Regression curves: LOX, y = 0.013x2 − 0.6184x + 4.0512, R
2 = 0.5728, P < 0.001; p16, y = 0.0107x2 − 0.6055x + 5.2943, R
2 = 0.7891, P < 0.00001; RUNX3, y = 0.0182x2 − 1.2234x + 11.566, R
2 = 0.5595, P < 0.001; and TIG 1, y = 0.0068x2 − 0.3586x + 2.4306, R
2 = 0.4670, P < 0.01.