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. 2025 Aug 26;15:31323. doi: 10.1038/s41598-025-16540-1

Table 12.

Panel threshold model parameter estimates.

Variables Regime1 q <  = 412 Regime2 q > 412
gen − 0.013 0.137
(0.032) (0.111)
old − 0.0004 0.009
(0.0008) (0.005)
edu 0.009 − 0.029
(0.011) (0.045)
FC 0.041 0.071
(0.017) (0.103)
MO 0.015 0.302
(0.007) (0.103)
FMI 0.155 − 0.068
(0.033) (0.095)
LT − 0.093 − 0.249
(0.036) (0.188)
FMStI (FMStI <  22.899) 0.446*** − 0.352
(0.069) (0.479)
FMStI (FMStI ≥  22.899) 0.582*** − 1.292
(0 0.310) (0.587)
Sum of Squared Errors 58.498 3.227
R-squared 0.063 0.084

*, **, and *** indicate significant at the 10, 5, and 1% levels. Parentheses values are regression SE.