Table 1. General characteristics of trials included in the review and reporting of stakeholder engagement (N = 415).
| Characteristic | Frequency (%)a |
|---|---|
|
Country of trial recruitmentb Canada United States of America United Kingdom European Union Australia or New Zealand LMIC Other high-income country |
45 (10.8%) 162 (39.0%) 22 (5.3%) 119 (28.7%) 6 (1.4%) 45 (10.8%) 49 (11.8%) |
|
Type of setting Clinical: primary care Clinical: hospital care Clinical: nursing homes Public health: community or residential setting Public health: schools Public health: workplaces Mixture, unclear, or other |
127 (30.6%) 192 (46.3%) 8 (1.9%) 43 (10.4%) 4 (1.0%) 4 (1.0%) 37 (8.9%) |
|
Trial design (unit of randomization) Individually randomized Cluster randomized |
263 (63.4%) 152 (36.6%) |
|
Primary purpose (based on
ClinicalTrials.gov)c Treatment Prevention Diagnostic Supportive care Screening Health services research Other |
159 (38.3%) 81 (19.5%) 21 (5.1%) 39 (9.4%) 14 (3.4%) 96 (23.1%) 5 (1.2%) |
|
Types of experimental interventionsb,c,d Drug Device Biological/vaccine Procedure/surgery Radiation Genetic Dietary supplement Educational or behavioral Other |
53 (12.8%) 35 (8.4%) 3 (0.7%) 38 (9.2%) 1 (0.2%) 1 (0.2%) 1 (0.2%) 171 (41.2%) 142 (34.2%) |
|
Type of funderb Government, university, or international agency Foundation or special interest group Industry Unfunded Individual No funding information provided |
321 (77.3%) 106 (25.5%) 75 (18.1%) 5 (1.2%) 2 (0.5%) 13 (3.1%) |
|
Journal impact factore Min, max Median (Q1-Q3) |
0.48, 70.7 5.4 (3.5–19.0) |
|
Reported patient or public engagement Yes No Unclear |
39 (9.4%) 370 (89.2%) 6 (1.4%) |
|
Reported any other stakeholder engagement Yes No Unclear |
51 (12.3%) 356 (85.8%) 8 (1.9%) |
aUnless otherwise indicated.
bMultiple selections possible.
cApproximately 12 trials with missing values in ClinicalTrials.gov were manually classified by extractors; 3 trials with obviously erroneous ClinicalTrials.gov values were manually classified by extractors.
dOne trial with missing ClinicalTrials.gov intervention was reclassified by extractors.
eImpact factors for 19 trials were not available and 16 were imputed using the SJR.
LMIC, low- or middle-income country; SJR, SCImago Journal and Country Rank.