| Pre-QI phase | Post-QI phase |  | P* | ||||
---|---|---|---|---|---|---|---|---|
(N = 270) | Initial bundle (2019.1–3) n = 61 | PDSA1 (2019.4–5) n = 46 | PDSA2 (2019.6–8) n = 64 | PDSA3 (2019.9–2020.3) n = 159 | PDSA4 (2020.4–12) n = 150 | ALL N = 480 |  | |
Temperature, mean \(\pm\) SD | 35.5 \(\pm\) 0.7 | 36.1 \(\pm\) 0.7 | 36.2 \(\pm\) 0.5 | 36.0 \(\pm\) 0.7 | 35.9 \(\pm\) 0.7 | 36.2 \(\pm\) 0.6 | 36.0 \(\pm\) 0.6 |  < 0.001 |
AH, n (%) | 259(95.9) | 46(75..4) | 32(69.6) | 50(78.1) | 126(79.2) | 88(58.6) | 342(71.3) |  < 0.001 |
AMSH, n (%) | 185(68.5) | 9(14.8) | 10(21.7) | 19(29.7) | 68(42.8) | 38(25.3) | 144(30.0) |  < 0.001 |
Normothermia, n (%) | 11(4.1) | 14(23.0) | 14(30.4) | 14(21.9) | 32(20.1) | 61(40.7) | 136(28.3) |  < 0.001 |
Hyperthermia, n (%) | 0(0.0) | 1(1.6) | 0(0.0) | 0(0.0) | 0(0.0) | 1(0.7) | 2(0.4) | 0.288 |