Table 2 Baseline treatment, outcomes
Items |  ≥ 80 years (n = 609) | 65-79 years (n = 2734) |  < 65 years (n = 4095) | P values |
|---|---|---|---|---|
High risk n (%) | 15 ( 2.5%) | 110 (4.0%) | 185 (4.5%) | 0.155 |
Thrombolytic therapy as initial treatment n (%) | 13 (2.2%) | 286 (10.7%) | 607 (15.1%) | < 0.001 |
Anticoagulation as initial treatment n (%) | 524 (86%) | 2304 (84.3%) | 3395 (82.9%) | 0.083 |
Surgery thrombectomy n (%) | 1 (0.2%) | 19 (0.7%) | 31 (0.8%) | 0.258 |
Interventional thrombectomy n (%) | 0 (0.0%) | 13 (0.5%) | 13 (0.3%) | 0.153 |
IVC filter n (%) | 26 (4.4%) | 112 (4.2%) | 248% (6.2) | 0.001 |
INR up to the standard when discharge n (%) | 276 (73.2%) | 1470 (75%) | 2282 (76.9%) | 0.233 |
All cause death n (%) | 45 (7.4%) | 115 (4.2%) | 93 (2.3%) | < 0.001 |
Bleeding n (%) | 32 (7.1%) | 127 (6.4%) | 176 (6.2%) | 0.723 |
Major bleeding n (%) | 10 (2.2%) | 40 (2.0%) | 63 (2.2%) | 0.901 |
Days of stay (day) | 15 (11, 21) | 14 (10, 20) | 15 (10, 20) | 0.072 |
Treatment interval (day) | 8 (4,14) | 8 (4,14) | 7 (3,13) | 0.107 |