First engine Second engine
N incidents Attendance time (seconds: regression coefficient) % take longer than 12 minutes (rate ratio) % take longer than 10 minutes (rate ratio) N incidents Attendance time (seconds: regression coefficient)
LTN impact [Model A] Not in or next LTN 21,104 0 1 1 3098 0
LTN boundary 855 -15.6 (-25.6, -5.6)** 0.57 (0.29, 1.12) 0.61 (0.39, 0.96)* 231 -10.4 (-33.7, 12.9)
Inside LTN 1384 8.0 (-0.7, 16.7) 0.90 (0.58, 1.39) 1.13 (0.80, 1.61) 537 -7.9 (-27.9, 12.0)
LTN impact, by time since implementation [Model B] Not in or next LTN 21,104 0 1 1 3098 0
LTN boundary, <1 year 267 -16.4 (-32.5, -0.2)* 0.69 (0.25, 1.85) 0.68 (0.36, 1.29) 45 -9.3 (-52.9, 34.4)
LTN boundary, ≥1 year 588 -15.3 (-27.0, -3.6)* 0.51 (0.23, 1.12) 0.57 (0.34, 0.96)* 186 -10.6 (-36.1, 14.8)
Inside LTN, <1 year 390 8.8 (-4.8, 22.4) 0.83 (0.36, 1.93) 1.08 (0.63, 1.86) 56 -9.5 (-49.4, 30.3)
Inside LTN, ≥1 year 994 7.7 (-2.3, 17.7) 0.93 (0.54, 1.60) 1.15 (0.80, 1.67) 481 -7.6 (-28.9, 13.6)