SRTS Intervention

Changepoint (δ), number of quarters from January 2001

30.5

(30.02, 30.98)

β0 (Prechangepoint intercept)

1.25

(0.90, 1.58)

β1 (Prechangepoint slope)

0.03

(0.02, 0.05)

β2 (Pre and post intercept difference)

−1.68

(−2.59, −0.84)

β3 (Pre and post slope difference)

0.04

(−0.1, 0.17)

β0 + β2 (Postchangepoint intercept)

−0.43

(−1.45, 0.52)

β1 + β3 (Postchangepoint slope)

0.07

(−0.06, 0.21)

NonSRTS Intervention

Changepoint (δ), number of quarters from January 2001

10.49

(10.02, 10.97)

β0 (Prechangepoint intercept)

4.79

(4.74, 4.85)

β2 (Pre and post intercept difference)

−0.29

(−0.36, −0.27)

β0 + β2 (Postchangepoint intercept)

4.50

(4.46, 4.53)
