Table 1 Study design and objectives of the studies included in the systematic review*.

Study design	Number of articles	References	Number of articles in each study design category intending to test utility of SPC	References
Case study	28	16, 17, 19–21, 24, 26, 29, 33, 34, 36, 39, 41, 44–49, 53, 55, 57, 58, 61, 63–65, 67	16	16, 17, 20, 24, 26, 36, 41, 44, 47, 48, 57, 61, 63–65, 67
Tutorial with illustrative case study	23	15, 18, 22, 23, 25, 27, 30, 31, 35, 37, 38, 40, 42, 50–52, 54, 59, 62, 66, 69–71	3	22, 25, 30
Observational study of change in clinical procedure(s) using historical controls	2	43, 68	0
Controlled before‐and‐after intervention studies	2	28, 56	1	56
Patient case reports	2	32, 60	2	32, 60

*The study designs are reported in order of frequency.