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. 2021 Jun 14;11(6):884. doi: 10.3390/biom11060884

Table 6.

Subgroup analysis for participants’ responses on the ratings for VR and 3DPHM a.

Option Doctors’ Group,
n = 9
Non-doctors’ Group,
n = 20
Mann-Whitney U-Value p-Value
Question
Rate the usefulness of VR models in medical education 4 (11.22) 4 (16.70) 56.00 0.07
Rate the usefulness of 3DPHM in medical education 4 (11.11) 5 (16.75) 55.00 0.07
Rate the usefulness of VR models in pre-operative planning 4 (11.06) 4 (16.77) 54.50 0.07
Rate the usefulness of 3DPHM in pre-operative planning 4 (12.39) 4.5 (16.18) 66.50 0.23

3DPHM, 3D printed heart models; VR, virtual reality. a Data are median score (mean rank).