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. 2016 Feb 24;6(2):e009416. doi: 10.1136/bmjopen-2015-009416

Table 2.

Comparison of the patients who died within 30 days of hospital admission and patients who survived

Died within 30 days Alive after 30 days
Variable n=17 n=165 p Value
NT-ProBNP level 2700 [10 435] 1230 [2736] 0.01
Men 9 (53) 50 (30) 0.058
Age (years) 84.7±6.3 80.8±11.4 0.17
History of any cardiovascular disease 15 (88) 115 (70) 0.11
History of heart failure 2 (12) 24 (15) 0.76
Coronary artery disease 5 (29) 51 (31) 0.90
Prior myocardial infarction 3 (18) 15 (9) 0.31
Prior coronary revascularisation 2 (12) 12 (7) 0.51
Hypertension 10 (59) 81 (49) 0.45
Diabetes mellitus 6 (35) 26 (16) 0.04
Atrial fibrillation 6 (35) 33 (20) 0.14
Renal failure 2 (12) 8 (5) 0.23
Dementia 9 (53) 64 (39) 0.26
Prior TIA or stroke 2 (12) 28 (17) 0.58
Preoperative ASA score 3.4±0.5 3.3±0.6 0.25
RCRI 0.8±1.0 0.7±0.9 0.83
Perioperative troponin T elevation 11 (65) 55 (33) 0.01

Data are presented as median (IQR), count (%) or mean±SD.

ASA class, American Society of Anesthesiologists’ physical status classification; NT-proBNP, N-terminal fragment of pro-B-type natriuretic peptide; RCRI, Revised Cardiac Risk Index, Lee's score; TIA, transient ischaemic attack.