Table 3 Registered trials confirmed as using qualitative methods by country income by registry
Country income category | Gross national income | WHO ICTRP | ClinicalTrials.gov | ISRCTN | Total |
|---|---|---|---|---|---|
Low | $1005 or less | 0 (0%) | 14 (73.6%) | 5 (26.3%) | 19 (1.3%) |
Low-middle | $1006–$3955 | 2 (7%) | 21 (72.4%) | 6 (20.7%) | 29 (1.9%) |
Upper-middle | $3956–$12,235 | 5 (11%) | 41 (89.1%) | 1 (2.17%) | 47 (3.1%) |
High | $12,236 or more | 91 (7%) | 802 (57.4%) | 504 (36.1%) | 1397 (93.7%) |