A Nomogram Model for Individualized Prediction of the Risk of Respiratory Tract Infection within Six Months after Diagnosis in Patients with Primary Immune Thrombocytopenia

Table 1

Single factor analysis that may affect the onset of symptoms in patients with ITP within half a year after diagnosis.

Clinical information	Noninfected group ()	Infected group ()	/
Gender
Male	112 (58.95)	26 (50.0)
Female	78 (41.05)	26 (50.0)	1.334^b	0.248
Age (years)			3.815^a	<0.001
Drinking history
Yes	56 (29.47)	20 (38.46)
No	134 (70.53)	32 (61.54)	1.531^b	0.216
Smoking history
Yes	71 (37.37)	37 (71.15)
No	119 (62.63)	15 (28.85)	18.858^b	<0.001
Pathogen
Virus	108 (56.84)	37 (71.15)
Germ	82 (43.16)	15 (28.85)	3.482^b	0.062
Combined anemia
Yes	67 (35.26)	22 (42.31)
No	123 (64.74)	30 (57.69)	0.871^b	0.351
Use of glucocorticoid
Yes	96 (50.53)	40 (76.92)
No	94 (49.47)	12 (23.08)	11.557^b	0.001
Splenectomy treatment
Yes	56 (29.47)	12 (23.08)
No	134 (70.53)	40 (76.92)	0.827^b	0.363
CRP(mg/L)			4.659^a	<0.001
CD3^+ (%)			0.998^a	0.319
CD4^+ (%)			4.248^a	<0.001
CD8^+ (%)			6.573^a	<0.001
Platelet count (×10^9/L)			4.610^a	<0.001

Note: CRP: C-reactive protein; CD₃⁺: CD3-positive T-lymphocytes; CD₄⁺: CD4-positive T-lymphocytes; CD₈⁺: CD8-positive T-lymphocytes. ^b stands for test, and ^a stands for -test.