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Table 2 Segmented logistic regression analysis of care bundles for AMI and stroke: all sites combined, allowing for a ramp-up period of 12 weeks after introduction of the intervention

From: The use of segmented regression in analysing interrupted time series studies: an example in pre-hospital ambulance care

Parameter

Odds ratio (OR)

95% confidence interval for OR

p-value

AMI

   

Pre-intervention slope (secular trend, per month)

1.02

0.97 to 1.07

0.362

Change in intercept (immediate effect)

1.16

0.93 to 1.44

0.199

Change in slope (gradual effect, per month)

1.02

0.97 to 1.08

0.346

Stroke

   

Pre-intervention slope (secular trend, per month)

1.05

1.00 to 1.10

0.045

Change in intercept (immediate effect)

0.93

0.73 to 1.19

0.577

Change in slope (gradual effect, per month)

1.02

0.97 to 1.07

0.551

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Implementation Science

ISSN: 1748-5908