Cohort | Quartile 1 | Quartile 2, Odds Ratio (95% Confidence Interval) | Quartile 3, Odds Ratio (95% Confidence Interval) | Quartile 4, Odds Ratio (95% Confidence Interval) |
---|---|---|---|---|

All patients, n = 18 818 | Referent | 0.52 (0.30–0.90); P = .018 | 0.36 (0.22–0.58); P < .001 | 0.25 (0.18–0.37); P < .001 |

Patients by subgroup | ||||

Cardiac arrest, n = 377 | Referent | 0.70 (0.05–10.78); P = .802 | 0.22 (0.02–2.57); P = .229 | 0.23 (0.02–2.16); P = .198 |

Sepsis, n = 419 | Referent | 1.84 (0.12–29.21); P = .666 | 0.57 (0.05–7.11); P = .662 | 0.59 (0.05–7.31); P = .680 |

TBI, n = 729 | Referent | 0.62 (0.12–3.12); P = .560 | 0.72 (0.19–2.73); P = .629 | 0.21 (0.06–0.78); P = .020 |