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Table 2 Contingency tables illustrating the effect of anatomical model-based planning on 30-day readmission and 30-day mortality. Fisher’s exact test was used to determine probability for the rejection of the stated null hypothesis

From: 3D printing for congenital heart disease: a single site’s initial three-yearexperience

30-day Readmission (anatomical model vs Traditional Planning): all included patients

Count Total%

No 30-day Readm.

30-day Readm.

Total

Fisher’s Exact Test

SoC

31

22.30%

78

56.12%

109

78.42%

Null Hypothesis:

• Probability of readmission is greater for surgeries planned with an anatomical model

P-value = 0.1609

3DP

12

8.63%

18

12.95%

30

21.58%

Total

43

30.94%

96

69.06%

139

100.0%