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Table 1: 
Vascular risk factors in patients with and without IPH defined on MRA
Risk FactorsIPH-Positive (n = 22)IPH-Negative (n = 31)P Value
Age (mean years)76.4 ± 9.4677.6 ± 9.43.6406
Sex: male, n (%)13 (59)9 (29).0286
Diabetes (%)9 (41)13 (42).9404
Hypertension (%)18 (82)30 (97).1474
Hyperlipidemia (%)18 (82)26 (84).8445
Atrial fibrillation (%)4 (18)3 (10).3676
Coronary artery disease (%)9 (41)14 (45).7583
Smoking (%)15 (68)19 (61).6062
Heart failure (%)3 (14)4 (13).9381
COPD (%)2 (9)4 (13).6660
Chronic kidney disease (%)7 (32)6 (19).2988
Stenosis severity: 95%–99% (%)1 (5)3 (10).6332
  • Note:—COPD indicates chronic obstructive pulmonary disease.