Pilot implementation of short message service for randomisation in a multisite pragmatic factorial clinical trial in Kenya

Table 4 Total SMSes processed during the testing and piloting phases of the study

Text request category	Count	Percentage (%)
Duplicate attempts	22	4
Exhausted sequence	1	0.2
Invalid non-authorised request	151	26
Non-authorised valid request	2	0.3
Valid successful randomisation	402	69
Unregistered user	2	0.3
Total	580	100

ISSN: 2055-5784