TABLE 1.
Descriptive and demographic characteristics of the study sample.
| Characteristics | Participants (N = 633) |
|---|---|
| Sex (female) | 324 (51.2) |
| Age (years) | 69.3 (5.46) |
| APOE ε4 | |
| None | 444 (70.2) |
| 1 allele | 168 (26.5) |
| 2 alleles | 21 (3.3) |
| Prevalent stroke | 10 (1.6%) |
| BMI (kg/m2) | 27.4 (4.15) |
| Hypertension (yes) | 352 (55.6) |
| Diabetes (yes) | 59 (9.3) |
| Dyslipidemia (yes) | 336 (53.1) |
| Smoking history | |
| Never | 218 (34.4) |
| Current | 112 (17.7) |
| Former | 302 (47.7) |
| Missing | 1 (0.2) |
| Alcohol intake (gr/day) | 8.38 (9.14) |
| ICAC prevalence | 496 (78.4) |
| ICAC volume (mm3) a | 50.8 (177) |
| ICAC subtype b | |
| Intimal | 293 (59.1) |
| IEL | 131 (26.4) |
| Mixed | 72 (14.5) |
| VBAC prevalence | 84 (13.3) |
| VBAC volume (mm3) c | 0, 304 |
| Amyloid prevalence | 104 (16.4) |
| Amyloid PET SUVR a | 0.986 (0.0951) |
Note: Continuous values are reported as mean (standard deviation) and categorical variables as number (percentage).
a
Measure is presented as median (interquartile range).
b
Based on N = 496 participants with prevalent ICAC.
c
Measure is presented as minimum, maximum.
Abbreviations: APOE, apolipoprotein E; BMI, body mass index; ICAC, internal carotid artery calcification; IEL, internal elastic lamina; PET, positron emission tomography; SUVR, standardized uptake value ratio; VBAC, vertebrobasilar artery calcification.