Group I Group II Group IIIa Group IIIb
(n=73) (n=64) (n=58) (n=9)
Manner of poisoning 16.339 19.601 17.892 19.493
Respiratory rate 1.326 1.22 -1.846 -2.275
Cyanosis -2.088 2.461 34.335 37.338
Respiratory Failure 76.065 83.579 158.732 172.147
Pulmonary oedema -17.5 -21.211 -12.361 -21.351
Shock -13.609 -10.278 2.873 27.773
Cardiac arrest 141.146 132.046 127.259 233.208
Seizure -49.094 -19.704 -12.998 -16.039
Coma -11.506 -2.573 8.586 6.653
ST segment changes 49.829 66.426 87.721 121.984
pH 623.242 607.869 606.527 608.071
HCO3¯ 0.235 -0.031 0.321 0.668
K 25.061 23.154 18.848 25.04
Alanine transaminase (ALT) -0.174 -0.136 -0.127 0.279
Creatine kinase MB (CKMB) -1.1 -1.159 -0.897 0.145
(Constant) -2367.5 -2275.8 -2305.2 -2541.7
Table 6: Classification function coefficients of discriminant analysis.