Table 1:
Patient and CCTA scanning characteristics
| ≤ 80 kVp (n = 377) | 90–100 kVp (n = 1889) | 110–120 kVp (n = 1662) | ≥ 130 kVp (n = 78) | p value | |
|---|---|---|---|---|---|
|
| |||||
| Patient characteristics | |||||
| Age, years | 61 (50–70) | 59 (50–68) | 59 (51–68) | 59 (52–68) | 0.71 |
| Male sex, % | 45 (166) | 54 (1027) | 63 (1048) | 70 (55) | < 0.001 |
| Height, cm | 167 (160 – 173) | 168 (160 – 175) | 171 (163 – 178) | 175 (168 – 181) | < 0.001 |
| Weight, kg | 65 (59 – 74) | 73 (64 – 83) | 85 (75 – 98) | 108 (91 – 124) | < 0.001 |
| BMI, kg/m2 | 24 (22 – 26) | 26 (23 – 28) | 29 (26 – 32) | 35 (31 – 40) | < 0.001 |
| Hypertension, % | 39 (149) | 54 (1026) | 50 (825) | 67 (52) | < 0.001 |
| Diabetes, % | 10 (37) | 14 (262) | 18 (296) | 22 (17) | < 0.001 |
| Dyslipidemia, % | 36 (135) | 32 (603) | 46 (757) | 47 (37) | < 0.001 |
| Smoker, % | 11 (42) | 18 (339) | 16 (265) | 19 (15) | 0.0084 |
| CCTA scanning characteristics | |||||
| Site experience, years | 11 (10–13) | 11 (8–13) | 12 (8–14) | 12 (8–14) | 0.049 |
| Modern CT (≥ 128-slices), % | 99 (373) | 94 (1783) | 88 (1460) | 73 (57) | < 0.001 |
| Scan length, mm | 130 (119 – 140) | 137 (124 – 144) | 138 (130 – 142) | 137 (124 – 142) | < 0.001 |
| Iterative reconstruction, % | 98 (368) | 81 (1526) | 82 (1359) | 68 (53) | < 0.001 |
| Scan technique, % | < 0.001 | ||||
| prospective | 86 (322) | 91 (1717) | 88 (1457) | 60 (47) | |
| retrospective | 14 (53) | 9 (167) | 12 (196) | 40 (31) | |
Data are presented as % (n) or median (interquartile range). Body mass index (BMI).