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Table 1 Segmented logistic regression analysis of care bundles for AMI and stroke: all sites combined

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 0.96 to 1.08 0.542
Change in intercept (immediate effect) 1.03 0.81 to 1.30 0.787
Change in slope (gradual effect, per month) 1.04 0.98 to 1.10 0.198
Stroke    
Pre-intervention slope (secular trend, per month) 1.05 1.00 to 1.10 0.038
Change in intercept (immediate effect) 0.93 0.75 to 1.14 0.465
Change in slope (gradual effect, per month) 1.02 0.97 to 1.07 0.517