Cohort analysis of pediatric intussusception score to diagnose intussusception

Table 2 Diagnostic value of promising parameters and proposed scores to detect intussusception

Promising parameters and proposed models	Sensitivity	Specificity	PPV	NPV	Accuracy
AR	0.592	0.709	0.784	0.494	0.634
Male gender	0.633	0.382	0.646	0.368	0.542
Age 6 mo to 2 years	0.653	0.582	0.736	0.485	0.627
Vomiting	0.592	0.400	0.637	0.355	0.523
Bloody stool	0.357	0.745	0.714	0.394	0.497
Irritability or abdominal pain	0.867	0.200	0.659	0.458	0.627
Abdominal distension	0.398	0.636	0.661	0.372	0.484
Palpable abdominal mass	0.245	1	1	0.426	0.516
Fever	0.214	0.673	0.538	0.325	0.379
Lethargy	0.245	0.691	0.585	0.339	0.405
Age 6 mo to 2 years + irritability or abdominal pain	0.959	0.091	0.653	0.556	0.647
Age 6 mo to 2 years + irritability or abdominal pain + palpable abdominal mass	0.704	0.582	0.75	0.525	0.66
Age 6 mo to 2 years + irritability or abdominal pain + abdominal distension	0.959	0.091	0.653	0.556	0.647
Age 6 mo to 2 years + irritability or abdominal pain + vomiting	0.959	0.091	0.653	0.556	0.647
Model 1: AR + age 6 mo to 2 years + irritability or abdominal pain	0.857	0.455	0.737	0.641	0.712
Model 2: AR + age 6 mo to 2 years + irritability or abdominal pain + palpable abdominal mass	0.816	0.545	0.762	0.625	0.719
Model 3: AR + age 6 mo to 2 years + irritability or abdominal pain + abdominal distension	0.857	0.455	0.737	0.641	0.712
Model 4: AR + age 6 mo to 2 years + irritability or abdominal pain + vomiting	0.857	0.455	0.737	0.641	0.712

AR: Abdominal X-ray, PPV: Positive predictive value; NPV: Negative predictive value.