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. 2013 Jul 18;109(3):597–602. doi: 10.1038/bjc.2013.377

Table 2. Attendance within 120 days (primary end point), attendance at first appointment offered (secondary end point) and number changing between office hours and out of hours appointments.

Trial arm Primary end point: attendance Secondary end point: attendance at first appointment offered Change to office hours Change to OOH
Office hours
Standard (n=9410) 6900 (73.3%) 4176 (44.4%) 157 (2.3%)
With option to OOH (n=3510) 2678 (76.1%) 1599 (45.4%) 194 (7.2%)
Sum (n=12 929)
9578 (74.1%)
5775 (44.7%)

351 (3.7%)
OOH
Evening (n=3271) 2445 (74.8%) 1231 (37.6%) 907 (37.1%)
Weekend (n=3162) 2295 (72.6%) 1375 (43.5%) 572 (24.9%)
Sum (n=6433)
4740 (73.7%)
2606 (40.5%)
1479 (31.2%)

All arms
Total (n=19 362) 14 318 (73.9%) 8381(43.3%)    

Abbreviation: OOH=out-of-hours.