Table 1: Clinical Characteristics of Patients with Primary and Secondary RP

Primary RP n=60 Secondary RP n=21 P
Mean Age, yrs (range) 47 (14-84) 51 (21-83) n.s
Females, n (%) 44 (73) 18 (86) n.s
Mean Body-Mass Index, kg/m2 (range) 22 (17-32) 24 (18-32) n.s
Hypertension, n (%) 7 (12) 5 (19) n.s
Diabetes mellitus, n (%) 4 (7) 1 (5) n.s
Hypercholesterolemia, mmol/l (SD) 5.3 (± 1.1) 4.3 (± 0.9) n.s
Smoking, n (%) 21 (35) 9 (43) n.s
Coronary artery disease, n (%) 0 (0) 1 (5) n.s
Cerebrovascular disease, n (%) 2 (3) 1 (5) n.s
Peripheral arterial disease, n (%) 4 (7) 2 (10) n.s
Systolic Blood Pressure, mmHg (SD) 124 (± 22) 125 (± 23) n.s
Diastolic Blood Pressure, mmHg (SD) 80 (±12) 80 (±10) n.s
Homocysteine, µmol/l (range) 10.6 (5-35) 11.5 (6-18) n.s
CRP, mg/l (range) 3.5 (1-10) 6.8 (0-40) n.s