Association between smoking and in-hospital mortality
| Smoking status | OR (95% CI) | P value† | ||
| Unadjusted | Adjusted* | PS matching | ||
| Current smokers versus non-smokers | 0.40 (0.37 to 0.44) | 0.78 (0.69 to 0.88) | 0.80 (0.69 to 0.92) | <0.0001 |
| Ex-smokers versus non-smokers | 0.82 (0.72 to 0.93) | 0.89 (0.77 to 1.04) | 1.03 (1.02 to 1.04) | 0.1443 |
*Adjusted for age, gender, BMI, systolic blood pressure, heart rate, admission diagnosis, cardiac arrest, chest pain, ST elevation, anterior wall MI, Killip classification, risk factor (medical history of diabetes, hypertension, hyperlipidaemia, premature family CAD history, heart failure, renal failure and COPD), medical history (previous angina, PCI and CABG), creatinine level, haemoglobin level, GRACE risk score and primary PCI. The number of patients included in the adjusted model was 37 614.
†Adjusted p value.
BMI, body mass index; CABG, coronary artery bypass grafting; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; GRACE, Global Registry of Acute Coronary Events; MI, myocardial infarction; PCI, percutaneous intervention; PS, propensity score.