TABLE 5.
Distribution of incidental findings by age and sex.
| Entire study (N = 579) | 50–59 years (N = 89) | 60–69 years (N = 263) | > 70 years (N = 227) | P-value (Chi-square) | Male (N = 240) | Female (N = 339) | P-value (Chi-square) | |
| WMH | 566(97.75%) | 85(95.51%) | 256(97.34%) | 225(99.12%) | 0.12 | 232(96.67%) | 334(98.53%) | 0.137 |
| Brain atrophy | 523(90.33%) | 52(58.43%) | 246(93.54%) | 225(99.12%) | < 0.001* | 231(96.25%) | 292(86.14%) | < 0.001* |
| EPVS | 490(84.63%) | 67(75.28%) | 216(82.13%) | 207(91.19%) | < 0.001* | 205(85.42%) | 285(84.07%) | 0.658 |
| CMBs | 226(39.03%) | 25(28.09%) | 98(37.26%) | 103(45.37%) | 0.013* | 101(42.08%) | 125(36.87%) | 0.206 |
| Paranasal sinusitis | 196(33.85%) | 25(28.09%) | 93(35.36%) | 78(34.36%) | 0.446 | 99(41.25%) | 97(28.61%) | 0.002* |
| Cavernous malformation | 11(1.90%) | 1(1.12%) | 3(1.14%) | 7(3.08%) | 0.246 | 4(1.67%) | 10(2.95%) | 0.322 |
| Venous malformation | 14(2.42%) | 4(4.49%) | 5(1.90%) | 5(2.20%) | 0.374 | 1(0.42%) | 10(2.95%) | 0.028* |
| Asymptomatic infarct | 44(7.60%) | 2(2.25%) | 17(6.46%) | 25(11.01%) | 0.019* | 36(15%) | 8(2.36%) | < 0.001* |
| Empty sella | 55(9.50%) | 11(12.36%) | 20(7.60%) | 24(10.57%) | 0.325 | 18(7.5%) | 37(10.91%) | 0.167 |
| Rathke’s cleft cyst | 52(8.98%) | 7(7.87%) | 29(11.03%) | 16(7.05%) | 0.284 | 23(9.58%) | 29(8.55%) | 0.67 |
| Pituitary adenoma | 11(1.90%) | 2(2.25%) | 5(1.90%) | 4(1.76%) | 0.960 | 2(0.83%) | 9(2.65%) | 0.114 |
| Falx cerebri ossification | 10(1.73%) | 2(2.25%) | 3(1.15%) | 5(2.20%) | 0.614 | 0(0%) | 10(2.95%) | 0.007* |
| Mastoiditis | 13(2.25%) | 3(3.37%) | 4(1.52%) | 6(2.64%) | 0.52 | 7(2.92%) | 6(1.77%) | 0.359 |
| Retention cysts of the maxillary sinus | 33(5.70%) | 6(6.74%) | 14(5.32%) | 13(5.73%) | 0.883 | 16(6.67%) | 17(5.01%) | 0.398 |
| Number of CSVD markers | ||||||||
| 0 | 3(0.52%) | 1(1.12%) | 2(0.76%) | 0(0%) | 0.347 | 1(0.42%) | 2(0.59%) | 0.775 |
| 1 | 26(4.49%) | 15(16.85%) | 10(3.8%) | 1(4.41%) | < 0.001* | 7(2.92%) | 19(5.6%) | 0.124 |
| 2 | 73(12.61%) | 23(25.84%) | 35(13.31%) | 15(6.61%) | < 0.001* | 26(1.3%) | 47(13.86%) | 0.279 |
| 3 | 275(47.5%) | 32(35.96%) | 128(48.67%) | 115(50.66%) | 0.055 | 114(47.5%) | 161(47.49%) | 0.997 |
| 4 | 202(34.89%) | 18(20.22%) | 88(33.46%) | 96(42.29%) | < 0.001* | 92(38.33%) | 110(32.45%) | 0.143 |
N (%). We did not show the abnormalities in less than 10 cases because the trend could not be observed clearly. *p < 0.05.