Table 2A. Attendance at first appointment offered (primary end point), attendance within 60 days of first appointment offered (secondary end point) and per cent cancelling an appointment by trial arm: intention-to-treat analysis.

Measure	Trial arm (1): routine invitation only (n=1118)	Trial arm (2): routine invitation with a text-message reminder (n=1122)	Difference χ2
Primary end point: attendance (at first appointment offered)	59.12% (661)	64.35% (722)	6.47*
Secondary end point: attendance (within 60 days of first appointment offered)	62.88% (703)	67.65% (759)	5.61*
% Cancelled appointment	2.77% (31)	5.44% (61)	10.09*

*P<0.05.