Assessing the reliability of self-reported weight for the management of heart failure: application of fraud detection methods to a randomised trial of telemonitoring

Table 2 Alerts triggered by patients with and without end-digit preference during the six-month trial period (95% confidence intervals)

	End-digit preference (n = 105)	No end-digit preference (n = 535)
Mean number of alerts (Tele-HF)^a	2.9 (2.3 to 3.5)	2.3 (2.2 to 2.5)
Mean number of alerts (2 pound)^b	3.2 (2.6 to 3.7)	2.6 (2.4 to 2.7)

^aA difference of more than three pounds in either direction from the first-recorded weight
^bA difference of more than two pounds in either direction from one day to the next

ISSN: 1472-6947