Comparison of half-dose alteplase and LMWH in intermediate-high risk pulmonary embolism: a single-center observational study.

Although one-month and one-year mortality rates were lower in the thrombolytic group, this difference did not reach statistical significance.

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The study may be underpowered to detect statistically significant differences in outcomes such as mortality, and several p-values approaching significance raise the possibility of a type II error.

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