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Table 1 Numbers of participants involved in large-scale clinical trials to which questionnaires were sent, and number of participants involved in trials that responded

From: Funding and infrastructure among large-scale clinical trials examining cardiovascular diseases in Japan: evidence from a questionnaire survey

Number of participants in clinical trial Responded trial*
n (%)
Not-responded trial*
n (%)
Total
n (%)
< 999 24 (38.1%) 28 (50.0%) 52 (43.7%)
1,000 - 2,999 19 (30.2%) 14 (25.0%) 33 (27.7%)
3,000 - 9,999 15 (23.8%) 7 (12.5%) 22 (18.5%)
≥ 10,000 - 3 (4.8%) 6 (10.7%) 9 (7.6%)
Unknown or no target number 2 (3.2%) 1 (1.8%) 3 (2.5%)
Total 63 (100%) 56 (100%) 119 (100%)
  1. * Proportions (%) in all responding trials (63 trials) or all not-responded trials (56 trials) are shown.
  2. † Proportions (%) in all trials (119 trials) are shown.