Table 2.

Categories of online system users recorded in the computer log records at each data point (from January 2011 to May 2013)

	% (No.) registered patients at each data point in computer records
Usages of online appointment system by registered users	January to December 2011% (N)	January to December 2012% (N)	January to May 2013% (N)
1. Logged into web site but never used	79.2% (4737)	65% (3696)	63% (895)
2. Tried once and never used again	6.8% (407)	11% (624)	18% (256)
3. Used both online and phone-call services	2.5% (147)	4% (212)	4% (60)
4. Only used online system	11.5% (687)	20% (1110)	15% (217)
Total	100% (5978)	100% (5642)	100% (1428)