Retrospective Multivariate Analysis of Data from Children with Suspected Appendicitis: A New Tool for Diagnosis

Table 2

Results of logistic regression and determination of new scoring system (NSS) scores according to odds ratios (CI: confidence interval, NSS: new scoring system, and CRP: C-reactive protein).

Predictor	Odds ratio	95 CI	NSS; Score
Male gender	1.667	1.188 – 2.339	0.5
Continuous abdominal pain	15.022	9.981 – 22.611	3
Migration of pain	15.637	10.187 – 24.002	3
Anorexia	2.853	1.964 – 4.143	0.5
Bilious vomiting	5.285	3.383 – 8.256	1
Pyrexia	4.110	2.695 – 6.267	1
Right lower quadrant tenderness	4.090	2.121 – 7.882	1
Guarding	8.806	5.585 – 13.886	2
Rebound tenderness	7.863	5.416 – 11.417	2
Positive heel drop test	30.195	18.230 – 50.011	3
Gurgling	6.892	3.977 – 11.944	2
Leucocytosis	5.809	3.705 – 9.107	2
Neutrophilia	6.216	4.142 – 9.3308	2
Increased CRP	3.816	2.692 – 5.409	1
Scoliosis to the right side	4.432	3.077 – 6.384	1
Localized air-fluid level	4.769	3.327 – 6.836	1
Localized gas deposition	5.694	3.894 – 8.326	1
Appendicolith	12.031	2.689 – 53.825	3
Increased appendix diameter	5.705	3.768 – 8.638	1
Thickened appendix wall	7.214	4.810 – 10.821	2
Periappendiceal free fluid	4.792	3.316 – 6.924	1