Table 7.

Association rules between blood stasis and symptoms.

Consequent	Antecedent	Support (%)	Confidence (%)
Blood stasis = T	Spontaneous sweating = T and Cyanosis of lips = T	31.43	84.85
Blood stasis = T	Night sweats = T and Cyanosis of lips = T	35.56	83.04
Blood stasis = T	Thready pulse = T and Cyanosis of lips = T	33.65	82.55
Blood stasis = T	Oedema = T and Cyanosis of lips = T	40.32	82.28
Blood stasis = T	Wiry pulse = T and Cyanosis of lips = T	40.95	82.17
Blood stasis = T	Chest pain = T and Weakness = T	31.11	82.14
Blood stasis = T	Chest pain = T	32.22	81.77
Blood stasis = T	Cyanosis of nails = T and Spiritlessness = T	30.48	81.25
Blood stasis = T	Abdominal distension = T and Cyanosis of lips = T	31.11	81.12
Blood stasis = T	Cyanosis of nails = T and Chest tightness = T	31.90	81.09
Blood stasis = T	Chest pain = T and Chest tightness = T	30.79	80.93
Blood stasis = T	Cough = T and Cyanosis of lips = T	33.17	80.86
Blood stasis = T	Cyanosis of nails = T and Shortness of breath = T	31.43	80.81
Blood stasis = T	Insomnia = T and Cyanosis of lips = T	44.13	80.58
Blood stasis = T	Moist tongue coating = T and Cyanosis of lips = T	36.67	80.52

T= true, indicating the presence of the syndrome or symptom.