From: Intracranial internal carotid artery calcification is not predictive of future cognitive decline
 | Total (n=230) | Control (n=106) | Converter (n=52) | Impaired (n=72) | p-value§§ |
---|---|---|---|---|---|
Age, years (mean ± SD§) | 73.7±6.7 | 73.2±6.6 | 73.1±6.7 | 74.8±6.9 | 0.418 |
Sex | |||||
 Men (n (%)) | 121 (52.6) | 54 (50.9) | 26 (50) | 41 (56.9) | 0.669 |
 Women (n (%)) | 109 (47.7) | 52 (49.1) | 26 (50) | 31 (43.1) | |
Race | |||||
 Caucasian (n (%)) | 197 (85.6) | 93 (87.8) | 43 (82.7) | 61 (84.7) | 0.466 |
 African-American (n (%)) | 25 (10.9) | 11 (10.4) | 6 (11.5) | 8 (11.2) | |
 Native American (n (%)) | 1 (<1) | 0 (0) | 1 (1.9) | 0 (0) | |
 Unknown (n (%)) | 7 (3) | 2 (1.8) | 2 (3.9) | 3 (4.1) | |
MMSE score (median (Q1–Q3))§ | 29 (28–30) | 29 (29–30) | 29 (28–30)### | 28 (26–29)*** | <0.001 |
CDR-SB (median (min–max)) | 0 (1) | 0 (0–0.5) | 0 (0–0.5)### | 1.5 (0.5–6)*** | <0.001 |
PACC score (median (Q1–Q3)) | 0.04 (−0.21–0.25) | 0.13 (−0.03–0.41) | 0.084 (−0.15–0.23)# | −0.23 (−0.41–0.04)*** | <0.001 |
WMH volume, mm3 (mean ± SD) | 16,072±24,128 | 18,024±19,131 | 21,819±18,562 | 29,603±26,163** | 0.005 |
Ln ICA Ca score (median (Q1–Q3)) | 3.2 (0–4.8) | 3.4 (0.69–4.8) | 2.9 (0–4.05) | 3.2 (0–5.2) | 0.349 |
Ln ICA Ca volume (median (Q1–Q3)) | 3.7 (0–4.9) | 3.94 (1.55–4.96) | 3.6 (0–4.4) | 3.5 (0–5.2) | 0.520 |
Total hippocampal volume, mm3 (mean ± SD) | 7004±967.6 | 7397±793 | 6991±844# | 6397±1008*** | <0.001 |
AD cortical signature thickness, mm (mean ± SD) | 2.5±0.15 | 2.5±0.12 | 2.5±0.13# | 2.4±0.17*** | <0.001 |
Centiloid (mean ± SD) | 6.9 (69.9) | 3.4±35.3 | 66.5±83.2 | 15.3±75.1*** | <0.001 |
Amyloid positivity (negative/positive) | 114/116 | 70/36 | 23/29 | 21/51 | <0.001 |