Table 1.
Symptom |
Patient group |
χ2value | Statistical significance | |
---|---|---|---|---|
A(n = 272) | B (n = 78) | |||
Stomach ache | 1 | 78 | 344.30 | P <0.05 |
Jaundice | 0 | 3 | 10.55 | P <0.05 |
Fever | 2 | 32 | 112.19 | P <0.05 |
Secondary pancreatitis | 0 | 10 | 35.90 | P <0.05 |
Residual calculus of bile duct | 0 | 51 | 208.18 | P <0.05 |
Carcinogenesis of residual bile duct | 0 | 11 | 39.60 | P <0.05 |
Data presented as n patient prevalence.
Statistically significant between-group difference at P <0.05 (χ2-test).