Table 2B 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: per-protocol analysis

From: Text-message reminders increase uptake of routine breast screening appointments: a randomised controlled trial in a hard-to-reach population

Measure

Subgroup of the control population that had a mobile number recorded on the GP system ( n =435)

Subgroup of the intervention population that had a mobile number recorded on the GP system ( n =456)

Difference χ 2

Primary end point: attendance (at first appointment offered)

59.77% (260)

71.71% (327)

14.12**

Secondary end point: attendance (within 60 days of first appointment offered)

62.53% (272)

73.90% (337)

13.32**

% Cancelled appointment

2.30% (10)

6.80% (31)

10.27*

  1. *P<0.05; **P<0.001.
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