Table 2 In-hospital outcomes and complications of the study population in NIS databases

 In-hospital mortality

0.15

0.27

0.15

0.537

 Length of stay

(mean ± std err) (days)

1.32 ± 0.02

1.59 ± 0.11

1.33 ± 0.02

0.013

 Length of stay > 1 day

12.85

15.99

12.94

0.068

 Cost of care

(mean ± std err) (USD)

119254.9 ± 1993.1

121510.2 ± 4462.8

119324.2 ± 2003.6

0.561

In-hospital complications

 Ischemic stroke

0.16

0.27

0.17

0.614

 Hemorrhagic stroke

0.08

0.00

0.08

0.591

 Intra-/peri-procedure stroke

0.04

0.00

0.04

0.690

 Systemic embolism

0.09

0.00

0.09

0.554

 Open/percutaneous pericardial drainage

1.12

2.44

1.16

0.020

 Other pericardial complications

0.73

1.63

0.76

0.055

 Major bleed^a

0.14

1.15

0.18

< 0.001

 Device complications

0.17

0.27

0.17

0.633