Observational Study
Copyright ©The Author(s) 2016.
World J Orthop. Dec 18, 2016; 7(12): 826-831
Published online Dec 18, 2016. doi: 10.5312/wjo.v7.i12.826
Table 3 Paper vs online after the introduction of the online database
Total elbow prosthesisRadio-capitellar prosthesisRadial head prosthesisRevision surgeryTotal
Questionnaires sent in total
Paper4952422100
Online20312843
Response rate
Paper91.90%100.00%83.30%100.00%92.00%
Online90.00%100.00%83.30%100.00%90.70%
Completeness of questionnaires
Paper48.90%40.00%65.00%59.10%54.40%
Online100.00%100.00%100.00%100.00%100.00%
Mean age (yr)
Paper (SD)68 (8)58 (8)50 (14)63 (10)63 (12)
Online (SD)68 (8)50 (3)50 (13)55 (16)59 (14)
Mean age (yr)
Responders (SD)68 (8)55 (7)50 (13)61 (13)62 (13)
Non-responders (SD)67 (10)-36 (13)-52 (19)