Table 1 Characteristics of included citations
From: Operationalization of assent for research participation in pre-adolescent children: a scoping review
Studies operationalizing assent (n = 79) Number (%) | Studies defining assent (n = 57) Number (%) | |
|---|---|---|
Year of publication | ||
1990–2000 | 2 (2.5) | 2 (3.5) |
2000–2010 | 15 (19.0) | 18 (31.6) |
2010–2020 | 62 (78.5) | 35 (61.4) |
Location of main study sitea | ||
North America | 43 (54.4) | 32 (56.1) |
Europe | 14(17.7) | 18 (31.6) |
Africa | 12 (15.2) | 4 (7.0) |
Central and South America | 5 (6.3) | 2 (3.5) |
East Asia | 1 (1.3) | 2 (3.5) |
Rest of Asia | 6 (7.6) | 0 (0) |
Australia/New Zealand | 3 (3.8) | 2 (3.5) |
Middle East | 0 (0) | 1 (1.8) |
Number of centres | ||
Single-center | 54 (68.4) | 31 (54.4) |
Multi-center | 20 (25.3) | 12 (21.1) |
International sites: yes | 6 (7.6) | 5 (8.8) |
International sites: no | 14 (17.7) | 7 (12.3) |
Not reported | 2 (2.5) | 6 (10.5) |
Not applicable | 3 (3.8) | 8 (14.0) |
Study designb | ||
Systematic/scoping review | 0 (0) | 8 (14.0) |
Randomized controlled trial | 13 (16.5) | 2 (3.5) |
Quasi-randomized studies | 4 (5.1) | 1 (1.8) |
Cohort study | 38 (48.1) | 15 (26.3) |
Case-control study | 1 (1.3) | 0 (0) |
Survey/interview/focus group | 15 (19.0) | 30 (52.6) |
Patient registry | 1 (1.3) | 0 (0) |
Study protocol | 8 (10.1) | 0 (0) |
Otherc | 4 (5.1) | 6 (10.5) |