Table 1 Baseline characteristics of the study population.
Coffee consumption | |||||
|---|---|---|---|---|---|
Overall | Low < 3 cups/day | Moderate 3–4 cups/day | High > 4 cups/day | p-value | |
N (%) | 9009 | 5699 | 2333 | 977 | |
Demographics + biological data | |||||
Age | 63.0 {55.0, 69.0} | 64.0 {57.0, 70.0} | 60.0 {54.0, 67.0} | 59.0 {53.0, 66.0} | < 0.001 |
Female | 4610 {51.2} | 3099 {54.4} | 1148 {49.2} | 363 {37.2} | < 0.001 |
BMI kg/m2 | 26.1 {23.5, 29.1} | 26.0 {23.4, 29.1} | 26.0 {23.5, 29.1} | 26.7 {24.7, 29.5} | < 0.001 |
Obesity (BMI > 30 kg/m2) | 1694 (19.9) | 1047 (19.4) | 445 (20.1) | 202 (22.0) | 0.193 |
Smoking current | 1731 {19.3} | 827 {14.6} | 558 {24.0} | 346 {35.5} | < 0.001 |
Cardiovascular diseases | |||||
Arterial hypertension | 5637 {65.6} | 3732 {68.3} | 1346 {61.0} | 559 {60.8} | < 0.001 |
Diabetes mellitus | 694 {8.4} | 478 {9.1} | 146 {6.8} | 70 {7.8} | 0.006 |
Heart failure | 203 {5.1} | 59 {3.6} | 31 {4.5} | 0.047 | |
Myocardial infarction | 266 {3.0} | 176 {3.1} | 56 {2.4} | 34 {3.5} | 0.147 |
CAD | 582 {8.7} | 395 {9,4} | 125 {7.1} | 62 {8.4} | 0.016 |
PAD | 827 {91.7} | 528 {20.0} | 213 {19.3} | 86 {19.1} | 0.833 |
Laboratories | |||||
Cholesterol, mg/dl | 208.0 {181.0, 237.0} | 208.0 {181.0, 237.0} | 208.0 {182.0, 237.0} | 207.0 {182.0, 237.0} | 0.947 |
LDL, mg/dl | 121.0 {96.0, 146.0} | 119.0 {95.0, 144.0} | 122.0 {97.0, 146.0} | 124.0 {100.5, 149.0} | < 0.001 |
HDL, mg/dl | 62.0 {50.0, 76.0} | 63.0 {51.0, 77.0} | 63.0 {50.0, 76.0} | 57.0 {47.0, 70.0} | < 0.001 |
NT-proBNP, ng/l | 80.0 {44.0, 145.0} | 88.0 {49.0, 159.0} | 70.0 {38.0, 126.0} | 62.0 {34.0, 116.0} | < 0.001 |
Hemoglobin, g/dl | 14.3 {13.6, 15.1} | 14.3 {13.5, 15.1} | 14.3 {13.6, 15.1} | 14.6 {13.9, 15.3} | < 0.001 |
Medication | |||||
ACEi/ARBs | 1820 {21.2} | 1207 {22.1} | 434 {19.6} | 179 {19.4} | 0.023 |
Beta blockers | 1475 {17.5} | 1034 {18.9} | 316 {14.3} | 125 {13.5} | < 0.001 |
Diuretics | 173 {2.0} | 122 {2.2} | 35 {1.6} | 16 {1.7} | 0.153 |
Lipid lowering drugs | 1542 {17.9} | 1059 {19.4} | 340 {15.4} | 143 {15.5.} | < 0.001 |
Additives | |||||
Milk | 5966 {69.8} | 3803 {72.4} | 1549 {66.7} | 614 {63.0} | < 0.001 |
Sugar | 1126 {13.2} | 738 {14.0} | 281 {12.1} | 107 {11.0} | 0.007 |
Honey | 76 {0.9} | 60 {1.1} | 15 {0.6} | 1 {0.1} | 0.002 |
Sweetener | 419 {4.9} | 261 {5.0} | 104 {4.5} | 54 {5.5} | 0.411 |
No additives | 2842 {33.2} | 1566 {29.8} | 855 {36.8} | 421 {43.2} | < 0.001 |
Black/green tea | |||||
Never | 1480 {16.6} | 872 {15.4} | 423 {18.3} | 185 {19.1} | < 0.001 |
1–3/week | 4150 {46.4} | 2326 {41.1} | 1261 {54.5} | 563 {58.0} | < 0.001 |
≥ 4/week | 3311 {37.0} | 2457 {43.4} | 631 {27.3} | 223 {23.0} | < 0.001 |
Carbonated drinks | |||||
Never | 4338 {48.5} | 2886 {51.0} | 1060 {45.7} | 392 {40.6} | < 0.001 |
1–3/week | 4031 {45.1} | 2439 {43.1} | 1098 {47.3} | 494 {51.1} | < 0.001 |
≥ 4/week | 576 {6.4} | 333 {5.9} | 163 {7.0} | 80 {8.3} | < 0.001 |
Decaffeinated coffee | 0.131 | ||||
< 3/week | 776 {97.5} | 464 {98.1} | 231 {96.7} | 81 {96.4} | |
3–4/week | 12 {1.5} | 4 {0.8} | 7 {2.9} | 1 {1.2} | |
> 4/week | 8 {1.0} | 5 {1.1} | 1 {0.4} | 2 {2.4} | |