Table 2
Non-attendance rates in control, telephone and text-messaging groups.
n
%
P
-value
Odds ratio (95% CI)
Control
309
23.0
Reference
Telephone reminder
314
13.7
0.003
0.53 (0.35 to 0.81)
Text messaging reminder
308
15.6
0.020
0.62 (0.41 to 0.93)