Nomogram-based prediction of post-splenectomy thrombocytosis in children with hereditary spherocytosis

Table 1 Clinical characteristics of children with hereditary spherocytosis undergoing splenectomy, mean ± SD

Variables	Thrombocytosis group (n = 158)	Normal platelet group (n = 72)	P value
Age (years)	9.4 ± 2.3	9.1 ± 2.5	0.36
Sex (male/female)	90/68	42/30	0.88
Body mass index (kg/m2)	18.9 ± 2.4	18.6 ± 2.2	0.42
Preoperative Hb (g/L)	92.1 ± 11.6	94.5 ± 12.2	0.27
Reticulocyte (%)	5.6 ± 1.8	4.9 ± 1.6	0.03
History of transfusion, n (%)	45 (28.5)	17 (23.6)	0.41
Splenic size (longest diameter, cm)	15.2 ± 2.1	14.9 ± 2.3	0.49

P values were calculated using independent t-test or χ² test as appropriate. Hb: Hemoglobin.