Table 3

Centre-wise attrition of DDSS usage and study data

Centre A

Centre B

Centre C

Centre D

Total


Patients seen in PAU

2679

1905

1974

2437

8995

Medical patients seen in PAU

2201

1383

1405

1914

6903

Number eligible for diagnostic decision support

unknown

unknown

unknown

unknown

unknown

DDSS attempts

338

118

52

87

595

DDSS successful log in

unknown

unknown

unknown

unknown

226*

Step 1 completed†

47

26

45

59

177

Steps 1&2 completed

30

25

20

50

125

Medical records available

24

24

16

40

104


* Each successful log in was automatically provided a unique study identifier which was not centre-specific. The number of successful log-ins was thus calculated as the total number of study identifiers issued by the trial website.

† Step 1 completed indicates that following successful log-in, the subject entered data on the first screen, i.e. patient details.

Ramnarayan et al. BMC Medical Informatics and Decision Making 2006 6:37   doi:10.1186/1472-6947-6-37

Open Data