Fig. 2

A HCO₃⁻ concentration is positively correlated with CT90 (r = 0.437, P < 0.001); B HCO₃⁻ concentration is positively correlated with AHT (r = 0.433, P < 0.001); C HCO₃⁻ concentration is positively correlated with HAD (r = 0.433, P < 0.001)