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. 2021 Nov 2;11(11):e052004. doi: 10.1136/bmjopen-2021-052004

Table 4.

Characteristics of the study sample divided by the recommended rule-out cut-off of high-sensitivity cardiac troponin T for non-ST segment elevation myocardial infarction in case of no relevant increase within 2 hours (14 ng/L)

hsTnT (ng/L) <14 ng/L n ≥14 ng/L n
Age (years) 76.5±4.3 790 80.3±5.6 339
Female (%) 54.4 790 23.3 339
Body mass index (kg/m2) 27.7±4.3 790 28.8±4.9 335
Diabetes (%) 17.3 790 31.3 339
Hypertension (%) 72.1 788 76.6 338
BP <160/100 mm Hg (%) 92.0 789 89.7 339
Tobacco use (present/past) (%) 41.0 790 53.1 339
Low-density lipoprotein (mg/dL) 148.2±33.8 701 139.1±34.2 285
Coronary artery disease (self-reported) (%) 11.8 790 29.6 338
Heart failure (self-reported) (%) 11.5 788 21.7 336
eGFRcrea (mL/min/1.73 m2) 70.4±14.0 779 59.5±17.2 337
NT-proBNP (pg/mL) 265.6±355.5 790 963.3±2349.0 339
Heart rate (beats per minute) 69.0±11.0 67.8±11.8 338
Regular rhythm (%) 93.0 599 81.0 248
LVMi (g/m2) 103.6±28.1 472 121.4±36.3 179
Left atrial volume/BSA (mL/m2) 37.5±14.0 575 44.5±18.1 235
E/mean e’ 11.1±3.4 530 12.3±4.5 210
Diastolic dysfunction (%) 60.6 563 74.9 227
Ejection fraction (%) 60.7±6.9 582 58.9±9.2 237

Shown are mean and SD or proportions.

E/e’: ratio of the transmitral early peak velocity by pulsed wave Doppler over mean early diastolic velocity determined at the septal and lateral mitral annulus by tissue Doppler. Diastolic dysfunction determined according to ref 23.

BP, blood pressure; BSA, body surface area; eGFRcrea, glomerular filtration rate estimated from serum creatinine; hsTnT, high-sensitivity cardiac troponin T; LVMi, ratio of left ventricular mass to body surface area; NT-proBNP, N-terminal prohormone B-type (brain) natriuretic peptide.