Table 6 Illustrating the effect on sample size and participant characteristics at baseline of varying participant selection criteria in the stroke trial. CPRD, Clinical Practice Research Datalink.
| Â | Number | Age | Gender | Systolic blood pressure | Total cholesterol |
|---|---|---|---|---|---|
| Â | Â | Mean (SD) | Female (%) | Mean (SD) | Mean (SD) |
Participants with prevalent stroke | Â | Â | Â | Â | Â |
All Non-trial CPRD practices | 47,887 | 72.2 (14.0) | 23,179 (48) | 134.4 (15.3) | 4.4 (1.0) |
Trial practices | 11,391 | 72.5 (14.0) | 5,490 (48) | 134.5 (15.6) | 4.4 (1.0) |
Participants with incident stroke since start of CPRD record | Â | Â | Â | ||
All Non-trial CPRD practices | 27,971 | 72.5 (13.4) | 13,369 (48) | 134.8 (15.1) | 4.4 (1.0) |
Trial practices | 6,296 | 72.5 (13.4) | 2,950 (47) | 135.0 (15.4) | 4.4 (1.0) |
Participants with incident stroke within two years of intervention start date | Â | Â | |||
All Non-trial CPRD practices | 7,530 | 71.4 (14.0) | 3,629 (48) | 136.6 (15.6) | 4.5 (1.10) |
Trial practices | 1,706 | 72.0 (14.1) | 797 (47) | 136.3 (16.5) | 4.5 (1.10) |