Table 2.

Meta-analysis of laboratory findings between severe and non-severe patients with COVID-19.

Parameters	No. of cohort	Sample size (Severe/Non-Severe)	SMD	95% CI	I2 (%)	Statistical method	p	Publication bias (p Egger)
Leukocyte (×109/L)	24	1119/2825	0.35	0.09 to 0.61	90	REM	0.009*	0.725
Lymphocyte (×109/L)	24	1090/2832	−0.57	−0.73 to −0.40	73	REM	<0.00001*	0.547
Neutrophil (×109/L)	16	675/1257	0.50	0.28 to 0.72	72	REM	<0.0001*	0.892
Thrombocyte (×109/L)	15	624/2103	−0.33	−0.52 to −0.14	67	REM	0.0006*	0.840
D-dimer (μg/mL or mg/L)	14	451/1205	0.56	0.32 to 0.80	74	REM	<0.00001*	0.865
CRP (mg/L)	17	737/1272	0.99	0.69 to 1.29	85	REM	<0.00001*	0.112
PCT (ng/mL)	13	596/1041	0.19	−0.06 to 0.44	75	REM	0.14	0.930

SMD, standard mean difference; CI, confidence interval, FEM, fixed-effect model; REM, random-effect model.

^*p < 0.05.