Table 1.
Measurements of the diameters of normal un-indexed coronary artery segments among samples along with gender comparisons (n = 933).
| CAS | Total samples | Mean ± SD (mm) (n:933) |
Male samples | Mean ± SD (mm) (n:521) |
Female samples | Mean ± SD (mm) (n = 412) |
t-value | p-value |
|---|---|---|---|---|---|---|---|---|
| LMCA | 927 | 4.16 ± 0.70 | 518 | 4.24 ± 0.70 | 409 | 4.07 ± 0.66 | −3.876 | <0.001∗ |
| LAD-o | 930 | 3.18 ± 0.62 | 518 | 3.24 ± 0.63 | 412 | 3.10 ± 0.59 | −3.692 | <0.001∗ |
| LAD-p | 929 | 3.22 ± 0.60 | 520 | 3.29 ± 0.59 | 409 | 3.13 ± 0.58 | −3.959 | <0.001∗ |
| DIAG | 912 | 1.76 ± 0.44 | 509 | 1.82 ± 0.45 | 403 | 1.69 ± 0.40 | −4.765 | <0.001∗ |
| LCX-o | 933 | 3.04 ± 0.62 | 521 | 3.11 ± 0.61 | 412 | 2.97 ± 0.62 | −3.459 | <0.001 |
| LCX-p | 931 | 3.02 ± 0.62 | 521 | 3.09 ± 0.62 | 410 | 2.94 ± 0.61 | −3.732 | <0.001∗ |
| OM | 915 | 2.10 ± 0.50 | 513 | 2.13 ± 0.51 | 402 | 2.06 ± 0.49 | −1.894 | <0.059 |
| RCA-o | 917 | 3.15 ± 0.66 | 508 | 3.24 ± 0.66 | 409 | 3.03 ± 0.65 | −4.647 | <0.001∗ |
| RCA-p | 926 | 3.05 ± 0.65 | 515 | 3.14 ± 0.66 | 411 | 2.95 ± 0.62 | −4.269 | <0.001∗ |
| RAM | 102 | 2.25 ± 0.49 | 61 | 2.28 ± 0.52 | 41 | 2.21 ± 0.46 | −0.611 | <0.542 |
p < 0.001∗ indicates significant difference between coronary artery measurements of males and females; Abbreviations: n-normal samples, TS-Total Samples, MS-Male samples, FS-Female samples, LMCA - Left main coronary artery, LAD (O, P) - Left anterior descending artery (Ostium, Proximal part), DIAG - Diagonal branch of left anterior descending artery, LCx (O, P) - Left circumflex coronary artery (Ostium, Proximal part), OM - Obtuse Marginal branch of left circumflex coronary artery, RCA (O, P) - Right coronary artery (Ostium, Proximal part), RAM – Ramus branch of coronary artery.
Statistical test used: Mean ± SD, Independent-t test.