44)
Passive involvement in decision making
All	N = 19, 5294, 5294	34 (13–47)	N = 18, 6079, 6332	39 (21–76)	N = 31, 13247, 16537	27 (16‐44)	N = 31, 13247, 16537	34 (22‐46)
Breast	N = 11, 3830, 3830	34 (15–48)	N = 10, 4667, 4667	29 (20–55)	N = 13, 4005, 4561	27 (17‐51)	N = 13, 4005, 4561	36 (24‐46)
Lung	N = 1 a , 2, 22	57	N = 1 a , 22, 22	76	N = 2 a , 126, 126	25	N = 2 a , 126, 126	25
						27		28
Haematologic	N = 0, 0, 0	‐	N = 0, 0, 0	‐	N = 2 a , 299, 266	46	N = 2 a , 299, 266	58
						52		39
Colorectal	N = 1 a , 55, 55	35	N = 1 a , 55, 55	76	N = 1 a , 113, 113	54	N = 1 a , 113, 113	59
Prostate	N = 4, 853, 853	16 (8–29)	N = 4, 853, 853	15 (7–23)	N = 2 a , 635, 635	11	N = 2 a , 635, 635	13
						39		15
Western	N = 19, 5294, 5294	34 (13–47)	N = 18, 6079, 6332	39 (21–76)	N = 23, 11516, 14806	23 (16–38)	N = 23, 11516, 14806	36 (21–46)
Asian	N = 0	‐	N = 0	‐	N = 8, 1731, 1731	35 (16–54)	N = 8, 1731, 1731	28 (23–54)
Early	N = 7, 2090, 2090	12 (10–17)	N = 7, 3076, 3076	18 (8–27)	N = 12, 3671, 4227	27 (16–54)	N = 12, 3671, 4227	31 (23–46)
Advanced	N = 1 a , 22, 22	57	N = 1 a , 22, 22	76	N = 5, 869, 845	35 (23–49)	N = 5, 869, 845	46 (31–55)

^a For subgroups that include 1 or 2 studies, the individual percentage(s) is presented.