Table 1 Comparison of basic data between the experimental and control groups
From: Effect of 3D-printed hearts used in left ventricular outflow tract obstruction: a multicenter study
Variable | Experimental group (n = 22) | Control group (n = 24) | t value/χ2-value | P value |
|---|---|---|---|---|
Age (years, x ± s) | 49.2 ± 12.2 | 51.6 ± 11.1 | − 1.321 | 0.129 |
Male (n, %) | 9 (40.9) | 10 (41.6) | − 1.121 | 0.215 |
BMI | 21.2 ± 2.1 | 20.8 ± 2.5 | 1.790 | 0.106 |
Preoperative EF (%) | 61.0 ± 4.2 | 59.0 ± 4.1 | 1.308 | 0.115 |
LVP (mmHg) | 71.5 ± 30.5 | 69.5 ± 42.5 | 2.864 | 0.095 |
IST (mm) | 22.7 ± 5.3 | 21.9 ± 4.2 | 3.252 | 0.089 |
SAM (n, %) | 7 (31.8) | 6 (25.0) | 1.581 | 0.125 |
IDLV (mm) | 15.8 ± 4.7 | 16.5 ± 4.3 | − 3.693 | 0.082 |
LVFV (m/s) | 2.4 ± 0.5 | 2.7 ± 0.6 | − 3.991 | 0.078 |