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Table 1 Eligibility criteria for participants

From: Protocol for a randomised controlled trial examining the impact of a web-based personally controlled health management system on the uptake of influenza vaccination rates

Inclusion criteria Exclusion criteria
1. Aged 18 or above. 1. Participants who did not complete registration process [excluded before randomization].
1. Access to the Internet, and email at least on a monthly basis. 2. Participants who self-reported having obtained an influenza vaccination in 2010 prior to enrolment in the study [excluded from analysis].
  3. Participants who self-reported to be influenced by other participants during the study to obtain (or not obtain) influenza vaccination [excluded from analysis].