Systemic immune-inflammation index combined with pediatric appendicitis score in assessing the severity and prognosis for paediatric appendicitis

Table 4 Correlation analysis of the systemic immune-inflammation index, pediatric appendicitis score, and disease severity in children aged 5 years and older with appendicitis

Parameter	r	R2	P value
Neutrophil count (× 109/L)	-0.263	0.069	0.007
Lymphocyte count (× 109/L)	0.305	0.093	0.002
Platelet count (× 109/L)	-0.204	0.041	0.038
SII	-0.331	0.11	< 0.001
Alvarado score	0.233	0.054	0.017
AIR score	0.204	0.042	0.038
Imaging findings score	0.287	0.082	0.003
PAS	0.438	0.192	< 0.001

SII: Systemic immune-inflammation index; PAS: Pediatric appendicitis score.