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. 2015 Dec 16;137(2):254–262. doi: 10.1378/chest.09-0765

Table 2.

Comparison of Pulmonary Artery Obstruction Improvement Scales, Comparing Two Treatments for PTE

24 h
14 d
Qualitative Changea rt-PA 100 mg (n = 48) rt-PA 50 mg (n = 55) P rt-PA 100 mg (n = 48) rt-PA 50 mg (n = 55) P
Significant improvement 30 (62) 33 (60) .297 29 (60) 33 (60) .241
Slight improvement 10 (21) 13 (24) 14 (29) 16 (29)
No change 6 (13) 3 (5) 3 (6) 5 (9)
Worse 2 (4) 6 (11) 2 (4) 1 (2)
Any improvement 40 (83.3) 46 (83.6) .967 43 (89.6) 49 (89.1) .936

Data presented are number (%) of patients. Improvements of pulmonary artery obstruction from baseline between two treatments were compared. See Table 1 for expansion of abbreviations.

a

Any improvement (%) = (significant + slight)/total, which indicates the percentage of overall improvement. Significant improvement = obstruction decreased by ≥ 75%; slight improvement = obstruction decreased by ≥ 25% but < 75%; no change = obstruction reduced by < 25%; worse = obstruction increased in score index.