Characterization of Trajectories of FTR
According to GBTM model grouping selection, three different FTR
longitudinal trajectory groups were
determined in patients undergoing MVR(Figure 2), with polynomial order
1, 2 and 2 respectively(Supplementary table 1), including ”stable
group”(258 cases, 68.2%), ”increasing-slow group”(67 cases, 17.6%),
and ”increasing-fast group”(53 cases, 14.2%). In terms of model
validation, the AvePP were all greater than 0.7(Supplementary table 2),
the number of people assigned to each track group was close to the
estimated value of the model(Supplementary table 3), and the occurrence
ratios of correctly assigned to the track group were all greater than
5(Supplementary table 4), indicating that the model fitting was ideal.
Table 1 shows preoperative clinical characteristics for all patients.
The length of medical history, age, female,
complications of AF and PH, LAD, TRA,
RATD, RALD and LVEDD showed significant difference among the three
different FTR longitudinal trajectory groups(p <0.05).