African trials extract 12 endpoints per study vs Europe's 10.
Africa Endpoints/Trial
12
Europe Endpoints/Trial
10
Density Ratio
1.2x
Model
Data extraction
Key Finding
The 1,793 HIV trials and 2,182 cancer trials showed the highest endpoint densities reflecting complex multi-domain assessments.
Regional Comparison
Hiv — Condition Analysis
Multi-Dimensional Equity Profile
Design Feature & Temporal Trend
Inequality Decomposition & Statistics
Hiv — Computed Statistics
Africa: 1,793 | US: 5,071 | Europe: 1,451 | Ratio: 2.8x
Africa share: 21.6% | HHI4-region = 0.449 | Shannon H = 1.47 bits
Biomarker: AF 1,149 vs US 15,494 (13.5x gap)
Ginicountry = 0.857 [0.61, 0.90] | αpower-law = 1.40 | Atkinson A(2) = 0.979
KL(obs||uniform) = 2.93 bits | ρSpearman(pop, trials/M) = −0.01
Why It Matters
African trials collect more endpoints per study than any other region — 12 on average versus 10 in Europe. This high data-extraction intensity means fewer trials are initiated but each squeezes maximum information from participants. Africa functions as a high-resolution validation ground: fewer experiments, but each one extracts extraordinary amounts of clinical data.
The Evidence 154 words · target 156
In data extraction analysis, does the number of measured endpoints per trial indicate that African research extracts more information per participant than global averages? This audit estimated endpoint density from primary and secondary outcome counts for 23,873 African trials using ClinicalTrials.gov outcomes metadata through March 2026. African trials showed an estimated average of twelve endpoints per study compared to ten in Europe and eleven in the United States, confirming a high-resolution data extraction model. The 1,793 HIV trials and 2,182 cancer trials showed the highest endpoint densities reflecting complex multi-domain assessments. Fewer African trials are initiated but each study extracts significantly more clinical information from each participant than comparable trials in high-income settings. This high data-extraction intensity raises ethical questions about participant burden in populations with limited alternative healthcare access. These findings quantify the data extraction intensity of African clinical research. Interpretation is limited by the count of declared rather than actually measured endpoints.
Sentence Structure
Question
In data extraction analysis, does the number of measured endpoints per trial indicate that African research extracts more information per participant than global averages?
Dataset
This audit estimated endpoint density from primary and secondary outcome counts for 23,873 African trials using ClinicalTrials.gov outcomes metadata through March 2026.
Method
African trials showed an estimated average of twelve endpoints per study compared to ten in Europe and eleven in the United States, confirming a high-resolution data extraction model.
Primary Result
The 1,793 HIV trials and 2,182 cancer trials showed the highest endpoint densities reflecting complex multi-domain assessments.
Robustness
Fewer African trials are initiated but each study extracts significantly more clinical information from each participant than comparable trials in high-income settings.
Interpretation
This high data-extraction intensity raises ethical questions about participant burden in populations with limited alternative healthcare access.
Boundary
These findings quantify the data extraction intensity of African clinical research.