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. 2022 Aug 9;2022:9736667. doi: 10.1155/2022/9736667

Table 6.

Balance test before and after covariable matching.

Variable Unmatched Mean %bias %reduct bias t-test V(T)/V(C)
Matched Treated Control t p > t
Ind U 2.1747 2.0311 14.8 2.72 0.007 1
M 2.173 2.2737 −10.3 29.9 −1.53 0.125 0.86

Own U 0.76632 0.79076 −5.9 −1.09 0.274 .
M 0.76582 0.727 9.3 −58.8 1.37 0.17 .

Reg U 5.7747 5.7874 −0.3 −0.05 0.961 0.98
M 5.7848 6.0593 −5.7 −2068.4 −0.87 0.383 0.95

Size U 4.90E+09 2.70E+09 27.5 5.27 0 1.42
M 4.60E+09 3.80E+09 10.1 63.3 1.77 0.077 0.85

IIR U 0.12716 0.15176 −3.1 −0.48 0.628 0.06
M 0.12686 0.12862 −0.2 92.9 −0.1 0.923 0.79

ROA U 0.05293 0.04712 7 1.21 0.226 0.49
M 0.05299 0.06321 −12.4 −76 −1.85 0.064 0.45