Table 2

Adjusted 30-day and in-hospital mortality by time of admission for PPCI

Adjusted ORa for off-hours (95% CI)*Adjusted ORb for off-hours (95% CI)†
30-day mortality1.13 (1.01 to 1.25; p=0.02)1.08 (0.97 to 1.20; p=0.15)
In-hospital mortality1.16 (1.02 to 1.32; p=0.02)1.09 (0.95 to 1.24; p=0.18)
  • *Adjusted ORa—obtained using a hierarchical logistic regression model that adjusted for AMG risk score, sex, Index of Multiple Deprivation score, previous acute myocardial infarction, angina, peripheral vascular disease, cerebrovascular disease (stroke), percutaneous coronary intervention, coronary artery bypass grafting, chronic renal failure, diabetes, smoking status, hypercholesterolemia, hypertension, asthma/chronic obstructive pulmonary disease, family history of coronary heart disease, annual hospital PPCI volume and month and year of admission. Hospitals included as random intercepts (46 ‘24/7’ interventional centres included).

  • †Adjusted ORb—all variables from ORa plus DTB time.

  • AMG, adjusted mini-Global Registry of Acute Coronary Events; DTB, door-to-balloon; p, p-value; PPCI, primary percutaneous coronary intervention.