Table 3 Results of segmented regression analysis of the CDSS impact of On Scene Time (OST)

Full regression model

Intercept

11.712

1.001

11.703

< 0.001

Slope before CDSS

0.185

0.136

1.363

0.188

Change in level after CDSS

0.670

1.335

0.502

0.621

Change in slope after CDSS

- 0.073

0.192

- 0.382

0.702

The most parsimonious model

Intercept

11.772

0.659

17.855

< 0.001

Slope before CDSS

0.188

0.046

4.080

< 0.001