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Table 3 The effect of STAT on secondary outcomes

From: Sustainable waiting time reductions after introducing the STAT model for access and triage: 12-month follow up of a stepped wedge cluster randomised controlled trial

 

Original trial

12-month follow up

Sensitivity analysis

Pre-intervention

Post intervention

0 to 12 month post intervention

9 to 12 month post intervention

n

1252

1861

3016

821

Appointments missed per patient, n

Mean (SD)

0.4 (0.9)

0.5 (0.7)

0.3 (0.7)

0.3 (0.7)

Adj Ratio (95% CI)

Reference

IRR: 1.18 (1.04 to 1.35)

IRR: 0.86 (0.69 to 1.07)

IRR: 0.78 (0.63 to 0.97)

Time from 1st to 2nd appointment, days, n

Mean (SD)

28.8 (20.0)

28.5 (18.5)

29.8 (20.5)

28.3 (19.0)

Adj Ratio (95% CI)

Reference

IRR: 1.03 (0.98 to 1.09)

IRR: 1.06 (0.94 to 1.19)

IRR: 1.04 (0.96 to 1.14)

Appointments in first 12 weeks, n

Mean (SD)

2.4 (2.1)

2.1 (1.6)

2.1 (1.6)

2.0 (1.6)

Adj Ratio (95% CI)

Reference

IRR 0.99 (0.93 to 1.05)

IRR: 0.94 (0.89 to 0.98)

IRR: 0.89 (0.73 to 1.10)

  1. Adj ratio Adjusted ratio indicates that other factors, such as potential confounders, have been included in the model
  2. IRR calculated using generalised linear mixed effects models