Table 3

Geometric mean of high-sensitivity cardiac troponin T (hs-cTnT) by quartiles of continuous covariates

CovariateQuartile (Qn) of covariateRatiop Value
Q1Q2Q3Q4
Demographic data
 Age, (52; 60; 66) years2.644.235.788.581.47<0.001
 BMI, (22; 25.2; 28.7) kg/m25.454.314.574.640.960.483
 Pack-years (0; 19.3; 35.1)2.864.356.266.951.36<0.001
Clinical data
 Heart rate, (57; 66; 75) 1/min4.684.194.016.231.090.155
 Systolic BP, (125; 135; 150) mm Hg3.314.876.015.781.230.001
Spirometry
 FVC, (2.50; 3.32; 4.36) litre8.144.973.233.790.76<0.001
 FEV1, (1.28; 2.30; 3.10) litre11.344.602.693.500.67<0.001
 FEV1/FVC, (47; 68; 77) %11.344.383.322.990.65<0.001
Laboratory data
 NT-proBNP, (3.7; 7.8; 16.4) pmol/l3.563.515.087.801.31<0.001
 Neutrophils, (2.8; 3.5; 4.5) 109/l3.534.044.647.641.28<0.001
 Haemoglobin, (13.5; 14.3; 15.1) g/dl6.564.154.494.360.900.087
 Creatinine, (0.72; 0.80; 0.93) mg/dl4.713.905.145.241.060.352
  • Ratio: (hs-cTnT)Qn/(hs-cTnT)Qn−1. Quartile limits in parentheses.

  • BMI; body mass index; BP, blood pressure; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 s.