| Forced Cox model | Forward stepwise Cox model | Backward stepwise Cox model | ||||||
---|---|---|---|---|---|---|---|---|---|
(N = 1591) | (N = 1591) | (N = 1591) | |||||||
β | t | HR(±95%CI) | β | t | HR(±95%CI) | β | t | HR(±95%CI) | |
Age (years) | 0.1024 | 16.81 | 1.68(1.58-1.79) | 0.1017 | 16.78 | 1.67(1.58-1.78) | 0.1029 | 17.01 | 1.69(1.59-1.79) |
Father status (codes 0–1) | 0.1422 | 2.19 | 1.15(1.01-1.31) | 0.1421 | 2.19 | 1.15(1.01-1.31) | 0.1436 | 2.21 | 1.15(1.02-1.31) |
Mother status (codes 0–1) | 0.2063 | 3.11 | 1.23(1.08-1.40) | 0.2121 | 3.22 | 1.24(1.09-1.41) | 0.2072 | 3.16 | 1.23(1.08-1.40) |
Family history of CVD (codes 0–1) | 0.0326 | 0.60 | 1.03(0.93-1.15) | = | = | = | = | = | = |
Corneal arcus (codes 0–1) | 0.2092 | 2.70 | 1.23(1.06-1.43) | 0.1988 | 2.57 | 1.22(1.05-1.42) | 0.2037 | 2.63 | 1.23(1.05-1.43) |
Physical activity (codes 1-2-3) | −0.0830 | −1.92 | 0.92(0.85-1.00) | = | = | = | −0.1042 | −2.51 | 0.90(0.83-0.98) |
Cigarettes smoked per day (N) | 0.0174 | 6.26 | 1.18(1.12-1.24) | 0.0177 | 6.37 | 1.18(1.12-1.25) | 0.0177 | 6.36 | 1.18(1.12-1.25) |
Body mass index (Kg/m2) | −0.1840 | −2.77 | 0.51(0.31-0.82) | −0.1711 | −2.62 | 0.53(0.33-0.85) | −0.2097 | −3.30 | 0.46(0.29-0.73) |
Body mass index2 [(Kg/m2)2] | 0.0033 | 2.70 | 1.90(1.19-3.04) | 0.0031 | 2.62 | 1.85(1.17-2.93) | 0.0036 | 3.03 | 2.02(1.28-3.18) |
Arm circumference (cm) | −0.0026 | −1.64 | 0.94(0.88-1.01) | −0.0034 | −2.21 | 0.92(0.86-0.99) | = | = | = |
Mean blood pressure (mmHg) | 0.0180 | 7.76 | 1.28(1.20-1.36) | 0.0186 | 8.24 | 1.29(1.21-1.36) | 0.0189 | 8.43 | 1.29(1.22-1.37) |
Heart rate (beats/min) | 0.0018 | 0.78 | 1.02(0.97-1.09) | = | = | = | = | = | = |
Serum cholesterol (mmol/l) | 0.0722 | 2.81 | 1.08(1.02-1.14) | 0.0758 | 2.97 | 1.08(1.03-1.14) | 0.0751 | 2.94 | 1.08(1.03-1.14) |
Forced expiratory volume (l/m2) | −0.4691 | −3.93 | 0.89(0.84-0.94) | −0.4815 | −4.05 | 0.89(0.84-0.94) | −0.4742 | −3.99 | 0.89(0.84-0.94) |
ECGm abnormalities (codes 0–1) | 0.0518 | 0.47 | 1.05(0.85-1.31) | = | = | = | = | = | = |
Prevalence CVD (codes 0–1) | 0.3658 | 2.85 | 1.44(1.12-1.85) | 0.3520 | 2.75 | 1.42(1.11-1.83) | 0.3905 | 3.05 | 1.48(1.15-1.90) |
Prevalence K (codes 0–1) | 2.1479 | 4.72 | 8.57(3.51-20.89) | 2.2056 | 4.87 | 9.08(3.73-22.07) | 2.1644 | 4.76 | 8.71(3.58-21.22) |
Prevalence DIAB (codes 0–1) | 0.2545 | 2.06 | 1.29(1.01-1.64) | 0.2502 | 2.02 | 1.28(1.01-1.64) | 0.2674 | 2.16 | 1.31(1.03-1.66) |
ROC ± standard error (±95%CI) |  | 0.829 ± 0.0137 (0.810-0.847) |  |  | 0.830 ± 0.0136 (0.811-0.849) |  |  | 0.830 ± 0.0137 (0.810-0.848) |  |