Baseline characteristics of patients after Pipeline embolization device (PED) treatment
| Characteristics | Non-ISS (n=390) | ISS (n=69) | Total (n=459) | P value |
| Stenosis grade (last follow-up) (non-ISS=390, ISS=60) | – | |||
| No stenosis (SR<50%) | 399 (100%) | 0 (0%) | 399 (86.9%) | |
| Mild stenosis (50%≤SR<70%) | 0 (0%) | 32 (53.3%) | 32 (7.0%) | |
| Severe stenosis (70%≤SR<99%) | 0 (0%) | 10 (16.7%) | 10 (2.2%) | |
| Occlusion (SR=100%) | 0 (0%) | 18 (30%) | 18 (3.9%) | |
| Age | 54 (48–61) | 52 (46–52) | 54 (47–61) | 0.117 |
| Male | 122 (31.3%) | 29 (42.0%) | 151 (32.9%) | 0.080 |
| Height (cm) | 164 (160–170) | 165 (160–170) | 164 (160–170) | 0.443 |
| Weight (kg) | 65 (59–75) | 68 (60–75) | 65 (59–75) | 0.764 |
| BMI | 24.61 (22.53–26.95) | 24.46 (23.14–26.42) | 24.56 (22.67–26.73) | 0.935 |
| Fat (BMI≥28 kg/m2) | 64 (16.4%) | 4 (5.8%) | 68 (14.8%) | 0.022 |
| Diabetes mellitus | 35 (9.0%) | 6 (8.7%) | 41 (8.9%) | 0.940 |
| Dyslipidemia | 163 (41.8%) | 25 (36.2%) | 188 (41.0%) | 0.386 |
| Hypertension | 165 (42.3%) | 29 (42.0%) | 194 (42.3%) | 0.577 |
| Pre-SAH | 20 (5.1%) | 3 (4.3%) | 23 (5.0%) | 1.000 |
| Pre-ischemic stroke | 28 (7.2%) | 4 (5.8%) | 32 (7.0%) | 0.874 |
| Coronary heart disease | 28 (7.2%) | 6 (8.7%) | 34 (7.4%) | 0.658 |
| Current smoking | 61 (15.6%) | 13 (18.8%) | 74 (16.1%) | 0.505 |
| Regular alcohol drinkers | 55 (14.1%) | 11 (15.9%) | 66 (14.4%) | 0.161 |
| Allergic history | 52 (13.3%) | 6 (8.7%) | 58 (12.6%) | 0.285 |
| Preinterventional operation | 25 (6.4%) | 3 (4.3%) | 28 (6.1%) | 0.699 |
BMI, body mass index; ISS, in-stent stenosis; SAH, subarachnoid hemorrhage; SR, stenosis rate.