Table 3.

Summary of PRO-based projects by year from 2005-2019.

Year	Projects	ICD-10a groups	Level of aggregation, %			Departmentsb	Patientsb	Questionnairesb
			Group	Patient, no algorithm	Patient, with algorithm
2005	1	1	100	0	0	0	542	1200
2006	2	2	100	0	0	0	923	1876
2007	2	2	100	0	0	0	1318	3421
2008	2	2	100	0	0	0	1232	3630
2009	3	4	80	20	0	1	1606	3747
2010	2	4	75	25	0	1	2214	4098
2011	6	6	57	14	29	13	4721	6848
2012	8	7	67	0	33	17	7733	10,434
2013	11	10	58	0	42	10	7174	9346
2014	16	11	35	12	53	23	8415	11,816
2015	17	14	17	22	61	39	16,490	23,444
2016	23	16	13	25	63	49	20,201	36,912
2017	34	20	18	21	62	67	18,721	45,058
2018	44	24	14	27	59	91	21,143	56,178
2019c	47	26	15	27	58	97	18,262	42,127
Total	64	28	28	26	46	141	78,980	260,433

^aICD-10: 10th edition of the International Statistical Classification of Diseases and Related Health Problems.

^bPatients and departments may be involved in more than one disease-specific project.

^cAs of September 8, 2019.