Table 3.

Patient characteristics per MRV-based thrombus age group

	Acute N = 27	Subacute N = 17	Old N = 12	Total N = 56
Age, years—mean ± SD	51.7 ± 16.0	54.1 ± 17.5	44.1 ± 15.2	50.8 ± 16.4
Age, years—categories
- < 40 years - 40 – 65 years - > 65 years	6 (22.2%) 15 (55.6%) 6 (22.2%)	4 (23.5%) 6 (35.3%) 7 (41.2%)	4 (33.3%) 6 (50.0%) 2 (16.7%)	14 (25.0%) 27 (48.2%) 15 (26.8%)
sex, male	16 (59.3%)	8 (47.1%)	5 (41.7%)	29 (51.8%)
Affected side*
- Left † - Right † - Bothsided	18 (66.7%) 8 (29.6%) 1 (3.7%)	17 (100.0%) 0 0	3 (25.0%) 8 (66.7%) 1 (8.3%)	38 (67.9%) 16 (28.6%) 2 (3.6%)
BMI—mean ± SD	28.1 ± 5.9	28.2 ± 3.7	29.2 ± 8.3	28.4 ± 5.9
BMI, categories
- < 25.0 - 25.0 – 29.9 - ≥ 30.0 - Unknown	9 (33.3%) 10 (37.0%) 7 (25.9%) 1 (3.7%)	4 (23.5%) 8 (47.1%) 5 (29.4%) 0	4 (33.3%) 5 (41.7%) 3 (25.0%) 0	17 (30.4%) 23 (41.1%) 15 (26.8%) 1 (1.8%)
Duration of complaints at MRV imaging, days—mean ± SD‡	8.5 ± 4.5	9.8 ± 5.5	14.0 ± 4.2	10.1 ± 5.2
Duration between MRV and start thrombolysis, days—mean ± SD	0.96 ± 2.0	1.59 ± 2.7	1.08 ± 1.93	1.2 ± 2.2
Duration of complaints at start thrombolysis, days—mean ± SD§	9.5 ± 5.1	11.4 ± 4.9	15.1 ± 4.0	11.3 ± 5.2
Duration of complaints at start thrombolysis, categories
- 0 – 7 days - 7 – 14 days - 14 – 21 days ¶ - > 21 days - Unknown	9 (33.3%) 12 (44.4%) 4 (14.8%) 1 (3.7%) 1 (3.7%)	2 (11.8%) 9 (52.9%) 6 (35.3%) 0 0	0 4 (33.3%) 7 (58.3%) 1 (8.3%) 0	11 (19.6%) 25 (44.6%) 17 (30.4%) 2 (3.6%) 1 (1.8%)
Successful thrombolysis§	19 (70.4%)	11 (64.7%)	2 (16.7%)	32 (57.1%)
Total time of thrombolysis, h—mean ± SD†	23.3 ± 7.4	47.9 ± 19.3	85.3 ± 16.3	44.1 ± 27.8
Complications, major bleeding	1 (3.7%)	2 (11.8%)	0	3 (5.4%)

Data are n (%) or mean (SD)

^*p = 0.002, ^†p = 0.000, ^‡p = 0.007, ^§p = 0.006, ^¶p = 0.026 ^ǁ