Table 1.

Summary of included trials

	Number (%)
Clinical population
Medical	62 (70%)
Surgical	6 (7%)
Obstetric	7 (8%)
Mental Health	11 (12%)
Children	1 (1%)
Emergency department	2 (2%)
Region where fieldwork was conducted
Asia	64 (72%)
Americas	8 (9%)
Europe	16 (18%)
Oceania	1 (1%)
Funding
Own account	22 (25%)
University	7 (8%)
Not reported	14 (16%)
External grant	46 (52%)
Summary of PPIE in the manuscript	0 (0%)
Participants were thanked in the acknowledgement section of the manuscript	34 (38%)
At least one author on an included manuscript identified as a lived experience (patient) researcher	0 (0%)
GRIPP 2—short form
Aim (the aim of PPI in the study)	0 (0%)
Methods (description of the methods used for PPI in the study)	0 (0%)
Study results (results of PPI in the study)	0 (0%)
Discussion and conclusions (the extent to which PPIE influenced the study overall)	0 (0%)
Reflections and critical perspective	0 (0%)